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Hindawi Publishing Corporation
Evidence-Based Complementary and Alternative Medicine
Volume 2011, Article ID 265607, 5 pages
doi:10.1093/ecam/nep210




Case Report
Goal-Directed Acupuncture in Sports—Placebo or Doping?

          Taras I. Usichenko, Vasyl Gizhko, and Michael Wendt
          Department of Anesthesiology and Intensive Care Medicine, Ernst Moritz Arndt University, Friedrich Loeffler Str. 23b,
          17487 Greifswald, Germany

          Correspondence should be addressed to Taras I. Usichenko, taras@uni-greifswald.de

          Received 19 August 2009; Accepted 12 November 2009
          Copyright © 2011 Taras I. Usichenko et al. This is an open access article distributed under the Creative Commons Attribution
          License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly
          cited.

          The modern pentathlon (MP), sports discipline including fencing, swimming, steeplechase and a cross-country run, requires a
          rapid change of central nervous and peripheral neuromuscular activity from one sport to another in order to achieve the best
          possible results. We describe the case where a top MP athlete was supported by a program of acupoint stimulation, which was
          directed to relieve the symptoms, preventing him from effective performance. Although the fact of acupoint stimulation was
          associated with improvement of his results, other factors like training effect, placebo and nonspecific physiological effects and their
          mechanisms in sports are discussed in a literature review. The popularity of complementary and alternative medicine methods
          among the athletes raises the question of their potential misuse as a doping in competitive sports.




1. Introduction                                                          during the shooting contest; stiffness of the shoulder muscles
                                                                         during swimming.
The modern pentathlon (MP), an olympic sports discipline                     The program of acupuncture point stimulation was
                      ´ e
since 1912, includes ep´ e fencing, pistol shooting, 200-m               elaborated according to the symptoms, which have been
freestyle swimming, a steeplechase and a 3000-m cross-                   associated with lower level of performance in each MP
country run. Beyond speed, strength, concentration and                   event. The decision for the choice of acupuncture points
intensive endurance performance, the two-day MP contest                  was strengthened by diagnostics, using distant computed
requires a rapid change of different types of central nervous             scanning thermography [2]. This diagnostic procedure was
and peripheral neuromuscular activity in various muscle                  performed using the “Agema Thermovision 870” device
groups. This is a challenge for athletes to avoid carry-over             with a measurement resolution of 0.13◦ C. The primary
fatigue from one sport to another in order to achieve the best           data, registered by scanning thermography were analyzed
possible results [1].                                                    using the software, which correlated the localization of
                                                                         the skin areas, where the local temperature was changed,
                                                                         with the anatomical description of acupuncture points [3].
2. Case Report                                                           Thermography of the athlete’s body was performed at least
                                                                         three times daily after major competitions in which the
We describe the case where a top MP athlete was supported                athlete did not achieve the expected results, his performance
by a program of acupoint stimulation over 7 years of his                 being associated with the symptoms described above.
career. The program of acupoint stimulation was started                      The acupuncture points, which had local temperature
when the 20-year-old athlete was nominated as a candidate                differences on the surface of the skin of the athlete identified
for the national MP team.                                                by means of thermography, belonged to the stomach (ST36
    At that time the athlete reported that several factors               and ST40), gall bladder (GB 31, 32, 34 and 40) and bladder
limited his effective sports performance. These factors were              (BL18 and 19) meridians [4]. Based on these findings the
severe epigastric pain and knee weakness during running,                 acupuncture points ST36 and GB34 were recommended for
soreness in the wrist and fatigue of the dominant arm during             stimulation before running (Figure 1(a)). Local acupuncture
fencing; general excitement and tremor of the dominant arm               points were chosen to relieve (Figures 1(b) and 1(c)):
2                                                                    Evidence-Based Complementary and Alternative Medicine

                                                                                      Acupuncture program for modern pentathlon
                                      GB21
                                                                                 1

                                                                                 2

                                               LI14                              3
                                                                                 4
                                                                                 5




                                                                       Ranking
      GB34
                                                LI11                             6
     ST36
                                                   LI10
                                                                                 7
                                                                                 8
                                                                                 9
                                                      TH5
                                                                                 10

                                                            LI4     Below 10
                                                                                      1      2      3       4       5      6   7
                                                                                                  Years in national team

               (a)                       (b)                       Figure 2: Performance success of the athlete through his sports’
                                                                   career. x-axis means the years of sports’ performance in national
                                                                   team, y-axis means the ranking at the international competitions as
                                                                   black stars (World Cup, World Championships, Olympic games).
          H7


