Hamstring Torque, Velocity and Power Elastic Band Measurements during Hip Extension and Knee Flexion

The quantitative dynamic monitoring of the performance of hamstring muscles during rehabilitation and training cannot currently be undertaken using elastic resistance bands. Hip extension with a fully extended knee involves hamstring agonists, while knee flexion involves only the hamstring. The purp...

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Autores principales:	Dario Santos, Fernando Massa, Jorge Dominguez, Isabel Morales, Juan Del Castillo, Andrea Mattiozzi, Franco Simini
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	hamstring exercise maximum isometric effort maximum velocity Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/a9a77c6e98ed41b6aaf9d54daa9e0629
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spelling	oai:doaj.org-article:a9a77c6e98ed41b6aaf9d54daa9e06292021-11-25T16:30:03ZHamstring Torque, Velocity and Power Elastic Band Measurements during Hip Extension and Knee Flexion10.3390/app1122105092076-3417https://doaj.org/article/a9a77c6e98ed41b6aaf9d54daa9e06292021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10509https://doaj.org/toc/2076-3417The quantitative dynamic monitoring of the performance of hamstring muscles during rehabilitation and training cannot currently be undertaken using elastic resistance bands. Hip extension with a fully extended knee involves hamstring agonists, while knee flexion involves only the hamstring. The purpose of this study is to provide normative values of torque, velocity and power involving hamstring muscles opposing elastic bands. Twenty amateur athletes aged 25.7 ± 4.9, were studied during two motor tasks—hip extension and knee flexion, both isometric & dynamic—with an elastic resistance band and DINABANG portable instrument. We compared the peak isometric torque in hip extension with agonists (2.93 Nm/kg) and without them (1.21 Nm/kg): the difference is significant. The peak angular limb velocity—starting at 50% of the maximum torque—is smaller in hip extension with agonists (215.96°/s) than in a knee flexion without them (452.56°/s). The combination of peak torque and peak velocity estimates power and there is no difference (<i>p</i> = 0.051) with and without agonists: 452.56°Nm/s.kg without agonists and 542.13°Nm/s.kg with them. This study opens the possibility of monitoring torque–velocity–power profiles for hamstring exercise in open chain.Dario SantosFernando MassaJorge DominguezIsabel MoralesJuan Del CastilloAndrea MattiozziFranco SiminiMDPI AGarticlehamstring exercisemaximum isometric effortmaximum velocityTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10509, p 10509 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hamstring exercise maximum isometric effort maximum velocity Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	hamstring exercise maximum isometric effort maximum velocity Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Dario Santos Fernando Massa Jorge Dominguez Isabel Morales Juan Del Castillo Andrea Mattiozzi Franco Simini Hamstring Torque, Velocity and Power Elastic Band Measurements during Hip Extension and Knee Flexion
description	The quantitative dynamic monitoring of the performance of hamstring muscles during rehabilitation and training cannot currently be undertaken using elastic resistance bands. Hip extension with a fully extended knee involves hamstring agonists, while knee flexion involves only the hamstring. The purpose of this study is to provide normative values of torque, velocity and power involving hamstring muscles opposing elastic bands. Twenty amateur athletes aged 25.7 ± 4.9, were studied during two motor tasks—hip extension and knee flexion, both isometric & dynamic—with an elastic resistance band and DINABANG portable instrument. We compared the peak isometric torque in hip extension with agonists (2.93 Nm/kg) and without them (1.21 Nm/kg): the difference is significant. The peak angular limb velocity—starting at 50% of the maximum torque—is smaller in hip extension with agonists (215.96°/s) than in a knee flexion without them (452.56°/s). The combination of peak torque and peak velocity estimates power and there is no difference (<i>p</i> = 0.051) with and without agonists: 452.56°Nm/s.kg without agonists and 542.13°Nm/s.kg with them. This study opens the possibility of monitoring torque–velocity–power profiles for hamstring exercise in open chain.
format	article
author	Dario Santos Fernando Massa Jorge Dominguez Isabel Morales Juan Del Castillo Andrea Mattiozzi Franco Simini
author_facet	Dario Santos Fernando Massa Jorge Dominguez Isabel Morales Juan Del Castillo Andrea Mattiozzi Franco Simini
author_sort	Dario Santos
title	Hamstring Torque, Velocity and Power Elastic Band Measurements during Hip Extension and Knee Flexion
title_short	Hamstring Torque, Velocity and Power Elastic Band Measurements during Hip Extension and Knee Flexion
title_full	Hamstring Torque, Velocity and Power Elastic Band Measurements during Hip Extension and Knee Flexion
title_fullStr	Hamstring Torque, Velocity and Power Elastic Band Measurements during Hip Extension and Knee Flexion
title_full_unstemmed	Hamstring Torque, Velocity and Power Elastic Band Measurements during Hip Extension and Knee Flexion
title_sort	hamstring torque, velocity and power elastic band measurements during hip extension and knee flexion
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a9a77c6e98ed41b6aaf9d54daa9e0629
work_keys_str_mv	AT dariosantos hamstringtorquevelocityandpowerelasticbandmeasurementsduringhipextensionandkneeflexion AT fernandomassa hamstringtorquevelocityandpowerelasticbandmeasurementsduringhipextensionandkneeflexion AT jorgedominguez hamstringtorquevelocityandpowerelasticbandmeasurementsduringhipextensionandkneeflexion AT isabelmorales hamstringtorquevelocityandpowerelasticbandmeasurementsduringhipextensionandkneeflexion AT juandelcastillo hamstringtorquevelocityandpowerelasticbandmeasurementsduringhipextensionandkneeflexion AT andreamattiozzi hamstringtorquevelocityandpowerelasticbandmeasurementsduringhipextensionandkneeflexion AT francosimini hamstringtorquevelocityandpowerelasticbandmeasurementsduringhipextensionandkneeflexion
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Hamstring Torque, Velocity and Power Elastic Band Measurements during Hip Extension and Knee Flexion

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