Impact of Static Stretching on Performance: Difference between revisions

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<div class="editorbox"> '''Original Editor '''- [[User:Ahmed Nasr|Ahmed Nasr]] '''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}}</div>
<div class="editorbox"> '''Original Editor '''- [[User:Ahmed Nasr|Ahmed Nasr]] '''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}}</div>
[[File:A woman doing static stretching.jpg|thumb|372x372px|A woman doing static stretching]]


== Definition/Description ==
== Definition/Description ==
Static stretching is a type of stretching exercises in which elongation of muscle with application of low force and long duration (usually 30 sec). Static stretching has a relaxation,elongation effect on muscle,improving range of motion (ROM) , decreasing musculotendinous stiffness and also reduce the risk of acute muscle strain injuries.<ref name=":0">Micheal A. ,Scott C[https://books.google.com.eg/books/about/NASM_Essentials_of_Corrective_Exercise_T.html?id=tZGIM2xzeSwC&redir_esc=y . NASM's Essentials of Corrective Exercise Training] . philadelphia : Wolters Kluwer Health/Lippincott Williams & Wilkins .2011.</ref><ref>Kay AD, Blazevich AJ . [https://insights.ovid.com/pubmed?pmid=21659901 Effect of acute static stretch on maximal muscle performance: a systematic review.] Medicine & Science in Sports & Exercise.Jan 2012 : 44(1) :154-164.</ref>
[[File:A woman doing static stretching.jpg|thumb|372x372px|A woman doing static stretching]]Static stretching is a type of stretching exercises in which [[muscle]] is held in the same elongated position without movement. Static stretching has a relaxation and elongation effect on muscle which increases [[Range of Motion|range of motion]] (ROM), decreases musculotendinous stiffness and also reduce risk of acute muscle strain injuries.<ref name=":0">Micheal A. ,Scott C[https://books.google.com.eg/books/about/NASM_Essentials_of_Corrective_Exercise_T.html?id=tZGIM2xzeSwC&redir_esc=y . NASM's Essentials of Corrective Exercise Training] . philadelphia : Wolters Kluwer Health/Lippincott Williams & Wilkins .2011.</ref><ref>Kay AD, Blazevich AJ . [https://insights.ovid.com/pubmed?pmid=21659901 Effect of acute static stretch on maximal muscle performance: a systematic review.] Medicine & Science in Sports & Exercise.Jan 2012 : 44(1) :154-164.</ref> It is a slow, controlled movement with emphasis on postural awareness and body alignment.


=== Impact of Stretching on Muscle performance ===
=== Impact of Stretching on Muscle performance ===
It is a traditional practice to perform static stretching exercises before the main exercise session or main sports events in order to improve muscle performance and minimizing risk of injury. But the recent reviews found that stretching immediately prior to exercise does not prevent injury and can lead to detrimental effect on muscle performance. Therefore performing static stretching before main exercise session or main sport events can lead to decrease in the performance in these subsequent events.<ref name=":1">I Shrier . [https://insights.ovid.com/pubmed?pmid=15377965 Does Stretching Improve Performance?: A Systematic and Critical Review of the Literature.] Clinical Journal of Sport Medicine:2004 Sep :14(5) : 267-273.</ref><ref name=":2">Rubini EC , Costa AL , Gomes PS .[https://link.springer.com/article/10.2165%2F00007256-200737030-00003 The Effects of Stretching on Strength Performance .] Sports Medicine. <time>March 2007 :</time>37(3): 213-24 ·</ref>
Traditionally, static stretching exercises were advocated to be performed before exercise sessions or sports events as a warm up, in order to improve muscle performance and minimize risk of injury. However, recent reviews have found that stretching immediately prior to exercise does not prevent injury and can lead to detrimental effect on muscle performance. Therefore performing static stretching before the main exercise session or main sport events can lead to decrease in performance in these subsequent events.<ref name=":1">I Shrier . [https://insights.ovid.com/pubmed?pmid=15377965 Does Stretching Improve Performance?: A Systematic and Critical Review of the Literature.] Clinical Journal of Sport Medicine:2004 Sep :14(5) : 267-273.</ref><ref name=":2">Rubini EC , Costa AL , Gomes PS .[https://link.springer.com/article/10.2165%2F00007256-200737030-00003 The Effects of Stretching on Strength Performance .] Sports Medicine. <time>March 2007 :</time>37(3): 213-24 ·</ref>
 