                                                 GV26              in 3000-m cross-country running from 10 minutes to <9
                                                                   minutes and 25 seconds, because epigastric pain and knee
                     (c)                 (d)
                                                                   weakness, which had been the major limiting factors during
                                                                   running were successfully relieved. Other symptoms (arm
Figure 1: Acupuncture points, used for stimulation to improve      fatigue during fencing, stiffness of the shoulder muscles
the sports’ performance in top modern pentathlon athlete.          during swimming and general excitement and tremor of
(a) Acupuncture points ST36 and GB34, situated on the proximal     dominant arm during shooting) could be also successfully
latero-anterior surface of the lower leg, were stimulated before   treated with the stimulation of acupuncture points.
running. (b) Acupuncture points of the upper extremities LI4,          Figure 2 shows the increased ranking in international
10, 11; TH 5 and GB21 were used to relieve arm fatigue during      competitions (World Cup, World Championships, Olympic
fencing and stiffness of the shoulder muscles during swimming.
                                                                   games) from the age of 20 years until the end of his sports
(c) Acupuncture point H7, situated on the distal ulnar part of
the forearm was used to treat general excitement and tremor of
                                                                   career. During that time the athlete was among the best in
dominant arm during shooting. (d) Acupuncture point GV26,          the national MP team.
situated in the midline of the upper lip, was used, as the point       The increased success of athlete’s performance was
for general tonification. For precise anatomical landmarks of       attributed to the acupuncture program, although his coach
acupuncture points please consult [4].                             reported a strong psychological effect of the treatment.

                                                                   2.1. Literature Review. Here we present a case report
      (i) arm fatigue during fencing—LI4, 10, 11; TH 5;            where the stimulation of acupuncture points in a talented
     (ii) stiffness of the shoulder muscles during swimming—        young athlete was strongly associated with rapid signifi-
          LI4, 11, 14; TH5; GB21;                                  cant improvement of his performance. This improvement
    (iii) general excitement and tremor of dominant arm            remained stable under the program during his entire sports
          during shooting—H7 and LI4.                              career. The choice of the acupuncture points for stimulation
                                                                   was directed to relieve the symptoms, which prevented
In addition, before running and swimming, and during               him from achieving the desired results and was based
the fencing contest GV26 was stimulated, as the point for          on the experts’ recommendations taken from a standard
general tonification (Figure 1(d)). Acupuncture points were         acupuncture textbook [4] and enhanced by the diagnostics
eventually stimulated by pressure and by electromagnetic           using distant computed scan thermography [2].
millimeter waves [5]. The time of stimulation ranged from 5            We cannot rule out that the improvement of the overall
to 30 min, depending on the goal of treatment. After several       performance described in this case report may have been due
applications by an experienced acupuncturist, the athlete          to the pure effect of training. However, the possible effects
himself and his coach were taught to perform the treatment.        of acupuncture therapy deserve to be further explored, since
    Immediately after the beginning of the acupuncture             several experienced athletes and coaches whom we contacted
support program, the athlete improved his performance              hesitate to explain the rapid and afterwards continuous
Evidence-Based Complementary and Alternative Medicine                                                                            3

