비 장애 휠체어 농구선수의 휠체어 트레드밀 운동 시 프로토콜에 따른 생리적 반응 비교
Comparison of physiological responses while wheelchair treadmill exercise by wheelchair basketball player without disability
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본 연구는 기존에 연구된 휠체어 트레드밀 프로토콜을 비교 분석하여 가장 효과적인 프로토콜을 제시하는데 있었다. 연구 대상자는 Y 대학교 비 장애인 휠체어 농구부 남자 선수 10명이었다. 선행 연구된 4가지의 대표적인 휠체어 트레드밀 프로토콜을 사용하여 최대 운동부하검사를 각 프로토콜 당 2회씩 무선배정으로 반복 실시하였고, 최대산소섭취량, 최대환기량, 최대심박수, 운동지속시간, 무산소역치 시점을 20초 구간으로 필터링하여 비교 분석하였으며, 혈중젖산농도는 최대 운동부하검사 전, 직후, 회복기 2분, 4분, 6분을 비교 분석 하였다. 4가지 프로토콜에 따른 심폐기능의 반응 차이를 one-way RM ANOVA로, 혈중젖산농도 차이 분석을 two-way (4×5)RM ANOVA로 분석하였다(p＜.05). 분석된 자료를 통하여 얻어진 결론은 다음과 같다. 첫째 속도는 고정시키고 경사도를 일정하게 증가시키는 휠체어 트레드밀 프로토콜이 심폐기능의 생리적 반응이 가장 높게 나타났다. 둘째, 빠른 속도에 고정시키고 경사도를 증가시키는 프로토콜이 가장 빨리 무산소역치 시점에 도달하였나, 이후 규칙적인 저강도 운동부하로 검사의 조기 종료 없이 최대산소섭취량과 효과적인 운동지속시간을 이끌어 낼 수 있었다. 셋째, 속도만 증가시키는 프로토콜은 계속적인 속도 증가에 의해 휠체어를 추진하는 동작이 제대로 이루어지지 않아 최대산소섭취량에 도달할 수 없었다.
Abstract
The purpose of this study were to analyze wheelchair treadmill protocol and to suggest a optimal physiological responses protocol effectively. Subjects were ten basketball players without disability who participated in the wheelchair basketball team. Using typical 4 protocols which completed previous studies, conducted maximum load test each protocol randomly twice. Compared and analysed maximum oxygen intake, maximum breathing capacity, maximal heart rate, exercise sustainment time and 20 second point of anaerobic threshold and the analysis of blood lactate concentration per 2 minutes, 4 minutes and 6 minutes before and after(all-out) maximum exercise test. Analysed the difference of cardiopulmonary function according to 4 protocols one-way RM ANOVA, and the difference of blood lactate concentration was analyzed by two-way (4×5) RM ANOVA (p＜.05). The results were as follows. Firstly, fixed speed and constant increase slope protocol resulted in the biggest response of physiological cardiopulmonary function. Secondly, rapid speed fixed and increased slope protocol reached anaerobic threshold most rapidly, but regular low intensity exercise load could exert maximum oxygen intake and effective exercise sustainment time without early finish of examination. Thirdly, speed increase only protocol could not reach maximum oxygen intake because there was no proper promotion to wheelchair by constant increasing speed
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