Cited by 39Thermoregulation and physiological responsesMuscle metabolism and nutritionSports Performance and Training

Environmental Temperature and Glycogen Resynthesis

Naperalsky, M., Ruby, B., Slivka, D.·2010·International Journal of Sports Medicine

Abstract

This study investigated the effects of hot (H) and room temperature (RT) recovery environments on glycogen resynthesis. Nine male participants completed two trials, cycling for 1 h in a temperature-controlled chamber (32.6 degrees C), followed by 4 h of recovery at 32.6 degrees C (H) or 22.2 degrees C (RT). Rectal temperature was continuously recorded. A carbohydrate beverage (1.8 g/kg bodyweight) was supplied at 0 and 2 h post-exercise. Muscle biopsies were taken immediately, 2 h, and 4 h post-exercise for glycogen analysis. Blood samples were taken at 30, 60, 120, 150, 180, and 240 min into recovery for glucose and insulin analysis. Expired gas was collected at 105 min and 225 min into recovery to calculate whole body carbohydrate oxidation. Average core temperature, whole body carbohydrate oxidation, and serum glucose at 120, 150, 180 and 240 min was higher in H compared to RT (p<0.05). Muscle glycogen was higher in RT vs. H at 4 h (105+/-28 vs. 88+/-24 mmolxkg (-1) wet weight, respectively; p<0.05), but no different at 0 and 2 h. There was no difference in serum insulin. These data indicate the importance of minimizing the exposure to heat after exercise to improve recovery, specifically to improve glycogen resynthesis.

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Crossref · 10.1055/s-0030-1254083

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  • Recovering in room temperature ambient conditions and with warmed muscles will enhance glycogen re-synthesis as demonstrated by prior research on males.

    “Recovering in room temperature ambient conditions (Naperalsky et al. 2010; Slivka et al. 2013) and with warmed muscles (Slivka et al. 2012; Tucker et al. 2012) will enhance glycogen re-synthesis as demonstrated by prior research on males.”

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Authors
Naperalsky, M., Ruby, B., & Slivka, D.
Affiliations
University of Montana (US)
Venue
International Journal of Sports Medicine
Published
2010-05-12
Volume
31
Issue
08
Pages
561-566
ISSN
  • 0172-4622 (ISSN-L)
  • 1439-3964
OpenAlex
W2078154777
Cited by
39
References
0
Citations by year
2025: 4 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 5 · 2020: 3 · 2019: 3 · 2017: 2 · 2016: 4 · 2015: 2 · 2014: 2 · 2013: 2 · 2012: 3
FWCI
1.30
Type
journal article
Language
en
Open access
closed
Locations
  • International Journal of Sports Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
Air Force Research Laboratory
Topics
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
Keywords
glycogen resynthesis, ambient temperature, post-exercise recovery, carbohydrate oxidation, rectal temperature, serum insulin, serum glucose, muscle glycogen, carbohydrate intake, heat exposure
MeSH terms
Adult, Bicycling, Blood Glucose, Body Temperature, Dietary Carbohydrates, Exercise Test, Glycogen, Hot Temperature, Humans, Insulin, Male, Oxidation-Reduction, Temperature, Time Factors, Muscle, Skeletal, Young Adult

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