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J Phys Ther Sci. 2013 Sep;25(9):1093-5. doi: 10.1589/jpts.25.1093. Epub 2013 Oct 20.

Effects of vibratory stimulations on maximal voluntary isometric contraction from delayed onset muscle soreness.

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1
Department of Physical Therapy, Daegu University Graduate School of Physical Therapy, Daegu University.

Abstract

[Purpose] The aim of this study was to investigate the effect of vibratory stimulation on maximal voluntary isometric contraction (MVIC) from delayed onset muscle soreness (DOMS). [Subjects] Sixty healthy adults participated in this study. The exclusion criteria were orthopedic or neurologic disease. [Methods] The researchers induced DOMS in the musculus extensor carpi radialis longus of each participant. Subjects in the control group received no treatment. The ultrasound group received ultrasound treatment (intensity, 1.0 W/cm(2;) frequency 1 MHz; time, 10 minutes). The vibration group received vibration stimulation (frequency, 20 MHz; time, 10 minutes). Maximal voluntary isometric contraction (MVIC) was recorded at baseline, immediately after exercise, and 24, 48, and 72 hours after exercise. [Results] MVIC measurements showed statistically significant differences in the vibration group compared with the control group. [Conclusion] Vibratory stimulation had a positive effect on recovery of muscle function from DOMS.

KEYWORDS:

Isometric contraction; Ultrasound; Vibratory stimulation

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