improvement of his time in 3000 m cross-country running            confirms the hypothesis of improved sports performance
from 10 minutes to <9 minutes 25 seconds as being due to           due to increased oxygen intake in competitive athletes. The
training effect alone. This improvement was achieved mainly         authors found out that stimulation of auricular acupuncture
due to complete relief from epigastric pain, which had been        points in male boxing athletes led to the enhanced recovery
the main burden to the athlete during previous competitions.       after exercise oxygen consumption using track treadmill in
The relief other symptoms, which were considered to be the         comparison with control condition [18]. Another investi-
limiting factors (arm fatigue during fencing, stiffness of the      gation, performed by So et al. in a crossover manner in
shoulder muscles during swimming and general excitement            healthy volunteers, demonstrated the site-specific effect of
and tremor of dominant arm during shooting) enabled the            TEAS, where stimulation of specific acupuncture points
stable performance in these kinds of sports.                       of the calf enhanced the rate of muscle force recovery in
     It is known that a single stimulation of acupuncture          comparison with stimulation of non-acupuncture sites [19].
points in trained athletes may substantially improve their         These investigations encouraged us to report the case of goal-
results in light athletics, swimming and cycling. Kaada            directed acupuncture in the modern pentathlon, in order
reported a mean improvement of 2.3 seconds in 800 m track          to propose to verify the suggested effects of acupuncture in
racing (n = 5) and 4.3 seconds in 1000 m road racing (n            appropriate randomized controlled trials.
= 9) after electric stimulation of LI4 acupuncture point                It is interesting, that sports physicians in China treat at
compared to placebo stimulation in a crossover investigation       least 70% of top athletes using traditional Chinese medicine
in competitive track-and-field athletes [6].                        including acupuncture, where both athletes and medical
     Regarding the fact that the site-specific acupuncture is       doctors believe in the energetic nature of acupuncture
effective only for a few conditions in clinical medicine [7, 8]     meridians [20]. Regarding the increasing popularity of com-
it is plausible to explain the observed effects by non-specific      plementary and alternative medicine (CAM) among Western
physiological and psychological effects of acupuncture. Espe-       athletes—56% of athletes consume CAM in comparison with
cially the placebo effect might play a great role, since placebo,   36% of normal population [21], the question concerning
in addition to physiological effects, may constitute 30–50%         the putative doping aspect of acupuncture and other CAM
of the entire clinical effect of acupuncture [8–10].                methods might be raised due to the existing criteria of doping
     On the other hand, competitive athletes are extraordi-        definition. So far, acupuncture or other CAM methods are
nary sensitive to placebo effects. Thus a survey among 48           not on the list of substances and methods prohibited by
top professional athletes showed that the majority of them         World Anti-Doping Agency (WADA) at all times in and out
(97%) believe that the placebo effect influences the success of      of competition [22]. According to existing WADA criteria,
sports performance. Seventy-three percent had experienced a        formally acupuncture has a potential to be included in this
placebo effect during their career and 10 athletes (33%) in the     list. Indeed, according to the World Anti-Doping Code 2009,
study offered explanations of the nature of the placebo effect       a substance or method shall be considered for inclusion on
[11]. The expectancy-based placebo effect has been shown            the prohibited list if WADA determines that the substance
to produce the same performance improvement in trained             or method meets any two of the following three criteria:
athletes, as could be achieved using various pharmacological       (i) medical or other scientific evidence, pharmacological
agents—caffeine and sodium bicarbonate in cyclists [12, 13]         effect or experience that the substance or method, alone
and anabolic steroids in weight lifting [14, 15], thus even        or in combination with other substances or methods, has
challenging the specific effect of these drugs.                      the potential to enhance or enhances sport performance;
     The enhanced motivation might be the other potential          (ii) medical or other scientific evidence, pharmacological
psychological mechanism, resembling the reward framework           effect or experience that the use of the substance or method
of placebo pre-conditioning and even acting through the            represents an actual or potential health risk to the athlete;
dopaminergic system of basal ganglia, considered now as one        (iii) WADA’s determination that the use of the substance
of the main mechanisms of placebo [16, 17].                        or method violates the spirit of sport described in the
     However, there are several reports on specific effects          Introduction to the Code [23].
of transcutaneous electric acupuncture point stimulation                We presume that criterion 2 would be irrelevant for
(TEAS). In a series of experimental crossover investigations       acupuncture since rare serious complications, prospectively
in competitive athletes, Kaada has shown that the runners          monitored in thousands of patients, were mainly due to
(800 and 1000 m races) and swimmers (100, 200 and 400 m            needling procedure itself [24], which can be prevented
swimming) improved their personal results after TEAS               using other non-invasive stimulation modalities. Neverthe-
in comparison with sham procedure where sub threshold              less, according to existing WADA definition of doping,
electric stimuli were applied to acupuncture point LI4 [6].        the combination of criteria 1 and 3 might be relevant
The cause of the increased physical endurance in athletes in       for acupuncture and other CAM methods. However, if
this investigation was suggested to be the result of reduced       acupuncture has the potential to enhance or enhances sport
muscular tension, increased capacity of oxygen transport           performance (criterion 1 is fulfilled), we do not believe that
to the working muscles, increased capacity of the muscles          the stimulation of acupuncture points violates the spirit of
to utilize oxygen and increased muscular microcirculation          Olympic movement (criterion 2).
since the potential psychological factors (like placebo and             Another target for doping suspect might be the potential
motivation) were excluded by sufficient blinding of the              analgesic mechanism of acupuncture, which is known to
study participants. The recent investigation of Lin et al.         be associated with the activation of endogenous opioid
4                                                                         Evidence-Based Complementary and Alternative Medicine

