Short Durations of Static Stretching when Combined with Dynamic Stretching do not Impair Repeated Sprints and Agility
Del P. Wong1,, Anis Chaouachi2, Patrick W.C. Lau3, David G. Behm4
Author Information
1 Department of Health and Physical Education, The Hong Kong Institute of Education, Hong Kong
2 Tunisian Research Laboratory “Sport Performance Optimisation”, National Center of Medicine and Science in Sports, Tunis, Tunisia
3 Department of Physical Education, Hong Kong Baptist University, Hong Kong
4 School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John’s Newfoundland, Canada, A1M 3L8
Del P. Wong ✉ Address: Department of Health and Physical Education, The Hong Kong Institute of Education, Tai Po, Hong Kong. Email: delwong@alumni.cuhk.net
Publish Date
Received: 25-02-2011 Accepted: 10-05-2011 Published (online): 01-06-2011
Del P. Wong, Anis Chaouachi, Patrick W.C. Lau, David G. Behm. (2011) Short Durations of Static Stretching when Combined with Dynamic Stretching do not Impair Repeated Sprints and Agility. Journal of Sports Science and Medicine(10), 408 - 416.
Del P. Wong, Anis Chaouachi, Patrick W.C. Lau, David G. Behm. (2011) Short Durations of Static Stretching when Combined with Dynamic Stretching do not Impair Repeated Sprints and Agility. Journal of Sports Science and Medicine(10), 408 - 416.
This study aimed to compare the effect of different static stretching durations followed by dynamic stretching on repeated sprint ability (RSA) and change of direction (COD). Twenty-five participants performed the RSA and COD tests in a randomized order. After a 5 min aerobic warm up, participants performed one of the three static stretching protocols of 30 s, 60 s or 90 s total duration (3 stretches x 10 s, 20 s or 30 s). Three dynamic stretching exercises of 30 s duration were then performed (90 s total). Sit-and-reach flexibility tests were conducted before the aerobic warm up, after the combined static and dynamic stretching, and post- RSA/COD test. The duration of static stretching had a positive effect on flexibility with 36.3% and 85.6% greater sit-and-reach scores with the 60 s and 90 s static stretching conditions respectively than with the 30 s condition (p ≤ 0.001). However there were no significant differences in RSA and COD performance between the 3 stretching conditions. The lack of change in RSA and COD might be attributed to a counterbalancing of static and dynamic stretching effects. Furthermore, the short duration (≤ 90 s) static stretching may not have provided sufficient stimulus to elicit performance impairments.
The duration of combined static and dynamic stretching had a positive effect on flexibility with 36.3% and 85.6% greater sit and reach scores with the 60 s and 90 s static stretching conditions respectively than with the 30 s condition (p ≤ 0.001).
No significant differences in RSA and COD between the 3 stretching conditions.
The lack of change in RSA and COD might be attributed to a counterbalancing of static and dynamic stretching effects.
The short duration (≤ 90 s) static stretching may not have provided sufficient stimulus to elicit performance impairments.
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