Journal article

Effect of Acute Resistance Exercise on Postexercise Oxygen Consumption and Resting Metabolic Rate in Young Women

Osterberg K, Melby C ...see all

International Journal of Sport Nutrition and Exercise Metabolism, vol. 10, issue 1 (2000) pp. 71-81

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Abstract

This study determined the effect of an intense bout of resistive exercise on postexercise oxygen consumption, resting metabolic rate, and resting fat oxidation in young women (N = 7, ages 22-35). On the morning of Day 1, resting metabolic rate (RMR) was measured by indirect calorimetry. At 13:00 hr, preexercise resting oxygen consumption was measured followed by 100 min of resistive exercise. Postexercise oxygen consumption was then measured for a 3-hr recovery period. On the following morning (Day 2), RMR was once again measured in a fasted state at 07:00. Postexercise oxygen consumption remained elevated during the entire 3-hr postexercise recovery period compared to the pre-exercise baseline. Resting metabolic rate was increased by 4.2% (p < .05) from Day 1 (morning prior to exercise: 1,419 ± 58 kcal/24 hr) compared to Day 2 (16 hr following exercise: 1,479 ± 65 kcal/24 hr). Resting fat oxidation as determined by the respiratory exchange ratio was also significantly elevated on Day 2 compared to Day 1....

Author-supplied keywords

  • energy expenditure
  • females
  • metabolism
  • weight lifting

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Authors

  • Kristin L. Osterberg

  • Christopher L. Melby

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