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Effect of resistance training with different frequencies and detraining on muscular strength and oxidative stress biomarkers in older women.
Age (Dordr). 2015 Oct; 37(5):104.A

Abstract

The aim of this study was to compare the effect of resistance training (RT) performed with different frequencies followed by a detraining period on muscular strength and oxidative stress (OS) biomarkers in older women. Twenty-seven physically independent women (68.8 ± 4.8 years, 69.1 ± 14.3 kg, 156.0 ± 6.5 cm, and 28.3 ± 4.9 to kg.m(-2)) were randomly assigned to perform a RT program for 2 or 3 days per week (G2X = 13 vs. G3X = 14) for 12 weeks followed by 12 weeks of detraining period. One repetition maximum (1RM) tests were used as measures of muscular strength (three exercises, three attempts for each exercise, 3-5 min of rest between attempts, and 5 min of rest between exercises). Advanced oxidized protein products (AOPP) and total radical-trapping antioxidant parameter (TRAP) were used as oxidative stress indicators. Both groups increased muscular strength after 12 weeks of training (P < 0.05) in chest press (G2X = +11.9 % vs. G3X = +27.5 %, P < 0.05), knee extension (G2X = +18.4 % vs. G3X = +16.7 %, P > 0.05), and preacher curl (G2X = +37.6 % vs. G3X = +36.7 %, P > 0.05). On the other hand, 12 weeks of detraining were not sufficient to eliminate the major effects produced by RT on muscular strength, although a significant decrease (P < 0.05) has been observed for chest press (G3X = -9.1 % vs. G2X = -10.2 %, P > 0.05), knee extension (G2X = -14.9 % vs. G3X = -12.1 %, P > 0.05), and preacher curl (G2X = -20.5 % vs. G3X = -17.4 %, P > 0.05). Pre- to post-training, both groups showed significant (P < 0.05) increases in TRAP (G2X = +6.9 % vs. G3X = +15.1 %) with no statistical significant difference between the groups (P > 0.05), and the scores remained elevated compared to pre-training after 12 weeks of detraining. AOPP was not changed by RT or detraining (P > 0.05). The results suggest that a 12-week RT program with a frequency of 2 days per week may be sufficient to improve muscular strength and OS in older women and detraining for 12 weeks does not completely reverse the changes induced by RT.

Authors+Show Affiliations

Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, PR, Brazil. camilapersonal@yahoo.com.br. , 908, Xavier da Silva, Ibiporã, PR, Brazil, 86200-000. camilapersonal@yahoo.com.br.Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, PR, Brazil.Department of Kinesiology, University of Wisconsin-Eau Claire, Eau Claire, WI, USA.Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, PR, Brazil. Paraná State University, UNESPAR, Paranavaí Campus, Paranavaí, PR, Brazil.Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, PR, Brazil.Department of Pathology, Clinical and Toxicological Analysis. Center of Health Sciences, University Hospital, Londrina State University, Londrina, Brazil.Department of Pathology, Clinical and Toxicological Analysis. Center of Health Sciences, University Hospital, Londrina State University, Londrina, Brazil.Department of Pathology, Clinical and Toxicological Analysis. Center of Health Sciences, University Hospital, Londrina State University, Londrina, Brazil.Exercise Science Department, Truman State University, Kirksville, MO, USA.Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, PR, Brazil.

