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Changes in Muscle Thickness after 8 Weeks of Strength Training, Electromyostimulation, and Both Combined in Healthy Young Adults.

Authors
  • Matos, Filipe1, 2, 3
  • Amaral, João1, 3
  • Martinez, Eduardo1
  • Canário-Lemos, Rui1, 3
  • Moreira, Tiago1, 3
  • Cavalcante, Jurandir3, 4
  • Peixoto, Rafael1, 3
  • Pinheiro, Bruno Nobre3, 4
  • Junior, Lino Scipião3, 4
  • Uchoa, Paulo3, 4
  • Garrido, Nuno1, 2
  • Reis, Victor Machado1, 2, 3
  • Monteiro, Gabriéla Matos1, 3
  • Vilaça-Alves, José1, 2, 3
  • 1 Sport Sciences Department, University of Trás-os-Montes & Alto Douro, 5000-801 Vila Real, Portugal. , (Portugal)
  • 2 Research Centre in Sports Sciences, Health Sciences and Human Development, CIDESD, 5000-801 Vila Real, Portugal. , (Portugal)
  • 3 Study Group in Strength Training and Fitness Activities (GEETFAA), 5000-801 Vila Real, Portugal. , (Portugal)
  • 4 University Center FAMETRO (UNIFAMETRO), Physical Education Course, Fortaleza 60010-470, Brazil. , (Brazil)
Type
Published Article
Journal
International Journal of Environmental Research and Public Health
Publisher
MDPI AG
Publication Date
Mar 08, 2022
Volume
19
Issue
6
Identifiers
DOI: 10.3390/ijerph19063184
PMID: 35328871
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

The aim of this study was to verify and compare the effects of electromyostimulation training (EMS), strength training (ST), and both combined (STEMS), through the analysis of the elbow flexors muscle thickness. Forty subjects (24.45 ± 3.53 years), were randomly divided equally in 4 groups: 3 experimental groups and 1 control group. Each experimental group was submitted to one of three interventions, either an ST protocol, an EMS protocol, or a STEMS protocol. The control group (CG) did not perform any type of physical activity. Ultrasonography (US) was used to measure muscle thickness (MT) at 50 and 60% of the distance between the acromion and the olecranon. The results showed a significant difference in the elbow flexors muscle thickness after 8 weeks, both in the STG, EMSG, and STEMSG, but not in the CG. However, no significant differences were observed between the intervention protocols. It seems that an increase in MT can be obtained using either with ST, EMS, or both combined, however, the results doesn't support the overlap of one method in relation to the others. EMS can be another interesting tool to induce muscle hypertrophy, but not necessarily better.

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