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Cited by 522

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Muscle triglyceride utilization during exercise: effect of training

Hurley, B. F., Nemeth, P. M., Martin, W. H., Hagberg, J. M., Dalsky, G. P., Holloszy, J. O.·1986·Journal of Applied Physiology
DOI 10.1152/jappl.1986.60.2.562
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Abstract

The respiratory exchange ratio (RER) is lower during exercise of the same intensity in the trained compared with the untrained state, even though plasma free fatty acids (FFA) and glycerol levels are lower, suggesting reduced availability of plasma FFA. In this context, we evaluated the possibility that lipolysis of muscle triglycerides might be higher in the trained state. Nine adult male subjects performed a prolonged bout of exercise of the same absolute intensity before and after adapting to a strenuous 12-wk program of endurance exercise. The exercise test required 64% of maximum O2 uptake before training. Plasma FFA and glycerol concentrations and RER during the exercise test were lower in the trained than in the untrained state. The proportion of the caloric expenditure derived from fat, calculated from the RER, during the exercise test increased from 35% before training to 57% after training. Muscle glycogen utilization was 41% lower, whereas the decrease in quadriceps muscle triglyceride concentration was roughly twice as great (12.7 +/- 5.5 vs. 26.1 +/- 9.3 mmol/kg dry wt, P less than 0.001) in the trained state. These results suggest that the greater utilization of FFA in the trained state is fueled by increased lipolysis of muscle triglyceride.

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Metadata

Authors
Hurley, B. F., Nemeth, P. M., Martin, W. H., Hagberg, J. M., Dalsky, G. P., & Holloszy, J. O.
Venue
Journal of Applied Physiology
Publisher
American Physiological Society
Published
1986-02-01
Volume
60
Issue
2
Pages
562-567
ISSN
  • 0161-7567 (ISSN-L)
  • 8750-7587
  • 1522-1601
DOI
10.1152/jappl.1986.60.2.562
OpenAlex
W2152174497
Cited by
522
References
1
FWCI
16.06
Type
journal article
Language
en
Open access
closed

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