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KMID : 1023920140160010001
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Journal of the Korean Academy of Kinesiology
2014 Volume.16 No. 1 p.1 ~ p.8
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Effects of Moderate Intermittent Exercise and Continuous Exercise on Energy Metabolism during Exercise and Recovery
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Ko Sung-Sik
Byeon Jae-Moon
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Abstract
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INTRODUCTION: The purpose of this study was to compare the energy metabolism between 'intermittent exercise group' and 'continuous exercise group' of same intensity(60%VO2R) total exercise duration(45min) and total exercise recovery period(45min).
METHOD: Nine healthy university students participated in two trials: (1) a single 45min bout exercise (continuous) and (2) three 15min bouts of exercise separated by a 15min rest (intermittent). Each exercise was performed with a treadmill at 60% oxygen uptake reserve.
RESULT: During the rest, no significant difference was observed in oxygen uptake(VO2), respiratory exchanged ratio(RER), exercise expenditure(EE) and fat oxidation rate(FOR) between the intermittent and continuous trails. During the exercise, no significant difference was observed in VO2, RER, EE, FOR between the intermittent and continuous trails. However, the RER and FOR values during the recovery period were significaltly lower in the intermittent trial than in the continuous trial(p=.003, p=.002), and the VO2 and EE values during the recovery period were significantly higher in the intermittent trial than in the continuous trial(p=.005, p=.001), respectively.
CONCLUSION: These results suggest that the moderate intermittent exercise can contribute to greater exercise-induced energy expenditure compared with a moderate continuous exercise.
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KEYWORD
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intermittent exercise, continuous exercise, fat oxidation, energy metabolism, excess post-exercise oxygen comsumption
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