本研究的目的在分析相同作功量、高低不同強度阻力運動後的過攝氧量，並藉由不同強度阻力運動後的生理反應的分析來解釋造成運動後過攝氧量差異的成因。本研究的受試者為16名國立台灣師大體育學系男性學生，受試者分別接受高強度(3組、75%1RM的強度進行10次反覆)和低強度(3組、50% 1RM的強度進行15次反覆)的阻力運動測驗，在運動測驗中和運動後恢復期分別測量受試者的攝氧量、體溫、心跳率、換氣量、和呼吸交換率。本研究以相依樣本t-test考驗不同強度阻力運動後過攝氧量與各項生理反應的差異。結果分析後發現進行高強度阻力運動在運動後恢復期各階段的攝氧量和能量消耗皆顯著的高於從事低強度阻力運動(p <.05)，此外，體溫、心跳率、呼吸交換率在恢復期各階段皆無顯著差異(p >.05)。因此，研究結果顯示相同做功量、高強度的阻力運動的確比低強度阻力運動更可以增加運動後過攝氧量，進而增加運動後恢復期的能量消耗。此外，高強度阻力運動中的能量消耗也顯著的高於低強度阻力運動。因此，本研究建議有意利用運動來增加能量消耗達到體重控制目標的運動愛好者，也可考慮以高強度阻力運動來作為體重控制的運動處方。

The purpose of this study was to compare the effects of equal work resistance exercise with different intensities on EPOC, and to use physiological responses after resistance exercise to explain the affecting factors of EPOC. In this study, sixteen university male students performed resistance exercise test of high intensity (HI, 3 sets of 10 repetitions at 75% of 1RM) and low intensity (LO, 3 sets of 15 repetitions at 50% of their 1RM) respectively. During the exercise and post-exercise periods, subject’s heart rate (HR), ventilation volume (VE), oxygen consumption (VO2), respiratory exchange ratio (RER) and body temperature (BT) were continuously monitored. Repeated t-test was applied to compare the EPOC and physiological responses between high and low intensities. The results found that the oxygen consumption and energy expenditure in the recovery period of HI were significantly different with LO (p <.05). HR, RER and BT showed no significant differences between HI and LO (p >.05). Thus, the results of the study indicated that for resistance exercise with an equated work volume, HI produced higher EPOC and energy expenditure than LO. Moreover, the energy expenditure during exercise in HI was also significantly higher than LO. In conclusion, the resistance exercise, especially at high intensity, is a good choice for weight control.

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