system [25]. Interestingly, placebo-induced analgesia is                        Diploma Thesis, Department of Optics, Physical Faculty, Taras
also mediated through the enhanced neurotransmission of                         Shevchenko University, Kyiv, Ukraine, 1994.
endogenous opioids [26]. Recently it was shown that placebo               [4]   X. Cheng, Chinese Acupuncture and Moxibustion, Foreign
produces measurable opioid-mediated increase of physi-                          Languages Press, Beijing, China, 1988.
cal performance. Benedetti et al. [27] demonstrated that                  [5]   T. I. Usichenko, H. Edinger, V. V. Gizhko, C. Lehmann,
application of placebo injection on the day of competition                      M. Wendt, and F. Feyerherd, “Low-intensity electromagnetic
                                                                                millimeter waves for pain therapy,” Evidence-Based Comple-
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                                                                                mentary and Alternative Medicine, vol. 3, no. 2, pp. 201–207,
thus enhanced physical performance in healthy volunteers,                       2006.
who were conditioned with only two injections of morphine                 [6]   B. Kaada, “Improvement of physical performance by tran-
(one injection per week) before. This effect could be                            scutaneous nerve stimulation in athletes,” Acupuncture and
blocked by the administration of opioid-receptor antagonist                     Electro-Therapeutics Research, vol. 9, no. 3, pp. 165–180, 1984.
naloxone. Alone these morphine-like effects of placebo raised              [7]   A. Lee and L. T. Y. Fan, “Stimulation of the wrist acupuncture
the question whether the application of placebo is ethically                    point P6 for preventing postoperative nausea and vomiting,”
acceptable in sports competitions, formally throwing the                        Cochrane Database of Systematic Reviews, no. 2, Article ID
shadow of suspicion on all forms of mental training, psy-                       CD003281, 2009.
chological interventions and mind–body CAM techniques,                    [8]   H. G. Endres, “Acupuncture: specific and non-specific effects,”
which can enhance sport performance. However, we believe                        Forschende Komplementarmedizin, vol. 15, no. 1, pp. 6–8, 2008.
                                                                          [9]   G. T. Lewith and D. Machin, “On the evaluation of the clinical
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                                                                                effects of acupuncture,” Pain, vol. 16, no. 2, pp. 111–127, 1983.
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                                                                                                                             a
relieve these techniques from suspicion of doping potential                     acupuncture what it is intended to be?” Evidence-Based
in the future.                                                                  Complementary and Alternative Medicine. In press.
    Acupuncture and other CAM techniques, eventually                     [11]   T. H. Trojian and C. J. Beedie, “Placebo effect and athletes,”
used to enhance the sports performance, should be clearly                       Current Sports Medicine Reports, vol. 7, no. 4, pp. 214–217,
distinguished from the methods with doping potential. For                       2008.
this purpose the existing WADA criteria concerning CAM                   [12]   C. J. Beedie, E. M. Stuart, D. A. Coleman, and A. J. Foad,
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opinion, involving clinicians, physiologists and specialists on                 and Science in Sports and Exercise, vol. 38, no. 12, pp. 2159–
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                                                                                placebo effects of an ergogenic aid on athletic performance,”
“ladder” of an evidence-based approach in clinical medicine
                                                                                Journal of Sport and Exercise Psychology, vol. 29, no. 3, pp. 382–
[28], we suggested the idea of goal-directed stimulation of                     394, 2007.
acupuncture points in athletes. As a logical next step the               [14]   G. Ariel and W. Saville, “Anabolic steroids: the physiological
expected “performance-improving” effects of acupuncture                          effects of placebos,” Medicine & Science in Sports & Exercise,
and suggested specificity of acupuncture for this applica-                       vol. 4, pp. 124–126, 1972.
tion should be verified using appropriate methodology of                  [15]   C. N. Maganaris, D. Collins, and M. Sharp, “Expectancy effects
randomized controlled trials including the updated expert’s                     and strength training: do steroids make a difference?” Sport
guidelines on developing research of complex interventions                      Psychologist, vol. 14, no. 3, pp. 272–278, 2000.
[29].                                                                    [16]   Y. Niv, “Cost, benefit, tonic, phasic: what do response rates tell
                                                                                us about dopamine and motivation?” Annals of the New York
                                                                                Academy of Sciences, vol. 1104, pp. 357–376, 2007.
Funding                                                                  [17]   F. Benedetti, “Mechanisms of placebo and placebo-related
                                                                                effects across diseases and treatments,” Annual Review of
Institutional sources of the Department of Anesthesiology                       Pharmacology and Toxicology, vol. 48, pp. 33–60, 2008.
and Intensive Care Medicine, Ernst Moritz Arndt University               [18]   Z.-P. Lin, C.-Y. Wang, T.-R. Jang et al., “Effect of auricular
of Greifswald.                                                                  acupuncture on oxygen consumption of boxing athletes,”
                                                                                Chinese Medical Journal, vol. 122, no. 13, pp. 1587–1590, 2009.
                                                                         [19]   R. C. H. So, J. K.-F. Ng, and G. Y. F. Ng, “Effect of transcu-
Acknowledgment                                                                  taneous electrical acupoint stimulation on fatigue recovery of
                                                                                the quadriceps,” European Journal of Applied Physiology, vol.
The authors thank Dr Dragan Pavlovic for his valuable
                                                                                100, no. 6, pp. 693–700, 2007.
comments to manuscript and figures.                                       [20]   J. Watts, “Feature: olympian pins and needles,” tHE Lancet,
                                                                                vol. 366, supplement 1, pp. S62–S63, 2005.
References                                                               [21]   A. W. Nichols and R. Harrigan, “Complementary and alterna-
                                                                                tive medicine usage by intercollegiate athletes,” Clinical Journal
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Artigo - Acupuncture and sports

