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자료유형
학술저널
저자정보
저널정보
한국운동생리학회 운동과학 운동과학 제24권 제3호
발행연도
2015.1
수록면
225 - 232 (8page)

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PURPOSE: Methods of determination of critical power (CP) typically consisted of several repeated all-out tests in multiple sessions. Much progress has recently been made in studies, including the 3-min all-out test (3MT), which tried to reduce the number of sessions and testing time. There is, however, lack of the development of new methods minimizing the decrease in accuracy and reliability with maximal temporal efficiency. Thus, the current study was conducted to suggest a new method of determining CP that achieves a reduction in the number of sessions and testing time and guarantees high accuracy and reliability using a modified 3MT protocol and a characteristic of power profile, named the first low steady state (FLSS). METHODS: Ten men (23.8±4.0 years, 175.30±4.85 cm, 75.90±10.55 kg) with no cardiorespiratory, metabolic diseases and medical history of those completed a prior incremental exercise test on a cycle ergometer, followed by 20-min recovery. And then they completed 3MT. After CP was determined by the established 3MT (CPL30s) and by the new method (CPFLLS), CPL30s-CPFLLS mean comparison using paired t-test, correlation analysis and agreement analysis using Bland-Altman plot were conducted with the significant level α=.05. Time gain of the new method was also evaluated and reliability analysis using standard error of estimates (SEE), typical error (TE), coefficient of variation (CV) was conducted. RESULTS: The non-significant mean difference between CPL30s and CPFLLS (p=.477), high time gain (60.6±27.2 sec), high correlation (R2=.98), low errors (SEE=4.5 W, TE=3.0 W), low CV (1.8%), and good agreement were found. In other words, the proposed method not only maintained or improved accuracy also enhanced temporal efficiency, compared to the established modified 3MT. CONCLUSIONS: In conclusion, the proposed method is considered to be a way to determine CP with a reduction in the 3-min testing time of mandatory supramaximal exercise containing potential danger and enable people limited to conduct a physically demanding CP test to do.

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