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ERIC Number: EJ870170
Record Type: Journal
Publication Date: 2009-Jun
Pages: 5
Abstractor: As Provided
Reference Count: 28
ISSN: ISSN-0270-1367
A Single 30-s Stretch Is Sufficient to Inhibit Maximal Voluntary Strength
Winchester, Jason B.; Nelson, Arnold G.; Kokkonen, Joke
Research Quarterly for Exercise and Sport, v80 n2 p257-261 Jun 2009
While it has been well established that an acute stretching program can inhibit maximal muscle performance, the amount of stretching needed to produce the deleterious response is unknown. Therefore this study examined the dose-response relationship between acute stretching and strength inhibition. Eighteen college students performed a one repetition maximum (1-RM) test of knee-flexion following 0, 1, 2, 3, 4, 5, or 6 30-s bouts of hamstring stretching held at the limit of toleration. All seven dose variations were done by each subject, with each variation done on a separate day. One week separated each test, and the order of the stretch variations was balanced across the seven testing days. Stretching significantly (p less than 0.05) reduced 1-RM after one 30-s stretch (5.4%), and continued to decrease 1-RM up to and including six 30-s stretches (12.4%). A single 30-s stretch, if held at the limit of toleration, is sufficient to cause an inhibition in a person's 1-RM. Additional bouts of stretching will further decrease the 1-RM, suggesting that multiple mechanisms may be involved in stretch-induced strength inhibition. (Contains 3 tables.)
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A