Acute effects of low-load resistance exercise with different rest periods on muscle swelling in healthy young men
The effects of high-load resistance training on muscle strength and muscle mass depend on rest periods between sets. However, whether differences in rest period length during low-load resistance exercise (RE) has an influence on improving muscle characteristics remains unclear. Better understanding...
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Japanese Society of Physical Fitness and Sports Medicine
2019-07-01
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doaj-80213db1a8c749bfb1858d19a4b720472021-05-27T00:25:18ZengJapanese Society of Physical Fitness and Sports MedicineJournal of Physical Fitness and Sports Medicine2186-81312186-81232019-07-018416517110.7600/jpfsm.8.165jpfsmAcute effects of low-load resistance exercise with different rest periods on muscle swelling in healthy young menTetsuya Hirono0Tome Ikezoe1Masatoshi Nakamura2Hiroki Tanaka3Jun Umehara4Noriaki Ichihashi5Human Health Sciences, Graduate School of Medicine, Kyoto UniversityHuman Health Sciences, Graduate School of Medicine, Kyoto UniversityInstitute for Human Movement and Medical Sciences, Niigata University of Health and WelfareRehabilitation Unit, Kyoto University HospitalHuman Health Sciences, Graduate School of Medicine, Kyoto UniversityHuman Health Sciences, Graduate School of Medicine, Kyoto UniversityThe effects of high-load resistance training on muscle strength and muscle mass depend on rest periods between sets. However, whether differences in rest period length during low-load resistance exercise (RE) has an influence on improving muscle characteristics remains unclear. Better understanding such effects would enable us to prescribe low-load resistance exercise more safely and effectivity. The purpose of this study was to investigate the acute effects of low-load RE on muscle swelling with different length rest periods between sets. A total of 42 young men (age, 22.9 ± 2.4 years; height, 172.1 ± 5.4 cm; body mass, 65.6 ± 6.5 kg) were recruited to participate in this study. They were assigned to one of three groups with different rest periods between sets (20 s [seconds], 60 s, or 180 s). A total of 12 sets of 10 repetitions of RE with 30% of one repetition maximum on knee extensor muscles were performed. Muscle thickness of the vastus lateralis was measured using ultrasonography as an indicator of muscle swelling every 3 sets. Muscle thickness significantly increased after 3 sets of RE in the 20-s (3.9 ± 3.3%) and 60-s groups (5.9 ± 3.8%), but only after 12 sets in the 180-s group (4.3 ± 3.1%). RE with rest periods shorter than 60 s could result in exercise-induced muscle swelling after fewer sets of RE.https://www.jstage.jst.go.jp/article/jpfsm/8/4/8_165/_pdf/-char/enknee extensorsultrasoundmuscle swellingrest interval |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tetsuya Hirono Tome Ikezoe Masatoshi Nakamura Hiroki Tanaka Jun Umehara Noriaki Ichihashi |
spellingShingle |
Tetsuya Hirono Tome Ikezoe Masatoshi Nakamura Hiroki Tanaka Jun Umehara Noriaki Ichihashi Acute effects of low-load resistance exercise with different rest periods on muscle swelling in healthy young men Journal of Physical Fitness and Sports Medicine knee extensors ultrasound muscle swelling rest interval |
author_facet |
Tetsuya Hirono Tome Ikezoe Masatoshi Nakamura Hiroki Tanaka Jun Umehara Noriaki Ichihashi |
author_sort |
Tetsuya Hirono |
title |
Acute effects of low-load resistance exercise with different rest periods on muscle swelling in healthy young men |
title_short |
Acute effects of low-load resistance exercise with different rest periods on muscle swelling in healthy young men |
title_full |
Acute effects of low-load resistance exercise with different rest periods on muscle swelling in healthy young men |
title_fullStr |
Acute effects of low-load resistance exercise with different rest periods on muscle swelling in healthy young men |
title_full_unstemmed |
Acute effects of low-load resistance exercise with different rest periods on muscle swelling in healthy young men |
title_sort |
acute effects of low-load resistance exercise with different rest periods on muscle swelling in healthy young men |
publisher |
Japanese Society of Physical Fitness and Sports Medicine |
series |
Journal of Physical Fitness and Sports Medicine |
issn |
2186-8131 2186-8123 |
publishDate |
2019-07-01 |
description |
The effects of high-load resistance training on muscle strength and muscle mass depend on rest periods between sets. However, whether differences in rest period length during low-load resistance exercise (RE) has an influence on improving muscle characteristics remains unclear. Better understanding such effects would enable us to prescribe low-load resistance exercise more safely and effectivity. The purpose of this study was to investigate the acute effects of low-load RE on muscle swelling with different length rest periods between sets. A total of 42 young men (age, 22.9 ± 2.4 years; height, 172.1 ± 5.4 cm; body mass, 65.6 ± 6.5 kg) were recruited to participate in this study. They were assigned to one of three groups with different rest periods between sets (20 s [seconds], 60 s, or 180 s). A total of 12 sets of 10 repetitions of RE with 30% of one repetition maximum on knee extensor muscles were performed. Muscle thickness of the vastus lateralis was measured using ultrasonography as an indicator of muscle swelling every 3 sets. Muscle thickness significantly increased after 3 sets of RE in the 20-s (3.9 ± 3.3%) and 60-s groups (5.9 ± 3.8%), but only after 12 sets in the 180-s group (4.3 ± 3.1%). RE with rest periods shorter than 60 s could result in exercise-induced muscle swelling after fewer sets of RE. |
topic |
knee extensors ultrasound muscle swelling rest interval |
url |
https://www.jstage.jst.go.jp/article/jpfsm/8/4/8_165/_pdf/-char/en |
work_keys_str_mv |
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1721425994426875904 |