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J Phys Ther Sci. 2015 May;27(5):1491-4. doi: 10.1589/jpts.27.1491. Epub 2015 May 26.

Comparison of isokinetic muscle strength and muscle power by types of warm-up.

Author information

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.

Abstract

[Purpose] The purpose of this study was to clarify the influence of static stretching at warm-up on the isokinetic muscle torque (at 60°/sec) and muscle power (at 180°/sec) of the flexor muscle and extensor muscle of the knee joint. [Subjects and Methods] The subjects of this study were 10 healthy students with no medically specific findings. The warm-up group and warm-up with stretching group performed their respective warm-up prior to the isokinetic muscle torque evaluation of the knee joint. One-way ANOVA was performed by randomized 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 at 60°/sec in the warm-up with stretching group compared with the control group and warm-up group, but without statistical significance. Second, extensor power at 180°/sec was also not statistically significant. However, it was found that flexor power increased significantly in the warm-up with stretching group at 180°/sec compared with the control group and warm-up group in which stretching was not performed. [Conclusion] Therefore, it is considered that in healthy adults, warm-up including two sets of stretching for 20 seconds per muscle group does not decrease muscle strength and muscle power.

KEYWORDS:

Muscle power; Stretching; Warm-up

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