  • 1. Hindawi Publishing Corporation Evidence-Based Complementary and Alternative Medicine Volume 2011, Article ID 265607, 5 pages doi:10.1093/ecam/nep210 Case Report Goal-Directed Acupuncture in Sports—Placebo or Doping? Taras I. Usichenko, Vasyl Gizhko, and Michael Wendt Department of Anesthesiology and Intensive Care Medicine, Ernst Moritz Arndt University, Friedrich Loeffler Str. 23b, 17487 Greifswald, Germany Correspondence should be addressed to Taras I. Usichenko, taras@uni-greifswald.de Received 19 August 2009; Accepted 12 November 2009 Copyright © 2011 Taras I. Usichenko et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The modern pentathlon (MP), sports discipline including fencing, swimming, steeplechase and a cross-country run, requires a rapid change of central nervous and peripheral neuromuscular activity from one sport to another in order to achieve the best possible results. We describe the case where a top MP athlete was supported by a program of acupoint stimulation, which was directed to relieve the symptoms, preventing him from effective performance. Although the fact of acupoint stimulation was associated with improvement of his results, other factors like training effect, placebo and nonspecific physiological effects and their mechanisms in sports are discussed in a literature review. The popularity of complementary and alternative medicine methods among the athletes raises the question of their potential misuse as a doping in competitive sports. 1. Introduction during the shooting contest; stiffness of the shoulder muscles during swimming. The modern pentathlon (MP), an olympic sports discipline The program of acupuncture point stimulation was ´ e since 1912, includes ep´ e fencing, pistol shooting, 200-m elaborated according to the symptoms, which have been freestyle swimming, a steeplechase and a 3000-m cross- associated with lower level of performance in each MP country run. Beyond speed, strength, concentration and event. The decision for the choice of acupuncture points intensive endurance performance, the two-day MP contest was strengthened by diagnostics, using distant computed requires a rapid change of different types of central nervous scanning thermography [2]. This diagnostic procedure was and peripheral neuromuscular activity in various muscle performed using the “Agema Thermovision 870” device groups. This is a challenge for athletes to avoid carry-over with a measurement resolution of 0.13◦ C. The primary fatigue from one sport to another in order to achieve the best data, registered by scanning thermography were analyzed possible results [1]. using the software, which correlated the localization of the skin areas, where the local temperature was changed, with the anatomical description of acupuncture points [3]. 2. Case Report Thermography of the athlete’s body was performed at least three times daily after major competitions in which the We describe the case where a top MP athlete was supported athlete did not achieve the expected results, his performance by a program of acupoint stimulation over 7 years of his being associated with the symptoms described above. career. The program of acupoint stimulation was started The acupuncture points, which had local temperature when the 20-year-old athlete was nominated as a candidate differences on the surface of the skin of the athlete identified for the national MP team. by means of thermography, belonged to the stomach (ST36 At that time the athlete reported that several factors and ST40), gall bladder (GB 31, 32, 34 and 40) and bladder limited his effective sports performance. These factors were (BL18 and 19) meridians [4]. Based on these findings the severe epigastric pain and knee weakness during running, acupuncture points ST36 and GB34 were recommended for soreness in the wrist and fatigue of the dominant arm during stimulation before running (Figure 1(a)). Local acupuncture fencing; general excitement and tremor of the dominant arm points were chosen to relieve (Figures 1(b) and 1(c)):
  • 2. 2 Evidence-Based Complementary and Alternative Medicine Acupuncture program for modern pentathlon GB21 1 2 LI14 3 4 5 Ranking GB34 LI11 6 ST36 LI10 7 8 9 TH5 10 LI4 Below 10 1 2 3 4 5 6 7 Years in national team (a) (b) Figure 2: Performance success of the athlete through his sports’ career. x-axis means the years of sports’ performance in national team, y-axis means the ranking at the international competitions as black stars (World Cup, World Championships, Olympic games). H7 GV26 in 3000-m cross-country running from 10 minutes to <9 minutes and 25 seconds, because epigastric pain and knee (c) (d) weakness, which had been the major limiting factors during running were successfully relieved. Other symptoms (arm Figure 1: Acupuncture points, used for stimulation to improve fatigue during fencing, stiffness of the shoulder muscles the sports’ performance in top modern pentathlon athlete. during swimming and general excitement and tremor of (a) Acupuncture points ST36 and GB34, situated on the proximal dominant arm during shooting) could be also successfully latero-anterior surface of the lower leg, were stimulated before treated with the stimulation of acupuncture points. running. (b) Acupuncture points of the