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Contribution of Lower Extremity Joints on Energy Absorption during Soft Landing
Soft landing after jumping is associated with the prevention of lower extremity injuries during sports activities in terms of the energy absorption mechanisms. In this study, the contribution of lower extremity joints during soft landing was investigated. Subjects comprised 20 healthy females. Kinet...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8151821/ https://www.ncbi.nlm.nih.gov/pubmed/34066090 http://dx.doi.org/10.3390/ijerph18105130 |
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author | Tamura, Akihiro Akasaka, Kiyokazu Otsudo, Takahiro |
author_facet | Tamura, Akihiro Akasaka, Kiyokazu Otsudo, Takahiro |
author_sort | Tamura, Akihiro |
collection | PubMed |
description | Soft landing after jumping is associated with the prevention of lower extremity injuries during sports activities in terms of the energy absorption mechanisms. In this study, the contribution of lower extremity joints during soft landing was investigated. Subjects comprised 20 healthy females. Kinetics and kinematics data were obtained during drop vertical jumps using a three-dimensional motion analysis system. Negative mechanical work values in the lower extremity joints were calculated during landing. A multiple regression analysis was performed to determine which lower extremity joints contributed more in achieving soft landing. The means of mechanical work of the hip, knee, and ankle in the sagittal plane were −0.30 ± 0.17, −0.62 ± 0.31, and −1.03 ± 0.22 J/kg, respectively. Results showed that negative mechanical work in the hip and knee is effective in achieving soft landing. These findings indicate that energy absorption in the hip and knee joints might be an important factor in achieving soft landing, whereas that in the ankle has a negative effect. Therefore, when improving soft landing techniques, we should consider energy absorption in the hip and knee via eccentric activation of the hip and knee extensors during landing. |
format | Online Article Text |
id | pubmed-8151821 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-81518212021-05-27 Contribution of Lower Extremity Joints on Energy Absorption during Soft Landing Tamura, Akihiro Akasaka, Kiyokazu Otsudo, Takahiro Int J Environ Res Public Health Article Soft landing after jumping is associated with the prevention of lower extremity injuries during sports activities in terms of the energy absorption mechanisms. In this study, the contribution of lower extremity joints during soft landing was investigated. Subjects comprised 20 healthy females. Kinetics and kinematics data were obtained during drop vertical jumps using a three-dimensional motion analysis system. Negative mechanical work values in the lower extremity joints were calculated during landing. A multiple regression analysis was performed to determine which lower extremity joints contributed more in achieving soft landing. The means of mechanical work of the hip, knee, and ankle in the sagittal plane were −0.30 ± 0.17, −0.62 ± 0.31, and −1.03 ± 0.22 J/kg, respectively. Results showed that negative mechanical work in the hip and knee is effective in achieving soft landing. These findings indicate that energy absorption in the hip and knee joints might be an important factor in achieving soft landing, whereas that in the ankle has a negative effect. Therefore, when improving soft landing techniques, we should consider energy absorption in the hip and knee via eccentric activation of the hip and knee extensors during landing. MDPI 2021-05-12 /pmc/articles/PMC8151821/ /pubmed/34066090 http://dx.doi.org/10.3390/ijerph18105130 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Tamura, Akihiro Akasaka, Kiyokazu Otsudo, Takahiro Contribution of Lower Extremity Joints on Energy Absorption during Soft Landing |
title | Contribution of Lower Extremity Joints on Energy Absorption during Soft Landing |
title_full | Contribution of Lower Extremity Joints on Energy Absorption during Soft Landing |
title_fullStr | Contribution of Lower Extremity Joints on Energy Absorption during Soft Landing |
title_full_unstemmed | Contribution of Lower Extremity Joints on Energy Absorption during Soft Landing |
title_short | Contribution of Lower Extremity Joints on Energy Absorption during Soft Landing |
title_sort | contribution of lower extremity joints on energy absorption during soft landing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8151821/ https://www.ncbi.nlm.nih.gov/pubmed/34066090 http://dx.doi.org/10.3390/ijerph18105130 |
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