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Muscle strength and cross-sectional area in man: a comparison of strength-trained and untrained subjects
Abstract
This study has examined muscle strength and cross-sectional area in a group of 35 healthy untrained male subjects and 8 subjects who had been engaged in a strenuous weight-training programme. The maximum voluntary knee extension force which could be produced by the untrained subjects was 742 +/- 100 N (mean +/- SD). The trained subjects could produce a significantly (p less than 0.001) greater force (992 +/- 162 N). Cross-sectional area of the knee-extensor muscle group was 81.6 +/- 11.8 cm2 in the untrained subjects and 104.1 +/- 12.3 cm2 in the trained subjects (p less than 0.001). In the untrained subjects, a significant correlation existed between strength and muscle cross-sectional area (r = 0.56, p less than 0.001). In the same group of subjects, there was a significant inverse relationship between muscle cross-sectional area and the ratio of strength to cross-sectional area (r = 0.55, p less than 0.001). The mean ratio of strength to cross-sectional area was 9.20 +/- 1.29 for the untrained group whereas for the trained group this ratio was 9.53 +/- 1.01. It is suggested that the inverse relationship between strength per unit cross-sectional area and cross-sectional area results in part from an increased angle of pennation in the larger muscles.
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“The ability to produce force is predicted primarily by muscle mass in young and older adults (26, 27), as well as voluntary activation level.”
From Body composition in male lifelong trained strength, sprint and endurance athletes and healthy age-matched controls (2023) · cites this paper as [27]
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Cited by
Developing Maximal Neuromuscular Power: Part 1 – Biological Basis of Maximal Power Production
Cormie, P., McGuigan, M. R., & Newton, R. U. (2011) · Sports Medicine · doi:10.2165/11537690-000000000-00000 · Cited by 774
Wernbom, M., Augustsson, J., & Thome??, R. (2007) · Sports Medicine · doi:10.2165/00007256-200737030-00004 · Cited by 583
Muscle-fiber pennation angles are greater in hypertrophied than in normal muscles
Kawakami, Y., Abe, T., & Fukunaga, T. (1993) · Journal of Applied Physiology · doi:10.1152/jappl.1993.74.6.2740 · Cited by 518
Schoenfeld, B. J., Peterson, M. D., Ogborn, D., Contreras, B., & Sonmez, G. T. (2015) · Journal of Strength and Conditioning Research · doi:10.1519/jsc.0000000000000958 · Cited by 418
In vivo specific tension of the human quadriceps femoris muscle
Erskine, R. M., Jones, D. A., Maganaris, C. N., & Degens, H. (2009) · European Journal of Applied Physiology · doi:10.1007/s00421-009-1085-7 · Cited by 110
(2016) · Europe PMC (PubMed Central) · Cited by 101
Walker, S., von Bonsdorff, M., Cheng, S., Häkkinen, K., Bondarev, D., Heinonen, A., & Korhonen, M. T. (2023) · Frontiers in Sports and Active Living · doi:10.3389/fspor.2023.1295906 · Cited by 29
Metadata
- Authors
- Maughan, R. J., Watson, J. S., & Weir, J.
- Venue
- British Journal of Sports Medicine
- Publisher
- BMJ
- Published
- 1984-09
- Volume
- 18
- Issue
- 3
- Pages
- 149-157
- ISSN
- 0306-3674
- 1473-0480
- Cited by
- 78
- References
- 1
- Language
- en
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