upper extremities LI4, Figure 2 shows the increased ranking in international 10, 11; TH 5 and GB21 were used to relieve arm fatigue during competitions (World Cup, World Championships, Olympic fencing and stiffness of the shoulder muscles during swimming. games) from the age of 20 years until the end of his sports (c) Acupuncture point H7, situated on the distal ulnar part of the forearm was used to treat general excitement and tremor of career. During that time the athlete was among the best in dominant arm during shooting. (d) Acupuncture point GV26, the national MP team. situated in the midline of the upper lip, was used, as the point The increased success of athlete’s performance was for general tonification. For precise anatomical landmarks of attributed to the acupuncture program, although his coach acupuncture points please consult [4]. reported a strong psychological effect of the treatment. 2.1. Literature Review. Here we present a case report (i) arm fatigue during fencing—LI4, 10, 11; TH 5; where the stimulation of acupuncture points in a talented (ii) stiffness of the shoulder muscles during swimming— young athlete was strongly associated with rapid signifi- LI4, 11, 14; TH5; GB21; cant improvement of his performance. This improvement (iii) general excitement and tremor of dominant arm remained stable under the program during his entire sports during shooting—H7 and LI4. career. The choice of the acupuncture points for stimulation was directed to relieve the symptoms, which prevented In addition, before running and swimming, and during him from achieving the desired results and was based the fencing contest GV26 was stimulated, as the point for on the experts’ recommendations taken from a standard general tonification (Figure 1(d)). Acupuncture points were acupuncture textbook [4] and enhanced by the diagnostics eventually stimulated by pressure and by electromagnetic using distant computed scan thermography [2]. millimeter waves [5]. The time of stimulation ranged from 5 We cannot rule out that the improvement of the overall to 30 min, depending on the goal of treatment. After several performance described in this case report may have been due applications by an experienced acupuncturist, the athlete to the pure effect of training. However, the possible effects himself and his coach were taught to perform the treatment. of acupuncture therapy deserve to be further explored, since Immediately after the beginning of the acupuncture several experienced athletes and coaches whom we contacted support program, the athlete improved his performance hesitate to explain the rapid and afterwards continuous
  • 3. Evidence-Based Complementary and Alternative Medicine 3 improvement of his time in 3000 m cross-country running confirms the hypothesis of improved sports performance from 10 minutes to <9 minutes 25 seconds as being due to due to increased oxygen intake in competitive athletes. The training effect alone. This improvement was achieved mainly authors found out that stimulation of auricular acupuncture due to complete relief from epigastric pain, which had been points in male boxing athletes led to the enhanced recovery the main burden to the athlete during previous competitions. after exercise oxygen consumption using track treadmill in The relief other symptoms, which were considered to be the comparison with control condition [18]. Another investi- limiting factors (arm fatigue during fencing, stiffness of the gation, performed by So et al. in a crossover manner in shoulder muscles during swimming and general excitement healthy volunteers, demonstrated the site-specific effect of and tremor of dominant arm during shooting) enabled the TEAS, where stimulation of specific acupuncture points stable performance in these kinds of sports. of the calf enhanced the rate of muscle force recovery in It is known that a single stimulation of acupuncture comparison with stimulation of non-acupuncture sites [19]. points in trained athletes may substantially improve their These investigations encouraged us to report the case of goal- results in light athletics, swimming and cycling. Kaada directed acupuncture in the modern pentathlon, in order reported a mean improvement of 2.3 seconds in 800 m track to propose to verify the suggested effects of acupuncture in racing (n = 5) and 4.3 seconds in 1000 m road racing (n appropriate randomized controlled trials. = 9) after electric stimulation of LI4 acupuncture point It is interesting, that sports physicians in China treat at compared to placebo stimulation in a crossover investigation least 70% of top athletes using traditional Chinese medicine in competitive track-and-field athletes [6]. including acupuncture, where both athletes and medical Regarding the fact that the site-specific acupuncture is doctors believe in the energetic nature of acupuncture effective only for a few conditions in clinical medicine [7, 8] meridians [20]. Regarding the increasing popularity of com- it is plausible to explain the observed effects by non-specific plementary and alternative medicine (CAM) among Western physiological and psychological effects of acupuncture. Espe- athletes—56% of athletes consume CAM in comparison with cially the placebo effect might play a