Stretching ; Time spent on warming up and cooling down may help improve an athlete's level of performance and accelerate the recovery process needed before and after training or competition. The coaches may wish to encourage the athletes to regard the warm-up and cool down as an essential part of both the training session and competition itself. Remember *** According to periodization and athlete performance coaches have to do the programming. *** Summer 2020 HamidReza Ebrahmi

1. STRETCHING
Stretching is another beneficial activity to include in your resistance
training program. Muscular flexibility and good range of motion of the
joints improve your ability to perform exercises using appropriate form.
Improved flexibility, especially of the lower extremities, also seems to
help limit lower-back injuries.
• agonistic muscles which cause the movement to take place and opposing the
movement and determining the amount of flexibility are the antagonistic
muscles
• the application of force to musculotendinous structures in order to achieve a
change in their length, usually for the purposes of improving joint range of
motion, reducing stiffness or soreness, or preparing for an activity
BM Project © 2020 By HamidReza Ebrahimi

2. TYPES OF STRETCHING
The various techniques of stretching may be grouped as :
• Static
• Dynamic
• Ballistic
• Active
• Passive
• Isometric
• Assisted
• Partner
• PNF technique
BM Project © 2020 By HamidReza Ebrahimi

3. Static stretching :
• Static stretching (isometric contractions) involves gradually easing into the stretch position and
holding the position. The amount of time a static stretch is held depends on your objectives. If it
is part of your cool-down then stretches should be held for 10 seconds, if it is to improve your
range of mobility, then hold the stretch for 30 seconds. Often in static stretching, you are advised
to move further into the stretch position as the stretch sensation subsides.
Dynamic stretching
• Dynamic stretching (isotonic or isokinetic contractions) consists of controlled leg and arm swings
that take you gently to the limits of your range of motion. Start with the movement at half speed
for a couple of repetitions and then gradually work up to full speed.
• The dynamic exercises you incorporate into your warm-up program should be appropriate to the
movements you would experience in your sport/event. In all the exercises, breathe easily while
performing them.
Ballistic stretching
• Ballistic stretching uses the momentum of a moving body or a limb in an attempt to force it
beyond its normal range of motion.
Active stretching
• An active stretch is one where you assume a position and then hold it there with no assistance
other than using the strength of your agonist's muscles. Active stretching is also referred to as
static-active stretching.
Passive stretching
• Passive stretching is also referred to as relaxed stretching, and as static-passive stretching. A
passive stretch is one where you assume a position and hold it with some other part of your
body, or with the assistance of a partner or some other apparatus.
BM Project © 2020 By HamidReza Ebrahimi

4. Isometric stretching
• Isometric stretching is a type of static stretching which involves the resistance of muscle groups
through isometric contractions (tensing) of the stretched muscles.
Assisted stretching
• Assisted stretching involves the assistance of a partner who must fully understand what their role
is otherwise, the risk of injury is high. A partner can be employed to assist with Partner stretches
and Proprioceptive Neuromuscular Facilitation (PNF) techniques.
Partner stretches
• Your partner assists you to maintain the stretch position or helps you ease into the stretch
position as the sensation of stretch subsides. You should aim to be fully relaxed and breathe
easily throughout the exercise. Partner assisted stretches are best used as developmental
exercises, with each stretch being held for thirty seconds.
PNF technique
• Proprioceptive Neuromuscular Facilitation (PNF) involves the use of muscle contraction before
the stretch in an attempt to achieve maximum muscle relaxation.
1. You move into the stretch position so that you feel the stretch sensation
2. Your partner holds the limb in this stretched position
3. You then push against your partner by contracting the antagonistic muscles for 6 to 10
seconds and then relax. During the contraction, your partner aims to resist any movement of
the limb.
4. Your partner then moves the limb further into the stretch until you feel the stretch sensation
5. Go back to 2. (Repeat this procedure 3 or 4 times before the stretch is released.)
BM Project © 2020 By HamidReza Ebrahimi

5. FACTORS LIMITING STRETCHING
Internal influences :
• the type of joint
• the internal resistance within a joint
• bony structures which limit movement
• the temperature of the joint and associated tissues
• the elasticity of muscle tissue, tendons, ligaments and skin
• the ability of a muscle to relax and contract to achieve the greatest range of movement
External influences :
• the temperature of the place where one is training (a warmer temperature is more conducive
to increased flexibility)
• the time of day (most people are more flexible in the afternoon than in the morning)
• the stage in the recovery process of a joint (or muscle) after
• age (pre-adolescents are generally more flexible than adults)
• gender (females are generally more flexible than males)
• the restrictions of any clothing or equipment
• one's ability to perform a particular exercise
• one's commitment to achieving flexibility
BM Project © 2020 By HamidReza Ebrahimi

