The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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Comparison of Muscle Activities of Trunk and Lower Limb during Bow and Squat Exercises

  • Shon, Ji-won (Department of Physical Therapy, Graduate School, Hanseo University) ;
  • Lim, Hyung-won (Department of Physical Therapy, Dankook University)
  • Received : 2016.03.22
  • Accepted : 2016.04.18
  • Published : 2016.04.30
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Abstract

Purpose: The purposes of this study were to examine muscle activities of trunk and lower limb during squat and 108 bows exercises and to provide objective data for establishing a training method for improving muscle strength of trunk and lower limb. Methods: Twenty normal healthy subjects participated in this study. Each exercise was divided into five periods. Muscle activities of trunk and lower limb in each period of both 108 bows and squat exercises were measured and analyzed by independent t-test. Results: In starting, mid-flexion, mid-extension, and end period muscle activities obtained from 108 bows exercise were significantly higher than those from squat exercise. However, in the final flexion period, muscle activities of multifidus, elector spinae, rectus femoris, biceps femoris, and tibialis anterior from squat exercise were significantly higher than those from bow exercise. Conclusion: In this study, high muscle activities in most muscles of trunk and lower limb were observed from all periods of 108 bows exercise except the final flexion period. Therefore, it is likely that 108 bows exercise rather than squat exercise is more suitable for high strength exercise to improve muscle strength of trunk and lower limb and thus will be applicable for strengthening muscles of trunk and lower limb of patients.

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