Does Performing Different Resistance Exercises for the Same Muscle Group Induce Non-homogeneous Hypertrophy?

Bruna Daniella de Vasconcelos Costa; Witalo Kassiano; João Pedro Nunes; Gabriel Kunevaliki; Pâmela Castro-E-Souza; Andre Rodacki; Letícia Trindade Cyrino; Edilson S. Cyrino; Leonardo de Sousa Fortes

doi:10.1055/a-1308-3674

International Journal of Sports Medicine, Inhaltsverzeichnis

Int J Sports Med 2021; 42(09): 803-811
DOI: 10.1055/a-1308-3674

Training & Testing

Does Performing Different Resistance Exercises for the Same Muscle Group Induce Non-homogeneous Hypertrophy?

Bruna Daniella de Vasconcelos Costa

¹Metabolism, Nutrition and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil

,

Witalo Kassiano

¹Metabolism, Nutrition and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil

,

João Pedro Nunes

¹Metabolism, Nutrition and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil

,

Gabriel Kunevaliki

¹Metabolism, Nutrition and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil

,

Pâmela Castro-E-Souza

¹Metabolism, Nutrition and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil

,

Andre Rodacki

²Department of Physical Education, Federal University of Paraná, Curitiba, Brazil

,

Letícia Trindade Cyrino

¹Metabolism, Nutrition and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil

,

Edilson S. Cyrino

¹Metabolism, Nutrition and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil

,

Leonardo de Sousa Fortes

³Department of Physical Education, Federal University of Paraíba, João Pessoa, Brazil

› Institutsangaben

Abstract

The study aimed to compare the effect of performing the same or different exercises for a muscle group on resistance training (RT) sessions on muscle hypertrophy at different sites along muscle length. Twenty-two detrained men (23.3±4.1 years) were randomly allocated to the following groups: a group that performed the same exercises in all training sessions (N-VAR=11) or one that varied the exercises for the same muscle groups (VAR=11). All were submitted to 3 weekly sessions for nine weeks. Muscle thickness was assessed at the proximal, middle, and distal sites of the lateral and anterior thigh, elbow flexors, and extensors by B-mode ultrasound. The VAR group significantly increased all the sites analyzed (P<0.05). Furthermore, the proximal site of the lateral thigh showed a larger relative increase when compared to the middle site (P<0.05). In contrast, the N-VAR group were not revealed significant improvements only for the middle site of the lateral thigh and the proximal site of the elbow flexors (P>0.05). Our results suggest that to perform different resistance exercises can induce hypertrophy of all sites assessed in detrained young men.

Key words

strength training - resistance training - non-uniform hypertrophy - selective hypertrophy - exercise variation

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