Cited by 66Sports Performance and TrainingCardiovascular and exercise physiologyMuscle metabolism and nutrition

Muscular adaptation to concentric and eccentric exercise at equal power levels

MAYHEW, THOMAS P., ROTHSTEIN, JULES M., FINUCANE, SHERYL D., LAMB, ROBERT L.·1995·Medicine & Science in Sports & Exercise

Abstract

The effect of training with concentric and eccentric contractions on fiber hypertrophy and isometric torque production was investigated in 20 healthy subjects. One group (eight female and two male subjects) performed concentric contractions of their quadriceps femoris muscles at an intensity of 90% of their maximal concentric power. The other group (six female and four male subjects) performed eccentric contractions at the same relative power level. Both groups exercised three times per week for 4 wk at a constant speed of 60 degrees.s-1 on a Kin-Com dynamometer. Needle biopsies were obtained from the vastus lateralis before and after the exercise program. Fiber-type differentiation was performed using a myosin ATPase stain at a preincubation of 10.5. Maximal isometric knee extension torque was also measured before and after the exercise program. An analysis of covariance was used to determine whether there were significant differences between the exercise groups in: 1) the post-exercise fiber areas and 2) maximal isometric torque (MIso), while controlling for initial differences. Results showed a significant difference between the Type II fiber areas (P < 0.01) and the MIso (P = 0.01). These data indicate that, when exercising at the same relative power level, a subject performing concentric contractions will show greater muscle hypertrophy and improve in MIso production more than a subject training with eccentric contractions.

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Crossref · 10.1249/00005768-199506000-00011

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Authors
MAYHEW, T. P., ROTHSTEIN, J. M., FINUCANE, S. D., & LAMB, R. L.
Affiliations
Virginia Commonwealth University (US)
Venue
Medicine & Science in Sports & Exercise
Published
1995-06
Volume
27
Issue
6
Pages
868???874
ISSN
0195-9131 (ISSN-L)
OpenAlex
W2044837682
Cited by
66
References
0
Citations by year
2025: 1 · 2024: 1 · 2022: 2 · 2021: 1 · 2019: 2 · 2018: 3 · 2017: 2 · 2015: 4 · 2014: 4 · 2013: 5 · 2012: 3
FWCI
0.68
Type
journal article
Language
en
Open access
closed
Locations
  • Medicine & Science in Sports & Exercise (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
muscle hypertrophy, eccentric training, concentric training, fast-twitch muscle, isometric torque, quadriceps, vastus lateralis, muscle fiber area, resistance training
MeSH terms
Adaptation, Physiological, Adult, Female, Humans, Knee Joint, Male, Thigh, Exercise, Muscle, Skeletal, Muscle Fibers, Skeletal

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