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Potential for Gross Muscle Hypertrophy in Older Men
Abstract
The time course of strength gain with respect to the contributions of neural factors and hypertrophy was studied in five young men and five older men during the course of 8 weeks progressive strength training. Young and old men showed similar and significant percentage increases in strength. However, the neurophysiological adaptations in response to the training were quite different. Increases in maximal muscle activation (neural factors) played a dominant role throughout the training for old subjects, while young subjects showed strength gains due to neural factors only at the initial stage, with hypertrophy becoming the dominant factor after some 4 weeks of training. Our data suggest that the effect of muscle training in the old may entirely rest on the neural factors presumably acting of various levels of the nervous system which could result in increasing the maximal muscle activation level in the absence of significant hypertrophy.
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“It is well known that resistance exercise preferentially improves neural factors during early periods of resistance training before adaptations in muscular factors such as muscle hypertrophy (1).”
From Modulation of Neural and Muscular Adaptation Processes During Resistance Training by Fish Protein Ingestions in Older Adults (2020) · cites this paper as [1]
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“Regarding the training intervention to older adults, adaptations in neural factors highly contribute to improvement in muscle strength by resistance training in older adults (1)”
From Modulation of Neural and Muscular Adaptation Processes During Resistance Training by Fish Protein Ingestions in Older Adults (2020) · cites this paper as [1]
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Exercise and Physical Activity for Older Adults
Chodzko-Zajko, W. J., Proctor, D. N., Fiatarone Singh, M. A., Minson, C. T., Nigg, C. R., Salem, G. J., & Skinner, J. S. (2009) · Medicine & Science in Sports & Exercise · doi:10.1249/mss.0b013e3181a0c95c · Cited by 5,153
“These findings are magnified during the earlier phases of training (91,163).”
Development and Validation of a Functional Fitness Test for Community-Residing Older Adults
Rikli, R. E., & Jones, C. J. (1999) · Journal of Aging and Physical Activity · doi:10.1123/japa.7.2.129 · Cited by 2,090
Fragala, M. S., Cadore, E. L., Dorgo, S., Izquierdo, M., Kraemer, W. J., Peterson, M. D., & Ryan, E. D. (2019) · Journal of Strength and Conditioning Research · doi:10.1519/jsc.0000000000003230 · Cited by 1,290
Cadore, E. L., Rodríguez-Mañas, L., Sinclair, A., & Izquierdo, M. (2013) · Rejuvenation Research · doi:10.1089/rej.2012.1397 · Cited by 954
Takarada, Y., Takazawa, H., Sato, Y., Takebayashi, S., Tanaka, Y., & Ishii, N. (2000) · Journal of Applied Physiology · doi:10.1152/jappl.2000.88.6.2097 · Cited by 849
Metadata
- Authors
- Moritani, T., & Devries, H. A.
- Affiliations
- University of Southern California (US)
- Venue
- Journal of Gerontology
- Publisher
- Oxford University Press (OUP)
- Published
- 1980-09-01
- Volume
- 35
- Issue
- 5
- Pages
- 672-682
- ISSN
- 0022-1422 (ISSN-L)
- OpenAlex
- W2084011411
- Cited by
- 362
- References
- 0
- Citations by year
- 2026: 4 · 2025: 2 · 2024: 5 · 2023: 7 · 2022: 9 · 2021: 11 · 2020: 8 · 2019: 6 · 2018: 9 · 2017: 10 · 2016: 11 · 2015: 11 · 2014: 5 · 2013: 12 · 2012: 7
- FWCI
- 4.44
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Gerontology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
- Health Sciences › Medicine › Physiology (medical) › Cardiovascular and exercise physiology
- Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
- Keywords
- muscle hypertrophy, older men, resistance training, neural factors, strength gain, aging, neurophysiological adaptation, progressive resistance training
- MeSH terms
- Adolescent, Adult, Aged, Anthropometry, Arm, Electromyography, Humans, Male, Muscles, Physical Fitness
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