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Muscle Length of the Hamstrings Using Ultrasonography Versus Musculoskeletal Modelling
Muscle morphology is an important contributor to hamstring muscle injury and malfunction. The aim of this study was to examine if hamstring muscle-tendon lengths differ between various measurement methods as well as if passive length changes differ between individual hamstrings. The lengths of bicep...
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/PMC8006252/ https://www.ncbi.nlm.nih.gov/pubmed/33809069 http://dx.doi.org/10.3390/jfmk6010026 |
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author | Kellis, Eleftherios Konstantinidou, Athina Ellinoudis, Athanasios |
author_facet | Kellis, Eleftherios Konstantinidou, Athina Ellinoudis, Athanasios |
author_sort | Kellis, Eleftherios |
collection | PubMed |
description | Muscle morphology is an important contributor to hamstring muscle injury and malfunction. The aim of this study was to examine if hamstring muscle-tendon lengths differ between various measurement methods as well as if passive length changes differ between individual hamstrings. The lengths of biceps femoris long head (BFlh), semimembranosus (SM), and semitendinosus (ST) of 12 healthy males were determined using three methods: Firstly, by identifying the muscle attachments using ultrasound (US) and then measuring the distance on the skin using a flexible ultrasound tape (TAPE-US). Secondly, by scanning each muscle using extended-field-of view US (EFOV-US) and, thirdly, by estimating length using modelling equations (MODEL). Measurements were performed with the participant relaxed at six combinations of hip (0°, 90°) and knee (0°, 45°, and 90°) flexion angles. The MODEL method showed greater BFlh and SM lengths as well as changes in length than US methods. EFOV-US showed greater ST and SM lengths than TAPE-US (p < 0.05). SM length change across all joint positions was greater than BFlh and ST (p < 0.05). Hamstring length predicted using regression equations is greater compared with those measured using US-based methods. The EFOV-US method yielded greater ST and SM length than the TAPE-US method. SM showed the highest change in length at different hip and knee joint positions. |
format | Online Article Text |
id | pubmed-8006252 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-80062522021-07-21 Muscle Length of the Hamstrings Using Ultrasonography Versus Musculoskeletal Modelling Kellis, Eleftherios Konstantinidou, Athina Ellinoudis, Athanasios J Funct Morphol Kinesiol Article Muscle morphology is an important contributor to hamstring muscle injury and malfunction. The aim of this study was to examine if hamstring muscle-tendon lengths differ between various measurement methods as well as if passive length changes differ between individual hamstrings. The lengths of biceps femoris long head (BFlh), semimembranosus (SM), and semitendinosus (ST) of 12 healthy males were determined using three methods: Firstly, by identifying the muscle attachments using ultrasound (US) and then measuring the distance on the skin using a flexible ultrasound tape (TAPE-US). Secondly, by scanning each muscle using extended-field-of view US (EFOV-US) and, thirdly, by estimating length using modelling equations (MODEL). Measurements were performed with the participant relaxed at six combinations of hip (0°, 90°) and knee (0°, 45°, and 90°) flexion angles. The MODEL method showed greater BFlh and SM lengths as well as changes in length than US methods. EFOV-US showed greater ST and SM lengths than TAPE-US (p < 0.05). SM length change across all joint positions was greater than BFlh and ST (p < 0.05). Hamstring length predicted using regression equations is greater compared with those measured using US-based methods. The EFOV-US method yielded greater ST and SM length than the TAPE-US method. SM showed the highest change in length at different hip and knee joint positions. MDPI 2021-03-12 /pmc/articles/PMC8006252/ /pubmed/33809069 http://dx.doi.org/10.3390/jfmk6010026 Text en © 2021 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kellis, Eleftherios Konstantinidou, Athina Ellinoudis, Athanasios Muscle Length of the Hamstrings Using Ultrasonography Versus Musculoskeletal Modelling |
title | Muscle Length of the Hamstrings Using Ultrasonography Versus Musculoskeletal Modelling |
title_full | Muscle Length of the Hamstrings Using Ultrasonography Versus Musculoskeletal Modelling |
title_fullStr | Muscle Length of the Hamstrings Using Ultrasonography Versus Musculoskeletal Modelling |
title_full_unstemmed | Muscle Length of the Hamstrings Using Ultrasonography Versus Musculoskeletal Modelling |
title_short | Muscle Length of the Hamstrings Using Ultrasonography Versus Musculoskeletal Modelling |
title_sort | muscle length of the hamstrings using ultrasonography versus musculoskeletal modelling |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8006252/ https://www.ncbi.nlm.nih.gov/pubmed/33809069 http://dx.doi.org/10.3390/jfmk6010026 |
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