great role, since placebo, 36% of normal population [21], the question concerning in addition to physiological effects, may constitute 30–50% the putative doping aspect of acupuncture and other CAM of the entire clinical effect of acupuncture [8–10]. methods might be raised due to the existing criteria of doping On the other hand, competitive athletes are extraordi- definition. So far, acupuncture or other CAM methods are nary sensitive to placebo effects. Thus a survey among 48 not on the list of substances and methods prohibited by top professional athletes showed that the majority of them World Anti-Doping Agency (WADA) at all times in and out (97%) believe that the placebo effect influences the success of of competition [22]. According to existing WADA criteria, sports performance. Seventy-three percent had experienced a formally acupuncture has a potential to be included in this placebo effect during their career and 10 athletes (33%) in the list. Indeed, according to the World Anti-Doping Code 2009, study offered explanations of the nature of the placebo effect a substance or method shall be considered for inclusion on [11]. The expectancy-based placebo effect has been shown the prohibited list if WADA determines that the substance to produce the same performance improvement in trained or method meets any two of the following three criteria: athletes, as could be achieved using various pharmacological (i) medical or other scientific evidence, pharmacological agents—caffeine and sodium bicarbonate in cyclists [12, 13] effect or experience that the substance or method, alone and anabolic steroids in weight lifting [14, 15], thus even or in combination with other substances or methods, has challenging the specific effect of these drugs. the potential to enhance or enhances sport performance; The enhanced motivation might be the other potential (ii) medical or other scientific evidence, pharmacological psychological mechanism, resembling the reward framework effect or experience that the use of the substance or method of placebo pre-conditioning and even acting through the represents an actual or potential health risk to the athlete; dopaminergic system of basal ganglia, considered now as one (iii) WADA’s determination that the use of the substance of the main mechanisms of placebo [16, 17]. or method violates the spirit of sport described in the However, there are several reports on specific effects Introduction to the Code [23]. of transcutaneous electric acupuncture point stimulation We presume that criterion 2 would be irrelevant for (TEAS). In a series of experimental crossover investigations acupuncture since rare serious complications, prospectively in competitive athletes, Kaada has shown that the runners monitored in thousands of patients, were mainly due to (800 and 1000 m races) and swimmers (100, 200 and 400 m needling procedure itself [24], which can be prevented swimming) improved their personal results after TEAS using other non-invasive stimulation modalities. Neverthe- in comparison with sham procedure where sub threshold less, according to existing WADA definition of doping, electric stimuli were applied to acupuncture point LI4 [6]. the combination of criteria 1 and 3 might be relevant The cause of the increased physical endurance in athletes in for acupuncture and other CAM methods. However, if this investigation was suggested to be the result of reduced acupuncture has the potential to enhance or enhances sport muscular tension, increased capacity of oxygen transport performance (criterion 1 is fulfilled), we do not believe that to the working muscles, increased capacity of the muscles the stimulation of acupuncture points violates the spirit of to utilize oxygen and increased muscular microcirculation Olympic movement (criterion 2). since the potential psychological factors (like placebo and Another target for doping suspect might be the potential motivation) were excluded by sufficient blinding of the analgesic mechanism of acupuncture, which is known to study participants. The recent investigation of Lin et al. be associated with the activation of endogenous opioid
  • 4. 4 Evidence-Based Complementary and Alternative Medicine system [25]. Interestingly, placebo-induced analgesia is Diploma Thesis, Department of Optics, Physical Faculty, Taras also mediated through the enhanced neurotransmission of Shevchenko University, Kyiv, Ukraine, 1994. endogenous opioids [26]. Recently it was shown that placebo [4] X. Cheng, Chinese Acupuncture and Moxibustion, Foreign produces measurable opioid-mediated increase of physi- Languages Press, Beijing, China, 1988. cal performance. Benedetti et al. [27] demonstrated that [5] T. I. Usichenko, H. Edinger, V. V. Gizhko, C. Lehmann, application of placebo injection on the day of competition M. Wendt, and F. Feyerherd, “Low-intensity electromagnetic millimeter waves for pain therapy,” Evidence-Based Comple- induced an opioid-mediated increase of pain endurance and mentary and Alternative Medicine, vol. 3, no. 2, pp. 201–207, thus enhanced physical performance in healthy volunteers, 2006. who were conditioned with only two injections of morphine [6] B. Kaada, “Improvement of physical performance by tran- (one injection per week) before. This effect could be scutaneous nerve stimulation in athletes,” Acupuncture and blocked by the administration of opioid-receptor antagonist Electro-Therapeutics Research, vol. 9, no. 3, pp. 165–180, 1984. naloxone. Alone these morphine-like effects of placebo raised [7] A. Lee and L. T. Y. 