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

26423425

Citation

Padilha, Camila S., et al. "Effect of Resistance Training With Different Frequencies and Detraining On Muscular Strength and Oxidative Stress Biomarkers in Older Women." Age (Dordrecht, Netherlands), vol. 37, no. 5, 2015, p. 104.
Padilha CS, Ribeiro AS, Fleck SJ, et al. Effect of resistance training with different frequencies and detraining on muscular strength and oxidative stress biomarkers in older women. Age (Dordr). 2015;37(5):104.
Padilha, C. S., Ribeiro, A. S., Fleck, S. J., Nascimento, M. A., Pina, F. L., Okino, A. M., Venturini, D., Barbosa, D. S., Mayhew, J. L., & Cyrino, E. S. (2015). Effect of resistance training with different frequencies and detraining on muscular strength and oxidative stress biomarkers in older women. Age (Dordrecht, Netherlands), 37(5), 104. https://doi.org/10.1007/s11357-015-9841-6
Padilha CS, et al. Effect of Resistance Training With Different Frequencies and Detraining On Muscular Strength and Oxidative Stress Biomarkers in Older Women. Age (Dordr). 2015;37(5):104. PubMed PMID: 26423425.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of resistance training with different frequencies and detraining on muscular strength and oxidative stress biomarkers in older women. AU - Padilha,Camila S, AU - Ribeiro,Alex S, AU - Fleck,Steven J, AU - Nascimento,Matheus A, AU - Pina,Fabio L C, AU - Okino,Alessandra Miyuki, AU - Venturini,Danielle, AU - Barbosa,Décio S, AU - Mayhew,Jerry L, AU - Cyrino,Edilson S, Y1 - 2015/09/30/ PY - 2015/07/03/received PY - 2015/09/21/accepted PY - 2015/10/2/entrez PY - 2015/10/2/pubmed PY - 2016/5/18/medline KW - AOPP KW - Aging KW - Strength training KW - TRAP SP - 104 EP - 104 JF - Age (Dordrecht, Netherlands) JO - Age (Dordr) VL - 37 IS - 5 N2 - The aim of this study was to compare the effect of resistance training (RT) performed with different frequencies followed by a detraining period on muscular strength and oxidative stress (OS) biomarkers in older women. Twenty-seven physically independent women (68.8 ± 4.8 years, 69.1 ± 14.3 kg, 156.0 ± 6.5 cm, and 28.3 ± 4.9 to kg.m(-2)) were randomly assigned to perform a RT program for 2 or 3 days per week (G2X = 13 vs. G3X = 14) for 12 weeks followed by 12 weeks of detraining period. One repetition maximum (1RM) tests were used as measures of muscular strength (three exercises, three attempts for each exercise, 3-5 min of rest between attempts, and 5 min of rest between exercises). Advanced oxidized protein products (AOPP) and total radical-trapping antioxidant parameter (TRAP) were used as oxidative stress indicators. Both groups increased muscular strength after 12 weeks of training (P < 0.05) in chest press (G2X = +11.9 % vs. G3X = +27.5 %, P < 0.05), knee extension (G2X = +18.4 % vs. G3X = +16.7 %, P > 0.05), and preacher curl (G2X = +37.6 % vs. G3X = +36.7 %, P > 0.05). On the other hand, 12 weeks of detraining were not sufficient to eliminate the major effects produced by RT on muscular strength, although a significant decrease (P < 0.05) has been observed for chest press (G3X = -9.1 % vs. G2X = -10.2 %, P > 0.05), knee extension (G2X = -14.9 % vs. G3X = -12.1 %, P > 0.05), and preacher curl (G2X = -20.5 % vs. G3X = -17.4 %, P > 0.05). Pre- to post-training, both groups showed significant (P < 0.05) increases in TRAP (G2X = +6.9 % vs. G3X = +15.1 %) with no statistical significant difference between the groups (P > 0.05), and the scores remained elevated compared to pre-training after 12 weeks of detraining. AOPP was not changed by RT or detraining (P > 0.05). The results suggest that a 12-week RT program with a frequency of 2 days per week may be sufficient to improve muscular strength and OS in older women and detraining for 12 weeks does not completely reverse the changes induced by RT. SN - 1574-4647 UR - https://www.unboundmedicine.com/medline/citation/26423425/Effect_of_resistance_training_with_different_frequencies_and_detraining_on_muscular_strength_and_oxidative_stress_biomarkers_in_older_women_ L2 - https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/26423425/ DB - PRIME DP - Unbound Medicine ER -