Kelly Tran

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INTRODUCTION: As individuals conduct exercise, the body’s oxygen consumption rate is elevated to provide the increase oxygen demanded by the working muscles. During recovery, oxygen consumption declines but remains elevated above pre-exercising resting levels. The length of time that oxygen consumption remains elevated is dependent on the intensity and duration of the exercise, as well as the fitness level of the individual. The oxygen that is consumed above resting levels during recovery is referred to as excess post-exercise oxygen consumption (EPOC). PURPOSE:The purpose of this study is to determine if there is a difference in excess post-exercise oxygen consumption between continuousand intermittent exercise. METHODS: Five men (M: age 23.4 ±3.71) from the University of Texas at Arlington, volunteered to participate in this study. Each participant’s height and weight were measured and recorded. Participants came in for two separate testing sessions (continuous and intermittent). Each protocol was randomly assigned to each participant. During continuous protocol, participants cycled on a monark cycle ergometer for twenty minutes. For intermittent protocol, participants cycled in ten minute intervals. Participants performed both tests at 70 percent of their age predicted heart rate max. While conducting the test, oxygen consumption (VO2) was measured by the metabolic cart. RESULTS: The EPOC that was calculated for continuous exercise was 0.29 ±0.071 L/min and for intermittent the EPOC was 0.36 ±0.18 L/min there was no significant difference (p > 0.05). The total net VO2for continuous exercise was calculated to be 1.43 ±0.36 L/min and the intermittent values were 1.79 ±0.88 L/min; there was no significant difference (p > 0.05). The time it took for the participants to recover after continuous protocol was 4.8 ±1.79 minutes. For intermittent exercise, the recovery time was 5.2 ±0.84 minutes; there was no significant difference in recovery time (p > 0.05). The average heart rate during recovery for continuous exercise was 111.84 ±6.26 bt/min, while the average heart rate during recovery for intermittent exercise was 112 ±5.14 bt/min. There was no significant difference in average recovery heart rate (p > 0.05). CONCLUSION: The results of this study indicate that there is no difference between continuous and intermittent exercise and its effect on EPOC. Future research should be conducted to determine the role that intensity has on EPOC.


Kinesiology | Life Sciences

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