Peak torque, rate of torque development and average torque of isometric ankle and elbow contractions show excellent test–retest reliability
Background: Peak Torque (PT), Rate of Torque Development (RTD) and Average Torque (AT) over a single contraction assess the three components of muscle function during isometric contractions. Surprisingly, AT has never been reported or its reliability confirmed. Objectives: This study aims to establi...
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doaj-ca382de23f324bd5b316ed14cb56b9322020-11-25T02:46:33ZengWorld Scientific PublishingHong Kong Physiotherapy Journal1013-70251876-441X2019-06-01391677610.1142/S101370251950006910.1142/S1013702519500069Peak torque, rate of torque development and average torque of isometric ankle and elbow contractions show excellent test–retest reliabilityDaniel Simpson0Monika Ehrensberger1Christopher Nulty2Joanne Regan3Patrick Broderick4Catherine Blake5Kenneth Monaghan6Clinical Health & Nutrition Centre (CHANCE), School of Science, Institute of Technology, Sligo, IrelandClinical Health & Nutrition Centre (CHANCE), School of Science, Institute of Technology, Sligo, IrelandClinical Health & Nutrition Centre (CHANCE), School of Science, Institute of Technology, Sligo, IrelandClinical Health & Nutrition Centre (CHANCE), School of Science, Institute of Technology, Sligo, IrelandClinical Health & Nutrition Centre (CHANCE), School of Science, Institute of Technology, Sligo, IrelandSchool of Public Health, Physiotherapy & Sports Science, University College Dublin, IrelandClinical Health & Nutrition Centre (CHANCE), School of Science, Institute of Technology, Sligo, IrelandBackground: Peak Torque (PT), Rate of Torque Development (RTD) and Average Torque (AT) over a single contraction assess the three components of muscle function during isometric contractions. Surprisingly, AT has never been reported or its reliability confirmed. Objectives: This study aims to establish protocol reliability for ankle dorsiflexion and elbow extension isometric muscle function (PT, RTD, AT) in healthy participants using the Biodex System 3 Dynamometer. Methods: Twelve participants (6 male, 6 female, mean age 39.8±16.0 years) performed four maximal isometric contractions on two occasions. Intraclass Correlation Coefficient (ICC), Typical Error (TE) and Coefficient of Variation (CV) for PT, RTD and AT were reported. Results: The ICC for all strength parameters varied from 0.98–0.92. TE for ankle dorsiflexion PT was 1.38Nm, RTD 7.43Nm/s and AT 1.33Nm, CV varied from 6.26±6.25% to 11.72±8.27%. For elbow extension, TE was 3.36Nm for PT, 14.87Nm/s for RTD and 3.03Nm for AT, CV varied from 5.97±4.52% to 18.46±14.78%. Conclusion: Maximal isometric ankle dorsiflexion and elbow extension PT, RTD and AT can be evaluated with excellent reliability when following the described protocol. This testing procedure, including the application of AT, can be confidently applied in research, exercise or clinical settings.http://www.worldscientific.com/doi/pdf/10.1142/S1013702519500069Reliabilitystrength testingBiodex system 3ankle dorsiflexionelbow extension |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Daniel Simpson Monika Ehrensberger Christopher Nulty Joanne Regan Patrick Broderick Catherine Blake Kenneth Monaghan |
spellingShingle |
Daniel Simpson Monika Ehrensberger Christopher Nulty Joanne Regan Patrick Broderick Catherine Blake Kenneth Monaghan Peak torque, rate of torque development and average torque of isometric ankle and elbow contractions show excellent test–retest reliability Hong Kong Physiotherapy Journal Reliability strength testing Biodex system 3 ankle dorsiflexion elbow extension |
author_facet |
Daniel Simpson Monika Ehrensberger Christopher Nulty Joanne Regan Patrick Broderick Catherine Blake Kenneth Monaghan |
author_sort |
Daniel Simpson |
title |
Peak torque, rate of torque development and average torque of isometric ankle and elbow contractions show excellent test–retest reliability |
title_short |
Peak torque, rate of torque development and average torque of isometric ankle and elbow contractions show excellent test–retest reliability |
title_full |
Peak torque, rate of torque development and average torque of isometric ankle and elbow contractions show excellent test–retest reliability |
title_fullStr |
Peak torque, rate of torque development and average torque of isometric ankle and elbow contractions show excellent test–retest reliability |
title_full_unstemmed |
Peak torque, rate of torque development and average torque of isometric ankle and elbow contractions show excellent test–retest reliability |
title_sort |
peak torque, rate of torque development and average torque of isometric ankle and elbow contractions show excellent test–retest reliability |
publisher |
World Scientific Publishing |
series |
Hong Kong Physiotherapy Journal |
issn |
1013-7025 1876-441X |
publishDate |
2019-06-01 |
description |
Background: Peak Torque (PT), Rate of Torque Development (RTD) and Average Torque (AT) over a single contraction assess the three components of muscle function during isometric contractions. Surprisingly, AT has never been reported or its reliability confirmed.
Objectives: This study aims to establish protocol reliability for ankle dorsiflexion and elbow extension isometric muscle function (PT, RTD, AT) in healthy participants using the Biodex System 3 Dynamometer.
Methods: Twelve participants (6 male, 6 female, mean age 39.8±16.0 years) performed four maximal isometric contractions on two occasions. Intraclass Correlation Coefficient (ICC), Typical Error (TE) and Coefficient of Variation (CV) for PT, RTD and AT were reported.
Results: The ICC for all strength parameters varied from 0.98–0.92. TE for ankle dorsiflexion PT was 1.38Nm, RTD 7.43Nm/s and AT 1.33Nm, CV varied from 6.26±6.25% to 11.72±8.27%. For elbow extension, TE was 3.36Nm for PT, 14.87Nm/s for RTD and 3.03Nm for AT, CV varied from 5.97±4.52% to 18.46±14.78%.
Conclusion: Maximal isometric ankle dorsiflexion and elbow extension PT, RTD and AT can be evaluated with excellent reliability when following the described protocol. This testing procedure, including the application of AT, can be confidently applied in research, exercise or clinical settings. |
topic |
Reliability strength testing Biodex system 3 ankle dorsiflexion elbow extension |
url |
http://www.worldscientific.com/doi/pdf/10.1142/S1013702519500069 |
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