Comparison of isokinetic muscle strength and muscle power by types of
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| Authors: | Young-Je Sim Yong-Hyun Byun Jaehyun Yoo |
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| Affiliation: | 1) Department of Physical Education, Kunsan National University, Republic of Korea;2) Department of Sports Medicine, Graduate School of Sports Science, Dankook University, Republic of Korea;3) Department of Health Management, Sahmyook University, Republic of Korea |
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| Abstract: | [Purpose] The purpose of this study was to clarify the influence of static stretching atwarm-up on the isokinetic muscle torque (at 60°/sec) and muscle power (at 180°/sec) of theflexor muscle and extensor muscle of the knee joint. [Subjects and Methods] The subjectsof this study were 10 healthy students with no medically specific findings. The warm-upgroup and warm-up with stretching group performed their respective warm-up prior to theisokinetic muscle torque evaluation of the knee joint. One-way ANOVA was performed byrandomized block design for each variable. [Results] The results were as follows: First,the flexor peak torque and extensor peak torque of the knee joint tended to decrease at60°/sec in the warm-up with stretching group compared with the control group and warm-upgroup, but without statistical significance. Second, extensor power at 180°/sec was alsonot statistically significant. However, it was found that flexor power increasedsignificantly in the warm-up with stretching group at 180°/sec compared with the controlgroup and warm-up group in which stretching was not performed. [Conclusion] Therefore, itis considered that in healthy adults, warm-up including two sets of stretching for 20seconds per muscle group does not decrease muscle strength and muscle power.Key words: Stretching, Warm-up, Muscle power |
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