일회적 중등도 운동이 지적장애인의 작업기억에 의존한 걷기 정확성에 미치는 영향
The Effect of Acute Moderate Exercise on Accuracy of Walking Performance Depending on Working Memory in individuals with Intellectual Disability
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본 연구의 목적은 일회적 중등도 운동이 작업기억에 의존한 걷기 기억의 정확성에 미치는 영향을 검증하는 것이었다. 이를 위해 충남 소재 복지관 소속 2-3급 지적장애인 16명(실험: 8명, 통제: 8명)이 실험에 참가하였다. 실험은 사전과 사후 2회, 각 회마다 2차에 걸쳐 진행되었다. 실험집단은 카보넨 공식을 이용하여 50%의 운동 강도로 20분간 달리기를 하였고, 달리기 종료 30분 후에 실험이 진행되었다. 1차 실험은 3, 5, 7m의 목표지점까지 눈감고 걷는 과제였고, 2차 실험은 목표를 확인하고 10초간 암산을 한 후 걷는 과제를 수행하였다. 걷기의 오차가 기록되고 절대오차와 가변오차로 변환되어 분석되었다. 그 결과 목표제시 직후 걷기와 목표제시 후 암산과제 모두에서 일회적 중등도 운동은 지적장애인의 걷기 수행의 정확성과 일관성을 증진시키는 것으로 나타났다. 일회적 중등도 운동이 작업기억의 어느 과정에 영향을 미칠 수 있는지에 대해 논의하였고, 결론적으로 일회적 운동은 각성을 증가시켜 인지기능을 최적화하는 것으로 생각된다.
Abstract
The purpose of this study was to verify the acute moderate exercise on accuracy of walking depending on working memory in individuals with Intellectual disability of Participants were 16 individuals(experimental group; 8, control group; 8) with 2-3 levels of intellectual disabilities participated in life physical education program in community welfare center. All participants were conducted pretest and posttest included 2 Experiments. Experimental group performed running with moderate exercise intensity set up Karvonen formula. An experimental group was recorded from 30 minutes after running. First experiment was walking performance immediately after identification of target of 3, 5, 7m distance. Second experiment was walking performance after identification of target and then subtraction calculation during 10 seconds. Errors of walking distance were observed, and converted into absolute and variable error. As the results, acute moderate exercise increases the accuracy and consistency of walking distance in individuals with intellectual disability. How acute exercise affects working memory was discussed. To conclude, acute moderate exercise was thought to optimizer cognitive function by increasing arousal
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