Responsiveness to muscle mass gain following 12 and 24 weeks of resistance training in older women
- 1 April 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Aging Clinical and Experimental Research
- Vol. 33 (4), 1071-1078
- https://doi.org/10.1007/s40520-020-01587-z
Abstract
Background Many factors may influence the magnitude of individual responses to resistance training (RT). How the manipulation of training volume and frequency affects responsiveness level for muscle mass gain in older women has not been investigated. Aims This study had the objective of identifying responders (RP) and non-responders (N-RP) older women for skeletal muscle mass (SMM) gain from a 12-week resistance training (RT) program. Additionally, we analyzed whether the N-RP could gain SMM with an increase in weekly training volume over 12 additional weeks of training. Methods Thirty-nine older women (aged >= 60 years) completed 24 weeks of a whole-body RT intervention (eight exercises, 2-3x/week, 1-2 sets of 10-15 repetitions). SMM was estimated by DXA, and the responsive cut-off value was set at two times the standard error of measurement. Participants were considered as RP if they exceeded the cut-off value after a 12-week RT phase, while the N-RP were those who failed to reach the SMM cut-off. Results Of the 22 participants considered to be N-RP, only 3 accumulated SMM gains (P = 0.250) that exceeded the cut-off point for responsiveness following 12 additional weeks of training, while 19 maintained or presented negative SMM changes. Of the 17 participants considered to be RP, all continued to gain SMM after the second 12-week RT phase. No significant correlation was observed between the changes in SMM and any baseline aspect of the participants. Conclusions Our results suggest that some older women are RP, while others are N-RP to SMM gains resulting from RT. Furthermore, the non-responsiveness condition was not altered by an increase of training volume and intervention duration while RP participants continue to increase SMM; it appears that RP continue to be RP, and N-RP continue to be N-RP.Keywords
This publication has 29 references indexed in Scilit:
- Resistance Training for Older Adults: Position Statement From the National Strength and Conditioning AssociationJournal of Strength & Conditioning Research, 2019
- Do Non-Responders to Exercise Exist—and If So, What Should We Do About Them?Sports Medicine, 2018
- Physiological Differences Between Low Versus High Skeletal Muscle Hypertrophic Responders to Resistance Exercise Training: Current Perspectives and Future Research DirectionsFrontiers in Physiology, 2018
- There are no no-responders to low or high resistance training volumes among older womenExperimental Gerontology, 2017
- Understanding Personalized Training Responses: Can Genetic Assessment Help?The Open Sports Sciences Journal, 2017
- Determining the Importance of Meeting Muscle-Strengthening Activity GuidelinesMayo Clinic Proceedings, 2015
- There Are No Nonresponders to Resistance-Type Exercise Training in Older Men and WomenJournal of the American Medical Directors Association, 2015
- Heterogeneity of Physical Function Responses to Exercise Training in Older AdultsJournal of the American Geriatrics Society, 2015
- Variability in training-induced skeletal muscle adaptationJournal of Applied Physiology, 2011
- The Mechanisms of Muscle Hypertrophy and Their Application to Resistance TrainingJournal of Strength & Conditioning Research, 2010