EFFECTS OF A BOUT OF RESISTANCE EXERCISE ON POST-EXERCISE OXYGEN CONSUMPTION AND RESTING METABOLIC RATE

1992 ◽  
Vol 24 (Supplement) ◽  
pp. S175
Author(s):  
C. L. Melby ◽  
O. Edwards
Keyword(s):  
Oxygen Consumption ◽  
Metabolic Rate ◽  
Resistance Exercise ◽  
Resting Metabolic Rate ◽  
Post Exercise

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

2000 ◽  
Vol 10 (1) ◽  
pp. 71-81 ◽  
Author(s):  
Kristin L. Osterberg ◽  
Christopher L. Melby
Keyword(s):  
Oxygen Consumption ◽  
Metabolic Rate ◽  
Resistance Exercise ◽  
Young Women ◽  
Resting Metabolic Rate ◽  
Recovery Period ◽  
Fat Oxidation ◽  
Resistive Exercise ◽  
Fasted State ◽  
Postexercise Recovery

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. These results indicate that among young women, acute strenuous resistance exercise of the nature used in this study is capable of producing modest but prolonged elevations of postexercise metabolic rate and possibly fat oxidation.

Resistance Training and Energy Balance

1998 ◽  
Vol 8 (2) ◽  
pp. 143-159 ◽  
Author(s):  
Eric T. Poehlman ◽  
Christopher Melby
Keyword(s):  
Oxygen Consumption ◽  
Energy Balance ◽  
Resistance Training ◽  
Energy Expenditure ◽  
Metabolic Rate ◽  
Resistance Exercise ◽  
Resting Metabolic Rate ◽  
Substrate Oxidation ◽  
Daily Energy Expenditure ◽  
Daily Energy

In this brief review we examine the effects of resistance training on energy expenditure. The components of daily energy expenditure are described, and methods of measuring daily energy expenditure are discussed. Cross-sectional and exercise intervention studies are examined with respect to their effects on resting metabolic rate, physical activity energy expenditure, postexercise oxygen consumption, and substrate oxidation in younger and older individuals. Evidence is presented to suggest that although resistance training may elevate resting metabolic rate, il does not substantially enhance daily energy expenditure in free-living individuals. Several studies indicate that intense resistance exercise increases postexercise oxygen consumption and shifts substrate oxidation toward a greater reliance on fat oxidation. Preliminary evidence suggests that although resistance training increases muscular strength and endurance, its effects on energy balance and regulation of body weight appear to be primarily mediated by its effects on body composition (e.g., increasing fat-free mass) rather than by the direct energy costs of the resistance exercise.

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