|
|
|
±èÇöÈñ ( Kim Hyun-Hee ) - »ïÀ°´ëÇб³ ¹°¸®Ä¡·áÇаú
¼Ûâȣ ( Song Chang-Ho ) - »ïÀ°´ëÇб³ ¹°¸®Ä¡·áÇаú
|
|
Abstract
|
|
|
|
Purpose: The purpose of this study was to examine EMG activities and VMO/VL ratio of the vastus medialis oblique, vastus lateralis, and rectus femoris during squat exercise (knee angle: 15, 45, and 60 degrees; tibial rotation: internal rotation, neutral, and external rotation).
Methods: Twelve subjects performed squat exercise at each knee angle and tibial rotation while electromyographic (EMG) activity was collected. Statistical analysis consisted of two-way repeated measures analysis of variance with post hoc analysis.
Results: There were significant main effects of knee angles and foot positions and interaction effect on EMG activities of vastuslateralis. oblique and vastuslateralis. VMO/VL ratios were significantly different by tibial rotations and there was an interaction effect. A neutral position produced significantly more VMO/VL activity ratio than that from internally rotated position and externally rotated position at 60 degrees.
Conclusion: Considering the interaction effects for EMG activity across quadriceps muscles tested, the 60 degrees knee angle with a neutral foot position may provide the most effective condition for patients with acute patellofemoral syndrome.
|
|
KeyWords
|
|
±ÙÀüµµ, ³Ò´Ù¸®³×°¥·¡±Ù, ¹«¸³Ò´Ù¸®ÅëÁõÁõÈıº
Electromyography, Quadriceps Muscle, Patellofemoral Pain Syndrome
|
|
¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸
|
|
|
|
µîÀçÀú³Î Á¤º¸
|
|
|
|
|
|