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KMID : 1002720080060020011
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Journal of Korean Proprioceptive Neuromuscular Facilitation Association
2008 Volume.6 No. 2 p.11 ~ p.18
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The Effects of Hold-Relax and Active Stretching on Recoveries of Muscle Fatigue after Computer Work
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Lee Hyun-Ok
Heo Seong-Yong
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Abstract
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Purpose：The purpose of this study was to identify that the effect of hold-relax and active stretching on recoveries of upper trapezius and sternocleidomastoid muscle fatigue after computer work.
Methods：This study was conducted by 30 volunteer at the age of 23～33(resting group=10, hold-relax group=10, active stretching group=10). The muscle fatigue measured by tracing the median frequency(MDF) decrement from power spectrum analyses of EMG signals and the data were analyzed repeated ANOVA.
Result：In case of upper trapezius, there was significant difference in group Ⅰ,Ⅱ and group Ⅱ, Ⅲ. In case of sternocleidomastoid, there was significant difference in group Ⅰ,Ⅱ and group Ⅰ,Ⅲ.
Conclusion：The active stretching was effective for sternocleidomastoid and the hold-relax was effective for upper trapezius and sternocleidomastoid. The hold-relax was effective better than active stretching on recoveries of muscle fatigue.
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KEYWORD
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Muscle fatigue, Median frequency, Active stretching, Hold-relax
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