Journal of the Korean Society of Physical Medicine (대한물리의학회지)

The Korean Society of Physical Medicine (대한물리의학회)
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Changes in Flexibility and Muscle Elasticity according to the Self-Stretching Method of the Hamstring Muscle

뒤넙다리근의 자가 신장운동 방법에 따른 유연성과 근탄성의 변화

  • So-Ra Park (Department of Physical Therapy, Kangwon National University) ;
  • Hyo-Lyun Roh (Department of Physical Therapy, Kangwon National University)
  • 박소라 (강원대학교 물리치료학과) ;
  • 노효련 (강원대학교 물리치료학과)
  • Received : 2023.07.25
  • Accepted : 2023.10.09
  • Published : 2023.11.30
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Abstract

PURPOSE: The purpose of this study was to investigate the changes in the flexibility and elasticity of the muscles when the hamstrings were stretched in one direction and when they were stretched in three directions. METHODS: In this study the subjects were divided into two groups, namely the 'one-direction stretching exercise of the hamstring muscle in the neutral position' group (female: 14 people, male: 14 people) and the 'three-way stretching exercise' group (female: 12 people, male: 14 people) considering the positions of the three hamstring muscles. The elasticity and flexibility of the hamstring muscles were measured before and after the self-extension exercise, and the average value of two measurements was noted. To evaluate the flexibility of the hamstring muscle, a 'sit and reach' test was performed, and muscle elasticity was measured using the MyotonPRO® device. RESULTS: After the stretching exercise, flexibility increased in both groups. In terms of muscle elasticity, the body dynamic strength and resonance frequency of the stretching one-direction stretching group decreased after the stretching exercise. CONCLUSION: To alter the muscle characteristics and increase the flexibility when performing a stretching exercise, selecting and stretching only one muscle with the lowest range of motion yields effective results. The ideal technique to be employed appears to be to stretch the entire hamstring muscle in one direction from the neutral position.

Keywords

References

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