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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

  • Journal of the Korean Society of Physical Medicine
  • Abbr : J Korean Soc Phys Med
  • 2021, 16(1), pp.103-109
  • Publisher : The Korean Society of Physical Medicine
  • Research Area : Medicine and Pharmacy > Physical Therapy > Other physical therapy
  • Received : September 26, 2020
  • Accepted : December 30, 2020
  • Published : February 28, 2021

Hyun-Chul Kim 1 Ki-Jun Park 2

1대한체육회 의과학부
2가야대학교

Accredited

ABSTRACT

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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