'''However, new studies suggest that there is strong evidence suggesting static stretches of below 60 seconds cause only trivial negative effects on subsequent strength and power performances'''<ref>Chaabene H, Behm DG, Negra Y, Granacher U. Acute Effects of Static Stretching on Muscle Strength and Power: An Attempt to Clarify Previous Caveats. Front Physiol. 2019 Nov 29;10:1468. doi: 10.3389/fphys.2019.01468. PMID: 31849713; PMCID: [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6895680/ PMC6895680.]</ref>'''.''' Therefore, coaches are advised to consider short-duration StS as an important warm-up component in recreational sports due to its potentially positive effect on flexibility and injury prevention. Minimal performance differences can have a major impact on athletes’ success in competition, and static stretching should be carefully considered for this population.


To understand how static stretching can lead to decline muscle performance we have to understand the '''acute effect of static stretching''' and the '''effect of regular stretching.'''
To understand how static stretching can lead to decline muscle performance we have to understand the acute effect of static stretching and the effect of regular stretching.


====  Acute Effects of Static Stretching on Muscle: ====
====  Acute Effects of Static Stretching on Muscle: ====
* Decreases the visco-elastic behavior of muscle and tendon only on the short term with no long term effect .<ref name=":1" />
* Decreases the visco-elastic behavior of muscle and tendon only on the short term with no long term effect .<ref name=":1" />
* Decreases motor neuron excitability through inhibitory effect from the Golgi Tendon organ and by activation of Renshaw recurrent loop (recurrent inhibition).<ref name=":0" />
* Decreases [[Motor Neurone|motor neuron]] excitability through inhibitory effect from the [[Golgi Tendon Organ|Golgi Tendon organ]] and by activation of Renshaw recurrent loop (recurrent inhibition).<ref name=":0" />
* Decreases in the activity of motor unit.<ref name=":2" />
* Decreases the activity of motor unit.<ref name=":2" />
* Decreases the activity of muscle spindles ,which results in decreasing the activity of stretch reflex. <ref name=":2" /><ref name=":0" />
* Decreases the activity of [[muscle spindles]] ,which results in decreasing the activity of stretch [[Reflexes|reflex]]. <ref name=":2" /><ref name=":0" />
* Decreases in sensitivity of nociceptors and joint receptors which are fundamental mechanisms for the protection of structures involved in motion.<ref name=":2" />
* Decreases in sensitivity of [[Nociception|nociceptors]] and joint receptors which are fundamental mechanisms for the protection of structures involved in motion.<ref name=":2" />
* Facilitates types III and IV joint receptors sending inhibitory drive to the α motoneuron pool.<ref name=":2" />
* Facilitates types III and IV joint receptors sending inhibitory drive to the α motoneuron pool.<ref name=":2" />
Collectively all these acute changes in the muscle lead to decrease in force production ,performance and increasing in the risk of injury .
Collectively all these acute changes in the muscle lead to decrease in force production, performance and an increase in the risk of injury.


====  Effect of Regular Static Stretching on Muscle: ====
====  Effect of Regular Static Stretching on Muscle: ====
Regular static stretching exercise shown that it improves force and performance in activities.it`s underlying  mechanism is that regular stretching induces muscle hypertrophy.It`s shown that If stretching a muscle group for 30 to 60 s/d over months results in hypertrophy<ref name=":1" />
Regular static stretching exercise shown that it improves force and performance in activities. Its underlying  mechanism is that regular stretching induces muscle hypertrophy. It is shown that if stretching a muscle group for 30 to 60 s/d over months results in hypertrophy<ref name=":1" />.


