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BMC Musculoskeletal Disorders
Published in: BMC Musculoskeletal Disorders 1/2019

Open Access 01-12-2019 | Research article

The effect of low-intensity resistance training after heat stress on muscle size and strength of triceps brachii: a randomized controlled trial

Authors: Masatoshi Nakamura, Tomoichi Yoshida, Ryosuke Kiyono, Shigeru Sato, Nobushige Takahashi

Published in: BMC Musculoskeletal Disorders | Issue 1/2019

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Abstract

Background

The purpose of this study was to clarify whether there is a synergistic effect on muscular strength and hypertrophy when low-intensity resistance training is performed after heat stress.

Methods

Thirty healthy young male volunteers were randomly allocated to either the low-intensity resistance training with heat stress group or the control group. The control group performed low-intensity resistance training alone. In the low-intensity resistance training with heat stress group, a hot pack was applied to cover the muscle belly of the triceps brachii for 20 min before the training. The duration of the intervention was 6 weeks. In both groups, the training resistance was 30% of the one repetition maximum, applied in three sets with eight repetitions each and 60-s intervals. The one repetition maximum of elbow extension and muscle thickness of triceps brachii were measured before and after 6 weeks of low intensity resistance training.

Results

There was no significant change in the one-repetition maximum and muscle thickness in the control group, whereas there was a significant increase in the muscle strength and thickness in the low-intensity resistance training with heat stress group.

Conclusion

The combination of heat stress and low-intensity resistance training was an effective method for increasing muscle strength and volume.

Trial registration

University Hospital Medical Information Network Clinical Trials Registry (UMIN000036167; March 11, 2019).
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Metadata
Title
The effect of low-intensity resistance training after heat stress on muscle size and strength of triceps brachii: a randomized controlled trial
Authors
Masatoshi Nakamura
Tomoichi Yoshida
Ryosuke Kiyono
Shigeru Sato
Nobushige Takahashi
Publication date
01-12-2019
Publisher
BioMed Central
Published in
BMC Musculoskeletal Disorders / Issue 1/2019
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/s12891-019-2991-4

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