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The Influence of Combined Exercise Training with and without Blood Flow Restriction on Physical Performance and Balance in Elderly Females

복합운동에 혈류제한 적용과 비적용이 여성노인들의 운동수행능력과 평형성에 미치는 영향

  • Kim, Daeyeol (Department of Physical Education, Chonnam National University) ;
  • Kang, Hyo-Young (Department of Physical Educationn, Gwangju National University of Education) ;
  • Park, Hyeok (Department of Living Physical Education, Chunnam Techno University)
  • 김대열 (전남대학교 체육교육과) ;
  • 강효영 (광주교육대학교 체육교육과) ;
  • 박혁 (전남과학대학교 생활체육과)
  • Received : 2020.11.10
  • Accepted : 2021.01.08
  • Published : 2021.01.31

Abstract

The goal of this study was to investigate the influence of exercise training with or without blood flow restriction (BFR) on physical performance and balance in elderly females. Participants (N = 43) were randomly divided into combined exercise with BFR group (n = 14, EX-BFR), only combine exercise group (n =14, EX) or a non-exercise control group (n = 15, CON). Both EX-BFR and EX groups had completed exercise training for 12 weeks. During the training period, the CON group maintained their normal lives. After baseline tests, two-way repeated measures ANOVA with contrast testing was conducted using SPSS 22.0. Study results found that physical performance and balance in both EX-BFR and EX groups were significantly improved, and fall index in both EX-BFR and EX groups were significantly decreased. There were no changes in the CON group. In addition, the % change and effect size of all variables in the EX-BFR group were larger than the EX group. So, the results showed that the EX-BFR group had performed more intense exercise caused by restricted blood flow during the training period compared to the EX group. Thus, exercise with BFR training may additionally influence physical performance and balance in elderly females.

본 연구는 12주간 복합운동 중 혈류제한을 적용한 것과 적용하지 않은 것이 65세 이상 여성노인들의 운동수행능력(심폐지구력, 하체근력)과 평형성(동적평형성, 낙상위험지수)에 미치는 영향을 알아보기 위해 실시하였다. 연구대상자는 혈류제한을 통한 복합운동(14명), 혈류제한을 하지 않은 복합운동(14명)과 통제집단(15명)으로 총 43명이 연구에 참여하였다. 혈류제한 복합운동 그룹과 복합운동 그룹 모두 주 3회 총 12주 동안 복합운동을 실시하였고, 통제집단은 훈련기간 동안 일상적인 생활을 하였다. 본 연구의 자료처리는 SPSS/ver22를 사용하였으며 사전값의 동질성 검사 후 이원반복측정분산분석(Two-way Repeated Measures ANOVA)과 대비검증(contrast)을 이용하여 분석하였고, 모든 자료의 유의수준은 α=.05로 설정하였다. 연구결과 혈류제한을 적용한 복합운동 집단과 적용하지 않은 복합운동 집단의 운동수행능력(심폐지구력, 하체근력)과 평형성(동적평형성)은 유의하게 증가하였고, 두 집단 모두 낙상위험지수는 유의하게 감소하였다. 하지만 통제집단에서는 유의한 변화가 없었다. 추가적으로 두 운동집단 중 혈류제한을 적용한 복합운동 집단이 사전과 사후 변화량(%△)과 효과크기(effect size)가 일반복합운동 집단 보다 높이 나왔다. 이는 혈류제한을 적용한 복합운동집단이 혈류제한을 적용하지 않은 복합운동보다 운동수행력과 평형성에 더욱 긍정적인 효과를 나타냈다.

Keywords

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