High-frequency resistance training does not promote greater muscular adaptations compared to low frequencies in young untrained men |
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| Authors: | Cintia Barcelos Felipe Damas Sanmy Rocha Nóbrega Carlos Ugrinowitsch Manoel Emílio Lixandrão Lucas Marcelino Eder Dos Santos |
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| Institution: | 1. MUSCULAB - Laboratory of Neuromuscular Adaptations to Resistance Training, Department of Physical Education, Federal University of S?o Carlos – UFSCar, S?o Carlos, SP, Brazil;2. School of Physical Education and Sport, University of S?o Paulo – USP, S?o Paulo, SP, Brazil |
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| Abstract: | The aim of the study was to compare the effect of resistance training (RT) frequencies of five times (RT5), thrice- (RT3) or twice- (RT2) weekly in muscle strength and hypertrophy in young men. Were used a within-subjects design in which 20 participants had one leg randomly assigned to RT5 and the other to RT3 or to RT2. 1?RM and muscle cross-sectional area (CSA) were assessed at baseline, after four (W4) and eight (W8) RT weeks. RT5 resulted in greater total training volume (TTV) than RT3 and RT2 (P?=?.001). 1?RM increased similarly between protocols at W4 (RT5: 55?±?9?Kg, effect size (ES): 1.18; RT3: 51?±?11?Kg, ES: 0.80; RT2: 54?±?7?Kg, ES: 1.13; P?P?2, ES: 0.54; RT3: 22.0?±?4.6?cm2, ES: 0.19; RT2: ES: 0.25; 23.8?±?3.8?cm2; P?2; ES: 0.69; RT3: 23.6?±?4.2?cm2, ES: 0.58; RT2: 25.5?±?3.7?cm2; ES: 0.70; P?2; RT3: 21.2?±?4.0?cm2; RT2: 22.9?±?3.8?cm2). Performing RT5, RT3 and RT2 a week result in similar muscle strength increase and hypertrophy, despite higher TTV for RT5. |
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| Keywords: | Resistance exercise total load one-repetition maximum muscle cross-sectional area |
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