Cited by 142Cardiovascular and exercise physiologyMuscle metabolism and nutritionExercise and Physiological Responses

Smaller muscle ATP reduction in women than in men by repeated bouts of sprint exercise.

Esbjörnsson-Liljedahl, Mona, Bodin, Kristina, Jansson, Eva·2002·Journal of Applied Physiology

Abstract

It was hypothesized that the reduction of high-energy phosphates in muscle after repeated sprints is smaller in women than in men. Fifteen healthy and physically active women and men with an average age of 25 yr (range of 19-42 yr) performed three 30-s cycle sprints (Wingate test) with 20 min of rest between sprints. Repeated blood and muscle samples were obtained. Freeze-dried pooled muscle fibers of types I and II were analyzed for high-energy phosphates and their breakdown products and for glycogen. Accumulation of plasma ATP breakdown products, plasma catecholamines, and blood lactate, as well as glycogen reduction in type I fibers, was all lower in women than in men during sprint exercise. Repeated sprints induced smaller reduction of ATP and smaller accumulation of IMP and inosine in women than in men in type II muscle fibers, with no gender differences in changes of ATP and its breakdown products during the bouts of exercise themselves. This indicates that the smaller ATP reduction in women than in men during repeated sprints was created during recovery periods between the sprint exercises and that women possess a faster recovery of ATP via reamination of IMP during these recovery periods.

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Crossref · 10.1152/japplphysiol.00732.1999

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Authors
Esbjörnsson-Liljedahl, M., Bodin, K., & Jansson, E.
Affiliations
  • Karolinska Institutet, Department of Medical Laboratory Sciences and Technology, Division of Clinical Physiology, Huddinge University Hospital, 141 86 Stockholm, Sweden
  • Karolinska Institutet (SE)
Venue
Journal of Applied Physiology
Published
2002-09-01
Volume
93
Issue
3
Pages
1075-1083
ISSN
  • 0161-7567 (ISSN-L)
  • 8750-7587
  • 1522-1601
OpenAlex
W2169034533
Cited by
142
References
32
Citations by year
2026: 7 · 2025: 7 · 2024: 14 · 2023: 13 · 2022: 8 · 2021: 13 · 2020: 10 · 2019: 5 · 2018: 6 · 2017: 5 · 2016: 5 · 2015: 7 · 2014: 7 · 2013: 6 · 2012: 4
FWCI
2.26
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
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
high-energy phosphates, muscle ATP, repeated sprint exercise, sex differences, women, men, inosine, muscle glycogen, type I muscle fibers, fast-twitch muscle, catecholamines, blood lactate, Wingate test
MeSH terms
Adenosine Triphosphate, Adult, Blood, Female, Humans, Male, Oxidation-Reduction, Physical Endurance, Sex Characteristics, Time Factors, Exercise, Muscle, Skeletal

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