- Volume 10 Issue 11
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Change of isometric contractile force and muscle activity applying ice and hot according to the time on biceps brachii muscle
온열 및 한랭의 적용시간에 따른 상완이두근의 등척성 수축력과 근활성도 변화
- Received : 2012.10.26
- Accepted : 2012.11.14
- Published : 2012.12.31
This study has investigated the effect of isometric contractile force and muscle activity applying ice and hot according to the time from the biceps brachii muscle. In this study, 20 university students participants without musculoskeletal and neurological disorders. By applying a hot pack 5 min, 10 min, 20 min and 30 min respectively and ice pack for 5 min, 10 min, and 20 min respectively. After that measurement are skin temperature, contractile force and muscle activity. Skin temperature of the hot and cold 5 min applied that rapidly changing. Increasing the time it takes to apply a variance has been reduced(p<.001). Isometric contractile force was not statistically significant but highest when applying the hot pack 5 minutes and lowest when applying the hot pack 30 minutes(p<.001). Muscle activity and median frequency was highest when applying the hot pack 5 minutes. To analyze the above results, it was found that isometric contractile force and muscle activity changed according to the applying time. These result lead us to the conclusion that this study will be more evidence for changes in muscle contraction to apply hot pack and ice pack on clinic.