6. • Question for you :
• Why should you do it ?
• Which method is best ?
• When should they be performed ?
• What order should the flexibility methods be used ?
BM Project © 2020 By HamidReza Ebrahimi

7. CONCLUSION
Static methods produce far fewer instances of muscle soreness, injury and damage to connective
tissues than dynamic or ballistic methods. Static methods are simple to carry out and maybe
conducted virtually anywhere. For maximum gains in flexibility in the shortest possible time, the PNF
technique is the most appropriate. Dynamic - slowed controlled movements through the full range of
the motion - will reduce muscle stiffness. Where the sport or event requires movement, then dynamic
stretches should be employed as part of the warm-up.
Research work by McNair (2000)[1] and Knudson (2001)[2] suggests that the use of dynamic
stretches - slow controlled movements through the full range of motion - are the most appropriate
exercises for the warm-up. By contrast, static stretches are more appropriate for the cool down.
Several studies have shown that static stretching a muscle just before training may decrease its ability
to produce force (Cramer et al. 2004); however, this decrement in performance generally lasts no more
than two to five minutes (Wolfe et al. 2011). Static stretching programs seem most worthwhile when
performed at the end of a workout along with the active cool-down period. As a result, static stretching
may be a useful form of recovery following exercise. it may have several beneficial effects on
recovery. These effects range from decreasing muscle soreness, albeit by a very small amount,
increasing flexibility, increasing local blood flow, and decreasing neural excitability.
BM Project © 2020 By HamidReza Ebrahimi

8. • B.S. in Physical Education from Islamic Azad
University, Isfahan (Khorasgan) Branch.
• M.S. in Exercise Physiology form Islamic Azad
University, Isfahan (Khorasgan) Branch.
• Over 20 years training and 4 years of coaching
experience.
• Certified Strength & Conditioning Specialist From
N.O.C IRAN.
• Certified in artistic gymnastic, aerobic gymnastic,
physical fitness, sport tourism guide, functional
training from NSCA.IR & N.O.C IRAN and more
than tens other.
Contact Information : ihrebr@gmail.com
About the author:
BM Project © 2020 By HamidReza Ebrahimi

9. References:
• BROOK, N. (1990) Mobility Training. 2nd ed. England: ReedPrint Ltd
• MACKENZIE, B. (1997) Flexibility
• MCNAIR, P.J. et al. (2000) Stretching at the ankle joint: viscoelastic responses to holds and continuous
passive motion. Medicine & Science in Sport and Exercise, 33 (3), p. 354-358
• KNUDSON, D et al. (2001) Acute Effects of Stretching Are Not Evident in the Kinematics of the Vertical
Jump, Journal of Strength & Conditioning Research, 15 (1), p. 98-101
• Kinser AM, Ramsey MW, O’Bryant HS, Ayres CA, Sands WA, and Stone MH.(2008) Vibration and
stretching effects on flexibility and explosive strength in young gymnasts. Med Sci Sports Exer 40:
133– 140. http://www.ncbi.nlm.nih.gov/pubmed/18091012
• Armiger P and Martyn MA. (2010) Stretching for Functional Flexibility. Philadelphia, PA: Lippincott
Williams & Wilkins.
• HADDAD, M. et al. (2014) Static stretching can impair explosive performance for at least 24
hours. The Journal of Strength & Conditioning Research, 28 (1), p. 140-146
• Brown, Lee E. (2016) NSCA -National Strength & Conditioning Association-Strength Training 2nd
Edition-Human Kinetics.
• VAN HOOREN, B. and Peake, J.M., (2018) Do we need a cool-down after exercise? A narrative review
of the psychophysiological effects and the effects on performance, injuries and the long-term adaptive
response. Sports Medicine, pp.1-21.
BM Project © 2020 By HamidReza Ebrahimi

10. Thankyou
Athlete
Recovery
Nutrition
Mindfulness
Sleep
strength
conditioning
Be part of the solution not part of the problem.
And so what can you do to make your situation better ? How can you get creative about things ?
BM Project © 2020 By HamidReza Ebrahimi