== Summary  ==
== Summary  ==
The evidence shows that performing static stretching exercises  before sports activities lead to decrease the performance and increasing the risk of injury .while in the other hand performing regular stretching exercises lead to improve in force production and performance in all activities<ref name=":1" />
The evidence shows that performing static stretching exercises  before sports activities lead to decreased performance and increase the risk of injury, while on the other hand, performing regular stretching exercises lead to improved force production and performance in all activities<ref name=":1" />


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Latest revision as of 04:44, 13 December 2023

Definition/Description[edit | edit source]

A woman doing static stretching

Static stretching is a type of stretching exercises in which muscle is held in the same elongated position without movement. Static stretching has a relaxation and elongation effect on muscle which increases range of motion (ROM), decreases musculotendinous stiffness and also reduce risk of acute muscle strain injuries.[1][2] It is a slow, controlled movement with emphasis on postural awareness and body alignment.

Impact of Stretching on Muscle performance[edit | edit source]

Traditionally, static stretching exercises were advocated to be performed before exercise sessions or sports events as a warm up, in order to improve muscle performance and minimize risk of injury. However, recent reviews have found that stretching immediately prior to exercise does not prevent injury and can lead to detrimental effect on muscle performance. Therefore performing static stretching before the main exercise session or main sport events can lead to decrease in performance in these subsequent events.[3][4]

However, new studies suggest that there is strong evidence suggesting static stretches of below 60 seconds cause only trivial negative effects on subsequent strength and power performances[5]. Therefore, coaches are advised to consider short-duration StS as an important warm-up component in recreational sports due to its potentially positive effect on flexibility and injury prevention. Minimal performance differences can have a major impact on athletes’ success in competition, and static stretching should be carefully considered for this population.

To understand how static stretching can lead to decline muscle performance we have to understand the acute effect of static stretching and the effect of regular stretching.

Acute Effects of Static Stretching on Muscle:[edit | edit source]

  • Decreases the visco-elastic behavior of muscle and tendon only on the short term with no long term effect .[3]
  • Decreases motor neuron excitability through inhibitory effect from the Golgi Tendon organ and by activation of Renshaw recurrent loop (recurrent inhibition).[1]
  • Decreases the activity of motor unit.[4]
  • Decreases the activity of muscle spindles ,which results in decreasing the activity of stretch reflex. [4][1]
  • Decreases in sensitivity of nociceptors and joint receptors which are fundamental mechanisms for the protection of structures involved in motion.[4]
  • Facilitates types III and IV joint receptors sending inhibitory drive to the α motoneuron pool.[4]

Collectively all these acute changes in the muscle lead to decrease in force production, performance and an increase in the risk of injury.

Effect of Regular Static Stretching on Muscle:[edit | edit source]

Regular static stretching exercise shown that it improves force and performance in activities. Its underlying mechanism is that regular stretching induces muscle hypertrophy. It is shown that if stretching a muscle group for 30 to 60 s/d over months results in hypertrophy[3].

Summary[edit | edit source]

The evidence shows that performing static stretching exercises before sports activities lead to decreased performance and increase the risk of injury, while on the other hand, performing regular stretching exercises lead to improved force production and performance in all activities[3]

References[edit | edit source]

  1. 1.0 1.1 1.2 Micheal A. ,Scott C. NASM's Essentials of Corrective Exercise Training . philadelphia : Wolters Kluwer Health/Lippincott Williams & Wilkins .2011.
  2. Kay AD, Blazevich AJ . Effect of acute static stretch on maximal muscle performance: a systematic review. Medicine & Science in Sports & Exercise.Jan 2012 : 44(1) :154-164.
  3. 3.0 3.1 3.2 3.3 I Shrier . Does Stretching Improve Performance?: A Systematic and Critical Review of the Literature. Clinical Journal of Sport Medicine:2004 Sep :14(5) : 267-273.
  4. 4.0 4.1 4.2 4.3 4.4 Rubini EC , Costa AL , Gomes PS .The Effects of Stretching on Strength Performance . Sports Medicine. 37(3): 213-24 ·
  5. Chaabene H, Behm DG, Negra Y, Granacher U. Acute Effects of Static Stretching on Muscle Strength and Power: An Attempt to Clarify Previous Caveats. Front Physiol. 2019 Nov 29;10:1468. doi: 10.3389/fphys.2019.01468. PMID: 31849713; PMCID: PMC6895680.