A physical education-based stretching program performed once a week also improves hamstring extensibility in schoolchildren: a clusterrandomized controlled trial
Introduction: physical education teachers are required to carry out intervention programs for students to achieve health-enhancing flexibility levels. Unfortunately, to our knowledge, there are no studies examining the effect of a stretching program carried out only once a week on schoolchildren. Objectives: the purpose of the present study was to compare the effects of a short-term stretching intervention program performed once and twice a week on hamstring extensibility among schoolchildren in the physical education setting. Methods: a sample of 180 high school students aged 12-14 years old was randomly assigned (by natural groups) to a control group, experimental group 1 and experimental group 2. During physical education classes, experimental group students performed a stretching program for eight weeks. The experimental group 1 and 2 performed the stretching program once and twice a week, respectively. Results: the analysis of variance results showed that the students of both experimental groups improved statistically significantly their hamstring extensibility when compared with the control group students (p < 0.01). Nevertheless, no statistically significant differences between the two experimental groups were found (p > 0.05). Conclusions: a short-term stretching program performed only once a week improves hamstring extensibility in schoolchildren. When the stretching program is performed twice a week, the improvement in students´ hamstring extensibility is not statistically higher.
Main Authors: | Mayorga-Vega,Daniel, Merino-Marban,Rafael, Real,Javier, Viciana,Jesús |
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Format: | Digital revista |
Language: | English |
Published: |
Grupo Arán
2015
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Online Access: | http://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S0212-16112015001000043 |
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