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The Effects of Hip Angle on Muscle Activity of Quadriceps during Q-Setting Exercise
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ÀÌ°Çö(Lee Keon-Cheol) - °æ³²Á¤º¸´ëÇб³ ¹°¸®Ä¡·á°ú
±èÁ¾¼ö(Kim Jong-Su) - °æ³²Á¤º¸´ëÇб³ ¹°¸®Ä¡·á°ú
±è¼ºÈÆ(Kim Sung-Hun) - °æ³²Á¤º¸´ëÇб³ ¹°¸®Ä¡·á°ú
±è¸í±Ù(Kim Myung-Keun) - °æ³²Á¤º¸´ëÇб³ ¹°¸®Ä¡·á°ú
±èÁö¿ø(Kim Ji-Won) - °æ³²Á¤º¸´ëÇб³ ¹°¸®Ä¡·á°ú
Ãß¼³Èñ(Chu Seol-Hui) - °æ³²Á¤º¸´ëÇб³ ¹°¸®Ä¡·á°ú
±èº¸¶ó(Kim Bo-RA) - °æ³²Á¤º¸´ëÇб³ ¹°¸®Ä¡·á°ú
Abstract
Purpose : The aim of this study was to find out differences between muscle activity of quadriceps according to hip angle.
Method : 40 healthy adults produced maximum isometric muscle contraction of quadriceps femoris and each part of the quadriceps femoris were measured with a surface EMG in hip joint angle of 90¡Æ, 135¡Æ, 180¡Æ.
Result : There was no significant difference between muscle activity of vastus medialis and lateralis according to hip angle. But there was significant difference in muscle activity of rectus femoris and the muscle activity was maximum at 135 degrees of hip angle.
Conclusion : In conclusion, maximum muscle activation of rectus femoris is affected by hip angle, and the findings from this study may be helpful for physical therapists in selecting hip position when instructing patients to do Q-setting exercise. So, we suggest that patients perform Q-setting exercise at 135 degrees of hip angle for the best result.
Å°¿öµå
muscle activity, hip angle, quadriceps setting exercise
KMID :
1035420140020010015
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