EFFECT OF STRENUOUS RESISTANCE EXERCISE ON METABOLIC RATE AND RESTING FAT OXIDATION IN YOUNG WOMEN

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.

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Effect of intensity of resistance exercise on postprandial lipemia

Journal of Applied Physiology ◽

10.1152/japplphysiol.90726.2008 ◽

2009 ◽

Vol 106 (3) ◽

pp. 823-829 ◽

Cited By ~ 25

Author(s):

Arpit Singhal ◽

Jennifer L. Trilk ◽

Nathan T. Jenkins ◽

Kevin A. Bigelman ◽

Kirk J. Cureton

Keyword(s):

Metabolic Rate ◽

Resistance Exercise ◽

Venous Blood ◽

Resting Metabolic Rate ◽

Postprandial Lipemia ◽

Area Under The Curve ◽

Fat Oxidation ◽

Moderate Intensity ◽

High Fat ◽

Equal Work

The purpose of this study is to determine whether moderate-intensity resistance exercise (MOD) lowers postprandial lipemia (PPL) as much as high-intensity resistance exercise (HI) of equal work. Ten healthy men performed three trials, each conducted over 2 days. On day 1 of each treatment, they either did not exercise (CON), performed 3 sets of 16 repetitions of 10 exercises at 50% of 8 repetitions maximum (MOD), or performed 3 sets of 8 repetitions of 10 exercises at 100% of 8 repetitions maximum (HI). On the morning of day 2 at 15.5 h postexercise, participants ate a high-fat meal. Venous blood samples were collected, and metabolic rate was measured at rest and 3 h postprandial. HI reduced fasting triglyceride (TG) and TG area under the curve (AUC) (36%, P = 0.011 and 35%, P = 0.014) compared with CON. MOD tended to reduce fasting TG and TG AUC (21%, P = 0.054 and 26%, P = 0.052) compared with CON, but MOD and HI did not differ in fasting TG or TG AUC. Incremental TG AUC did not differ among treatments. MOD and HI did not change resting metabolic rate. HI increased fat oxidation at rest (21%, P = 0.021) and at 3 h postprandial (39%, P = 0.009) relative to CON. MOD tended to increase fat oxidation at rest (18%, P = 0.060) relative to CON. Fat oxidation and metabolic rate did not differ in MOD and HI. MOD and HI increased the fasting quantitative insulin-sensitivity check index (4%, P = 0.001 and P = 0.004) relative to CON. As MOD and HI resulted in similar reductions in PPL and increases in fat oxidation, resistance exercise intensity does not influence PPL.

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Effects of order of aerobic exercise and resistance exercise on blood pressure, blood lactate, and energy metabolic rate after exercise

Korean Journal of Sports Science ◽

10.35159/kjss.2019.04.28.2.1067 ◽

2019 ◽

Vol 28 (2) ◽

pp. 1067-1077

Author(s):

Seung-Jun Wi ◽

Byung-Sun Lee ◽

Man-Gyoon Lee

Keyword(s):

Blood Pressure ◽

Metabolic Rate ◽

Resistance Exercise ◽

Aerobic Exercise ◽

Blood Lactate

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Effects of omega-3 supplementation on muscle damage after resistance exercise in young women: a randomized placebo-controlled trial

Nutrition and Health ◽

10.1177/02601060211022266 ◽

2021 ◽

pp. 026010602110222

Author(s):

Letícia Chisini Loss ◽

Diane Benini ◽

Felipe Xavier de Lima-e-Silva ◽

Gabriella Berwig Möller ◽

Luiza Rissi Friedrich ◽

...

Keyword(s):

Fish Oil ◽

Resistance Exercise ◽

Muscle Damage ◽

Young Women ◽

Muscle Soreness ◽

Controlled Trial ◽

Omega 3 ◽

Significant Group ◽

Balanced Diet ◽

Strength Capacity

Background: Omega-3 is a nutritional strategie that have been used to recover muscles from exercise-induced muscle damage in a preventive perspective. Aim: To verify whether omega-3 (ω-3) supplementation after a session of resistance exercise facilitates muscle recovery in women undergoing a balanced diet. Methods: This clinical trial was registered under the number NCT02839525. Thirty healthy women (22.2 ± 3.3 years) participated in this double-blinded, placebo-controlled trial. They were randomly distributed into ω-3 ( n=15) and placebo ( n=15) groups. They ingested ω-3 fish oil (3200 mg/day) or placebo (olive oil) at the dinner after the exercise bout (10 sets of 10 unilateral eccentric contractions in a knee extension chair), as well as at lunch for the three subsequent days. In addition, both groups followed a balanced diet along the four days. Muscle soreness and maximal isometric and isokinetic voluntary contractions were assessed immediately before, and 24, 48, and 72 hours after the resistance exercise. Main findings: There was no significant group-time interaction for any outcome. Participants presented increased levels of muscle soreness and reduced muscle strength capacity along the three days after exercise. There was no difference between placebo and ω-3 groups. Conclusion: Supplementation of ω-3 fish oil for three days after resistance exercise provided no additional benefits compared to placebo supplementation on recovery of healthy young women following a balanced diet.

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