Effects of the Visual Analog Scale and Knee Function Index on the Muscle Strength and Muscle Endurance of the Knees of Male National Field-Hockey Athletes

국가대표 남자 필드하키 선수들의 무릎의 시각적 상사 척도와 무릎 기능평가가 무릎의 근력 및 근지구력에 미치는 영향

  • Kim, Hyun-Chul (Department of Medicine and Science, Korean Sport & Olympic Committee) ;
  • Park, Ki-Jun (Department of Physical Therapy, Sangji University)
  • Received : 2020.09.26
  • Accepted : 2020.12.30
  • Published : 2021.02.28


PURPOSE: This study examined the effects of the Visual Analog Scale (VAS) and knee function index on the knee strength and endurance in the national male field-hockey athletes. METHODS: Twenty-four male field-hockey athletes with a painful knee who trained at the national training center in 2019 were enrolled. The VAS and knee function index questionnaire were used to evaluate the degree of pain and functional state of the knee. The muscle strength and endurance of the knee were measured by Biodex (System 4, USA). The Pearson product moment correlation was performed to examine the effects of the VAS and knee function index the of knee on the strength and endurance. In addition, the VAS and knee function index and muscle strength and muscle endurance were examined to determine the relationship using Simple Linear Regression. The statistical significance level was α=.05. RESULTS: An analysis of the correlation between VAS and knee function index and muscle strength and muscle endurance revealed the VAS and knee function index to be statistically significant (r = .700). In addition, the extensor muscle strength, knee VAS (r = -.457), and knee function index (r = -.414) were also statistically significant. A 1-point increase in the VAS and knee function index was associated with an approximately 9.881 and 1.006 extensor muscle strength. CONCLUSION: The VAS and knee function index of field-hockey athletes are related to the strength of the knee extensors. Therefore, field-hockey athletes should develop a program to strengthen the extensor muscle strength of the knee.


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