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N¨ slund, “Is placebo a relieve these techniques from suspicion of doping potential acupuncture what it is intended to be?” Evidence-Based in the future. Complementary and Alternative Medicine. In press. Acupuncture and other CAM techniques, eventually [11] T. H. Trojian and C. J. Beedie, “Placebo effect and athletes,” used to enhance the sports performance, should be clearly Current Sports Medicine Reports, vol. 7, no. 4, pp. 214–217, distinguished from the methods with doping potential. For 2008. this purpose the existing WADA criteria concerning CAM [12] C. J. Beedie, E. M. Stuart, D. A. Coleman, and A. J. Foad, methods should be clearly defined based on the experts “Placebo effects of caffeine on cycling performance,” Medicine opinion, involving clinicians, physiologists and specialists on and Science in Sports and Exercise, vol. 38, no. 12, pp. 2159– ethics. 2164, 2006. Regarding this case report as the first step in the [13] M. McClung and D. Collins, ““Because i know it will!”: placebo effects of an ergogenic aid on athletic performance,” “ladder” of an evidence-based approach in clinical medicine Journal of Sport and Exercise Psychology, vol. 29, no. 3, pp. 382– [28], we suggested the idea of goal-directed stimulation of 394, 2007. acupuncture points in athletes. As a logical next step the [14] G. Ariel and W. Saville, “Anabolic steroids: the physiological expected “performance-improving” effects of acupuncture effects of placebos,” Medicine & Science in Sports & Exercise, and suggested specificity of acupuncture for this applica- vol. 4, pp. 124–126, 1972. tion should be verified using appropriate methodology of [15] C. N. Maganaris, D. Collins, and M. Sharp, “Expectancy effects randomized controlled trials including the updated expert’s and strength training: do steroids make a difference?” Sport guidelines on developing research of complex interventions Psychologist, vol. 14, no. 3, pp. 272–278, 2000. [29]. [16] Y. Niv, “Cost, benefit, tonic, phasic: what do response rates tell us about dopamine and motivation?” Annals of the New York Academy of Sciences, vol. 1104, pp. 357–376, 2007. Funding [17] F. Benedetti, “Mechanisms of placebo and placebo-related effects across diseases and treatments,” Annual Review of Institutional sources of the Department of Anesthesiology Pharmacology and Toxicology, vol. 48, pp. 33–60, 2008. and Intensive Care Medicine, Ernst Moritz Arndt University [18] Z.-P. Lin, C.-Y. Wang, T.-R. Jang et al., “Effect of auricular of Greifswald. acupuncture on oxygen consumption of boxing athletes,” Chinese Medical Journal, vol. 122, no. 13, pp. 1587–1590, 2009. [19] R. C. H. So, J. K.-F. Ng, and G. Y. F. Ng, “Effect of transcu- Acknowledgment taneous electrical acupoint stimulation on fatigue recovery of the quadriceps,” European Journal of Applied Physiology, vol. The authors thank Dr Dragan Pavlovic for his valuable 100, no. 6, pp. 693–700, 2007. comments to manuscript and figures. [20] J. Watts, “Feature: olympian pins and needles,” tHE Lancet, vol. 366, supplement 1, pp. S62–S63, 2005. References [21] A. W. Nichols and R. Harrigan, “Complementary and alterna- tive medicine usage by intercollegiate athletes,” Clinical Journal [1] C. L. Baker Jr., “Comments on Olympic Sports medicine. The of Sport Medicine, vol. 16, no. 3, pp. 232–237, 2006. Modern Pentathlon,” American Journal of Sports Medicine, vol. [22] http://www.wada-ama.org/rtecontent/document/2009 Pro- 11, no. 1, pp. 42–45, 1983. hibited List ENG Final 20 Sept 08.pdf. [2] W. Weber, Standardisierte Punktthermographie, Haug, Heidel- [23] http://www.wada-ama.org/rtecontent/document/code v2009 berg, Germany, 1984. En.pdf. [3] Y. V. Krasyuk, Investigation of local thermophysical characteris- [24] D. Melchart, W. Weidenhammer, A. 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  • 5. Evidence-Based Complementary and Alternative Medicine 5 Patients,” Archives of Internal Medicine, vol. 164, no. 1, pp. 104–105, 2004. [25] S. X. Ma, “Neurobiology of acupuncture: toward CAM,” Evidence-Based Complementary and Alternative Medicine, vol. 1, pp. 41–47, 2004. [26] T. D. Wager, D. J. Scott, and J.-K. Zubieta, “Placebo effects on human µ-opioid activity during pain,” Proceedings of the National Academy of Sciences of the United States of America, vol. 104, no. 26, pp. 11056–11061, 2007. [27] F. Benedetti, A. Pollo, and L. Colloca, “Opioid-mediated placebo responses boost pain endurance and physical per- formance: is it doping in sport competitions?” Journal of Neuroscience, vol. 27, no. 44, pp. 11934–11939, 2007. [28] D. L. Sackett, “Rules of evidence and clinical recommenda- tions on the use of antithrombotic agents,” Chest, vol. 95, pp. 2S–4S, 1989. [29] P. Craig, P. Dieppe, S. Macintyre, S. Michie, I. Nazareth, and M. Petticrew, “Developing and evaluating complex interven- tions: the new Medical Research Council guidance,” British Medical Journal, vol. 337, article a1655, 2008.