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Cited by 119Cardiovascular and exercise physiologyMuscle metabolism and nutritionExercise and Physiological Responses

Postexercise energy expenditure and substrate oxidation in young women resulting from exercise bouts of different intensity.

Phelain, J F, Reinke, E, Harris, M A, Melby, C L·1997·Journal of the American College of Nutrition
DOI 10.1080/07315724.1997.10718664
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Abstract

OBJECTIVE: The effects of low and high intensity exercise, of similar energy output, on exercise and post-exercise energy expenditure and substrate oxidation were studied in eight active, eumenorrheic females (aged 22 to 31). METHODS: Continuous indirect calorimetry was performed during cycle ergometry exercise and for 3 hours following each of the following three protocols administered in random order: 1) low intensity exercise (LIE: 500 calories 50% VO2 max), 2) high intensity exercise (HIE: 500 calories 75% VO2 max), and 3) control condition (C) of quiet sitting for 1 hour, rather than exercise. Excess postexercise oxygen consumption (EPOC), energy expenditure and total fat and carbohydrate oxidation for the entire exercise/control plus 3-hour recovery period were determined by indirect calorimetry. RESULTS: Mean EPOC for the 3-hour post-exercise period for HIE (9.0 +/- 1.7 L, 41 kcals) was significantly greater than EPOC for low intensity exercise (4.8 +/- 1.6 L, 22 kcals). Oxygen consumption (VO2) following HIE, but not LIE remained elevated at the end of the 3-hour post-exercise period. Total carbohydrate oxidation (exercise plus postexercise period) was significantly higher for HIE (116 +/- 8.6 g) compared to LIE (85.0 +/- 5.2 g). Total fat oxidation was lower for HIE (27.7 +/- 3.3 g) compared to LIE (36.9 +/- 3.0 g), but this difference did not reach statistical significance (p = 0.07). At the end of the 3-hour recovery period, the rate of fat oxidation was higher following HIE compared to LIE. CONCLUSION: These data indicate that the recovery period should also be considered when determining the impact of different exercise intensities on total energy expenditure and fat and carbohydrate utilization in women.

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Authors
Phelain, J. F., Reinke, E., Harris, M. A., & Melby, C. L.
Affiliations
Colorado State University (US)
ORCID
Melby, C L
Venue
Journal of the American College of Nutrition
Publisher
Informa UK Limited
Published
1997-04
Volume
16
Issue
2
Pages
140-146
ISSN
  • 0731-5724 (ISSN-L)
  • 1541-1087
DOI
10.1080/07315724.1997.10718664
OpenAlex
W1996040222
Cited by
119
References
18
Citations by year
2025: 2 · 2024: 20 · 2023: 4 · 2022: 2 · 2021: 3 · 2019: 2 · 2018: 3 · 2017: 4 · 2016: 5 · 2015: 5 · 2014: 5 · 2013: 5 · 2012: 5
FWCI
5.48
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American College of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Hort Innovation
  • University Research Committee, Emory University
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
substrate oxidation, exercise intensity, excess post-exercise oxygen consumption, fat oxidation, carbohydrate oxidation, young women, post-exercise recovery, oxygen consumption
MeSH terms
Adult, Calorimetry, Energy Metabolism, Fats, Female, Humans, Oxidation-Reduction, Oxygen, Exercise, Carbohydrate Metabolism

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