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Changes in Flexibility and Muscle Elasticity according to the Self-Stretching Method of the Hamstring Muscle

  • Journal of the Korean Society of Physical Medicine
  • Abbr : J Korean Soc Phys Med
  • 2023, 18(4), pp.77-87
  • Publisher : The Korean Society of Physical Medicine
  • Research Area : Medicine and Pharmacy > Physical Therapy > Other physical therapy
  • Received : July 25, 2023
  • Accepted : October 9, 2023
  • Published : November 30, 2023

박소라 1 RO, HYO-LYUN 2

1강원대학교 물리치료학과
2강원대학교

Accredited

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.

Citation status

* References for papers published after 2023 are currently being built.