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Inheritance of Human Skeletal Muscle and Anaerobic Capacity Adaptation to High-Intensity Intermittent Training*
Abstract
The role of heredity in the response of maximal anaerobic capacities and skeletal muscle histochemical and biochemical characteristics to a 15-week cycle ergometer training program involving both continuous and interval work patterns was investigated in 14 pairs of monozygotic twins. The training program consisted mainly of series of ergocycle supramaximal exercises lasting from 15 s to 90 s and performed 4 and 5 times a week. The subjects were submitted to 10 s and 90 s all-out ergocycle tests to estimate maximal anaerobic alactacid (AAC) and lactacid (ALC) capacities, respectively. Muscle fiber types and creatine kinase (CK), hexokinase (HK), phosphofructokinase (PFK), lactate dehydrogenase (LDH), malate dehydrogenase (MDH), 3-hydroxyacyl CoA dehydrogenase (HADH), and oxoglutarate dehydrogenase (OGDH) activities were determined in a biopsy from the vastus lateralis. Training increased AAC, ALC, fiber type I proportion, MDH, HADH, and OGDH (P less than 0.05) and decreased fiber type IIb proportion and the PFK/OGDH ratio. No significant change was observed for CK, HK, PFK, and LDH. Large interindividual differences in the response to training were observed for all variables. However, intraclass correlations indicated that the extent of the response of ALC and CK, HK, LDH, MDH, and OGDH activities and of the PFK/OGDH activity ratio to training were significantly similar within pairs of twins. Although the role of heredity appeared absent for the changes in fiber type proportions and in anaerobic alactacid capacity, the present results suggest that the response of anaerobic lactacid capacity and most enzyme activities to high-intensity intermittent training is significantly determined by the genotype.
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“pairs of identical twins had significantly more similar increases in VO2max than unrelated twin pairs after aerobic training in three papers in the mid-1980s (217, 421, 474).”
From Lack of Exercise Is a Major Cause of Chronic Diseases (2012) · cites this paper as [474]
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Metadata
- Authors
- Simoneau, J., Lortie, G., Boulay, M., Marcotte, M., Thibault, M., & Bouchard, C.
- Affiliations
- Université Laval (CA)
- Venue
- International Journal of Sports Medicine
- Publisher
- Georg Thieme Verlag KG
- Published
- 1986-06
- Volume
- 07
- Issue
- 03
- Pages
- 167-171
- ISSN
- 0172-4622 (ISSN-L)
- 1439-3964
- OpenAlex
- W1995705380
- Cited by
- 115
- References
- 0
- Citations by year
- 2025: 1 · 2024: 2 · 2023: 3 · 2022: 2 · 2021: 6 · 2020: 3 · 2019: 4 · 2018: 4 · 2017: 2 · 2016: 3 · 2015: 1 · 2014: 4 · 2013: 4 · 2012: 4
- FWCI
- 1.48
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Sports Medicine (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Physical Performance
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
- Health Sciences › Medicine › Physiology (medical) › Cardiovascular and exercise physiology
- Keywords
- high-intensity intermittent training, anaerobic capacity, skeletal muscle adaptation, muscle fiber composition, muscle enzyme activity, monozygotic twins, heredity (biology), genotypes, interindividual variability, cycle ergometer training, vastus lateralis, lactate dehydrogenase, malate dehydrogenase, 3-hydroxyacyl-CoA dehydrogenase, creatine kinase, hexokinase
- MeSH terms
- Adaptation, Physiological, Anaerobiosis, Biopsy, Physical Exertion, Female, Genetics, Medical, Genotype, Histocytochemistry, Humans, Lactates, Male, Muscles, Physical Education and Training, Time Factors, Twins, Monozygotic, Lactic Acid
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