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Impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults
This study investigated the effect of home-based shallow and deep squat trainings on knee extension peak torque, muscle thickness, one-repetition maximum (1RM) leg press, and physical function in older individuals. Sixteen participants were randomly assigned to the shallow squat group (SS group; age...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7994411/ https://www.ncbi.nlm.nih.gov/pubmed/33767255 http://dx.doi.org/10.1038/s41598-021-86030-7 |
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author | Yoshiko, Akito Watanabe, Kohei |
author_facet | Yoshiko, Akito Watanabe, Kohei |
author_sort | Yoshiko, Akito |
collection | PubMed |
description | This study investigated the effect of home-based shallow and deep squat trainings on knee extension peak torque, muscle thickness, one-repetition maximum (1RM) leg press, and physical function in older individuals. Sixteen participants were randomly assigned to the shallow squat group (SS group; age, 71.0 ± 4.0 years) or deep squat group (DS group, age; 68.6 ± 3.6 years). Chairs of 40-cm height and chairs with a cushion of 20-cm height (60-cm in total) were used as the depth targets for squats, with participants instructed to sink until their hip touched the chair and cushion. Participants performed four sets of squats per day (35 repetitions per set), three days per week, for 12 weeks at their home. Knee extension peak torque, muscle thickness of quadriceps femoris (e.g., vastus lateralis, rectus femoris, and vastus intermedius), and physical function were measured at weeks 0 (baseline), 4, 8, and 12. Maximal isometric knee extension peak torque, muscle thickness, and walking speed did not change significantly over the 12-week training period in either group (P > 0.05). However, compared with the baseline, there was significant improvement in the results of 30-s sit-to-stand repetition tests after weeks 8 and 12 in both groups (P < 0.05). Additionally, 1RM leg press results were significantly improved after weeks 4 and 12 in the DS group, and weeks 4, 8, and 12 in the SS group (P < 0.05). Results indicate that home-based weight-bearing squat training improves lower limb function in older adults, as well as performance in physical functional tests related to activities of daily living. Moreover, such training benefits older adults regardless of whether squats are shallow or deep. |
format | Online Article Text |
id | pubmed-7994411 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-79944112021-03-29 Impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults Yoshiko, Akito Watanabe, Kohei Sci Rep Article This study investigated the effect of home-based shallow and deep squat trainings on knee extension peak torque, muscle thickness, one-repetition maximum (1RM) leg press, and physical function in older individuals. Sixteen participants were randomly assigned to the shallow squat group (SS group; age, 71.0 ± 4.0 years) or deep squat group (DS group, age; 68.6 ± 3.6 years). Chairs of 40-cm height and chairs with a cushion of 20-cm height (60-cm in total) were used as the depth targets for squats, with participants instructed to sink until their hip touched the chair and cushion. Participants performed four sets of squats per day (35 repetitions per set), three days per week, for 12 weeks at their home. Knee extension peak torque, muscle thickness of quadriceps femoris (e.g., vastus lateralis, rectus femoris, and vastus intermedius), and physical function were measured at weeks 0 (baseline), 4, 8, and 12. Maximal isometric knee extension peak torque, muscle thickness, and walking speed did not change significantly over the 12-week training period in either group (P > 0.05). However, compared with the baseline, there was significant improvement in the results of 30-s sit-to-stand repetition tests after weeks 8 and 12 in both groups (P < 0.05). Additionally, 1RM leg press results were significantly improved after weeks 4 and 12 in the DS group, and weeks 4, 8, and 12 in the SS group (P < 0.05). Results indicate that home-based weight-bearing squat training improves lower limb function in older adults, as well as performance in physical functional tests related to activities of daily living. Moreover, such training benefits older adults regardless of whether squats are shallow or deep. Nature Publishing Group UK 2021-03-25 /pmc/articles/PMC7994411/ /pubmed/33767255 http://dx.doi.org/10.1038/s41598-021-86030-7 Text en © The Author(s) 2021, corrected publication 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Yoshiko, Akito Watanabe, Kohei Impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults |
title | Impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults |
title_full | Impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults |
title_fullStr | Impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults |
title_full_unstemmed | Impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults |
title_short | Impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults |
title_sort | impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7994411/ https://www.ncbi.nlm.nih.gov/pubmed/33767255 http://dx.doi.org/10.1038/s41598-021-86030-7 |
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