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Effects of Different Resistance Training Systems on Muscular Strength and Hypertrophy in Resistance-Trained Older Women.
J Strength Cond Res. 2018 Feb; 32(2):545-553.JS

Abstract

Ribeiro, AS, Aguiar, AF, Schoenfeld, BJ, Nunes, JP, Cavalcanti, EF, Cadore, EL, and Cyrino, ES. Effects of different resistance training systems on muscular strength and hypertrophy in resistance-trained older women. J Strength Cond Res 32(2): 545-553, 2018-The purpose of this study was to investigate the effect of resistance training (RT) performed in a pyramid (PR) vs. constant (CT) load system on muscular strength and hypertrophy in resistance-trained older women. Thirty-three older women (69.7 ± 5.9 years, 69.1 ± 15.0 kg, 156.6 ± 6.2 cm, and 28.1 ± 5.4 kg·m) were randomized into 2 groups: one that performed RT with a CT load (n = 16) and another group that performed RT in an ascending PR fashion (n = 17). Outcomes included 1 repetition maximum (RM) tests and assessment of skeletal muscle mass estimated by dual-energy X-ray absorptiometry. The study lasted 32 weeks, with 24 weeks dedicated to preconditioning and 8 weeks for the actual experiment. The RT program was conducted 3 d·wk; the CT consisted of 3 sets of 8-12RM with same load across sets, whereas the PR consisted of 3 sets of 12/10/8RM with incremental loads for each set. A significant (p ≤ 0.05) change from pretraining to posttraining was observed for chest press total strength (CT: pre = 122.8 ± 21.0 kg, post = 128.9 ± 21.4 kg, effect size [ES] = 0.28; PR: pre = 120.5 ± 22.8 kg, post = 125.8 ± 22.9 kg, ES = 0.24) and muscle mass (CT: pre = 21.4 ± 3.6 kg, post = 21.7 ± 3.5 kg, ES = 0.09; PR: pre = 20.9 ± 3.4 kg, post = 21.1 ± 3.4 kg, ES = 0.06) without differences between groups. Results suggest that both systems are effective to improve strength and muscle growth, but PR is not superior to CT for inducing improvements in previously trained older women.

Authors+Show Affiliations

Center for Research in Health Sciences, University of Northern Paraná, Londrina, Brazil.Center for Research in Health Sciences, University of Northern Paraná, Londrina, Brazil.Exercise Science Department, CUNY Lehman College, Bronx, New York.Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil.Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil.Exercise Research Laboratory, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.Exercise Science Department, CUNY Lehman College, Bronx, New York.

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

29120984

Citation

Ribeiro, Alex S., et al. "Effects of Different Resistance Training Systems On Muscular Strength and Hypertrophy in Resistance-Trained Older Women." Journal of Strength and Conditioning Research, vol. 32, no. 2, 2018, pp. 545-553.
Ribeiro AS, Aguiar AF, Schoenfeld BJ, et al. Effects of Different Resistance Training Systems on Muscular Strength and Hypertrophy in Resistance-Trained Older Women. J Strength Cond Res. 2018;32(2):545-553.
Ribeiro, A. S., Aguiar, A. F., Schoenfeld, B. J., Nunes, J. P., Cavalcante, E. F., Cadore, E. L., & Cyrino, E. S. (2018). Effects of Different Resistance Training Systems on Muscular Strength and Hypertrophy in Resistance-Trained Older Women. Journal of Strength and Conditioning Research, 32(2), 545-553. https://doi.org/10.1519/JSC.0000000000002326
Ribeiro AS, et al. Effects of Different Resistance Training Systems On Muscular Strength and Hypertrophy in Resistance-Trained Older Women. J Strength Cond Res. 2018;32(2):545-553. PubMed PMID: 29120984.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of Different Resistance Training Systems on Muscular Strength and Hypertrophy in Resistance-Trained Older Women. AU - Ribeiro,Alex S, AU - Aguiar,Andreo F, AU - Schoenfeld,Brad J, AU - Nunes,João P, AU - Cavalcante,Edilaine F, AU - Cadore,Eduardo L, AU - Cyrino,Edilson S, PY - 2017/11/10/pubmed PY - 2018/7/3/medline PY - 2017/11/10/entrez SP - 545 EP - 553 JF - Journal of strength and conditioning research JO - J Strength Cond Res VL - 32 IS - 2 N2 - Ribeiro, AS, Aguiar, AF, Schoenfeld, BJ, Nunes, JP, Cavalcanti, EF, Cadore, EL, and Cyrino, ES. Effects of different resistance training systems on muscular strength and hypertrophy in resistance-trained older women. J Strength Cond Res 32(2): 545-553, 2018-The purpose of this study was to investigate the effect of resistance training (RT) performed in a pyramid (PR) vs. constant (CT) load system on muscular strength and hypertrophy in resistance-trained older women. Thirty-three older women (69.7 ± 5.9 years, 69.1 ± 15.0 kg, 156.6 ± 6.2 cm, and 28.1 ± 5.4 kg·m) were randomized into 2 groups: one that performed RT with a CT load (n = 16) and another group that performed RT in an ascending PR fashion (n = 17). Outcomes included 1 repetition maximum (RM) tests and assessment of skeletal muscle mass estimated by dual-energy X-ray absorptiometry. The study lasted 32 weeks, with 24 weeks dedicated to preconditioning and 8 weeks for the actual experiment. The RT program was conducted 3 d·wk; the CT consisted of 3 sets of 8-12RM with same load across sets, whereas the PR consisted of 3 sets of 12/10/8RM with incremental loads for each set. A significant (p ≤ 0.05) change from pretraining to posttraining was observed for chest press total strength (CT: pre = 122.8 ± 21.0 kg, post = 128.9 ± 21.4 kg, effect size [ES] = 0.28; PR: pre = 120.5 ± 22.8 kg, post = 125.8 ± 22.9 kg, ES = 0.24) and muscle mass (CT: pre = 21.4 ± 3.6 kg, post = 21.7 ± 3.5 kg, ES = 0.09; PR: pre = 20.9 ± 3.4 kg, post = 21.1 ± 3.4 kg, ES = 0.06) without differences between groups. Results suggest that both systems are effective to improve strength and muscle growth, but PR is not superior to CT for inducing improvements in previously trained older women. SN - 1533-4287 UR - https://www.unboundmedicine.com/medline/citation/29120984/Effects_of_Different_Resistance_Training_Systems_on_Muscular_Strength_and_Hypertrophy_in_Resistance_Trained_Older_Women_ L2 - http://dx.doi.org/10.1519/JSC.0000000000002326 DB - PRIME DP - Unbound Medicine ER -