Age-related changes in concentric and eccentric isokinetic peak torque of the trunk muscles in healthy older versus younger men

Alexander David Francis Dallaway; John  Hattersley; Jason Tallis; Derek Renshaw; Corbin Griffen; Michael Duncan

doi:10.1123/japa.2020-0421

Age-related changes in concentric and eccentric isokinetic peak torque of the trunk muscles in healthy older versus younger men

Alexander David Francis Dallaway, John Hattersley, Jason Tallis, Derek Renshaw, Corbin Griffen, Michael Duncan

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2 Citations (Scopus)

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Abstract

This study investigated age-related changes in trunk muscle function in healthy men and the moderating effect of physical activity. Twelve older (67.3 ± 6.0 years) and 12 younger (24.7 ± 3.1 years) men performed isokinetic trunk flexion and extension tests across a range of angular velocities (15°/s-180°/s) and contractile modes (concentric and eccentric). For concentric trunk extension, mixed-effects analysis of covariance revealed a significant interaction between Angular velocity × Age group (p = .026) controlling for physical activity. Follow-up univariate analysis of covariance revealed that the younger group produced significantly greater peak torque for all concentric extension conditions. Eccentric trunk strength was somewhat preserved in the older group. Age-related changes in trunk strength were independent of physical activity. The normal loss of trunk muscle strength in older age is muscle- and contractile-mode specific. These findings provide guidance for effective intervention strategies to offset adverse health outcomes related to trunk strength loss in older adults.

Original language	English
Pages (from-to)	941-951
Number of pages	11
Journal	Journal of Aging and Physical Activity
Volume	29
Early online date	30 Apr 2021
DOIs	https://doi.org/10.1123/japa.2020-0421
Publication status	Published - 1 Dec 2021

Bibliographical note

Accepted author manuscript version reprinted, by permission, from Journal of Aging and Physical Activity, 2021, https://doi.org/10.1123/japa.2020-0421 © Human Kinetics, Inc.

Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

Keywords

muscle strength
ageing
sarcopenia
abdominal muscles
paravertebral muscles

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Post-PrintAccepted author manuscript, 373 KBLicence: Unspecified

Cite this

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title = "Age-related changes in concentric and eccentric isokinetic peak torque of the trunk muscles in healthy older versus younger men",

abstract = "This study investigated age-related changes in trunk muscle function in healthy men and the moderating effect of physical activity. Twelve older (67.3 ± 6.0 years) and 12 younger (24.7 ± 3.1 years) men performed isokinetic trunk flexion and extension tests across a range of angular velocities (15°/s-180°/s) and contractile modes (concentric and eccentric). For concentric trunk extension, mixed-effects analysis of covariance revealed a significant interaction between Angular velocity × Age group (p = .026) controlling for physical activity. Follow-up univariate analysis of covariance revealed that the younger group produced significantly greater peak torque for all concentric extension conditions. Eccentric trunk strength was somewhat preserved in the older group. Age-related changes in trunk strength were independent of physical activity. The normal loss of trunk muscle strength in older age is muscle- and contractile-mode specific. These findings provide guidance for effective intervention strategies to offset adverse health outcomes related to trunk strength loss in older adults.",

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note = "Accepted author manuscript version reprinted, by permission, from Journal of Aging and Physical Activity, 2021, https://doi.org/10.1123/japa.2020-0421 {\textcopyright} Human Kinetics, Inc. Copyright {\textcopyright} and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders. ",

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AU - Duncan, Michael

N1 - Accepted author manuscript version reprinted, by permission, from Journal of Aging and Physical Activity, 2021, https://doi.org/10.1123/japa.2020-0421 © Human Kinetics, Inc. Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

PY - 2021/12/1

Y1 - 2021/12/1

N2 - This study investigated age-related changes in trunk muscle function in healthy men and the moderating effect of physical activity. Twelve older (67.3 ± 6.0 years) and 12 younger (24.7 ± 3.1 years) men performed isokinetic trunk flexion and extension tests across a range of angular velocities (15°/s-180°/s) and contractile modes (concentric and eccentric). For concentric trunk extension, mixed-effects analysis of covariance revealed a significant interaction between Angular velocity × Age group (p = .026) controlling for physical activity. Follow-up univariate analysis of covariance revealed that the younger group produced significantly greater peak torque for all concentric extension conditions. Eccentric trunk strength was somewhat preserved in the older group. Age-related changes in trunk strength were independent of physical activity. The normal loss of trunk muscle strength in older age is muscle- and contractile-mode specific. These findings provide guidance for effective intervention strategies to offset adverse health outcomes related to trunk strength loss in older adults.

AB - This study investigated age-related changes in trunk muscle function in healthy men and the moderating effect of physical activity. Twelve older (67.3 ± 6.0 years) and 12 younger (24.7 ± 3.1 years) men performed isokinetic trunk flexion and extension tests across a range of angular velocities (15°/s-180°/s) and contractile modes (concentric and eccentric). For concentric trunk extension, mixed-effects analysis of covariance revealed a significant interaction between Angular velocity × Age group (p = .026) controlling for physical activity. Follow-up univariate analysis of covariance revealed that the younger group produced significantly greater peak torque for all concentric extension conditions. Eccentric trunk strength was somewhat preserved in the older group. Age-related changes in trunk strength were independent of physical activity. The normal loss of trunk muscle strength in older age is muscle- and contractile-mode specific. These findings provide guidance for effective intervention strategies to offset adverse health outcomes related to trunk strength loss in older adults.

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Age-related changes in concentric and eccentric isokinetic peak torque of the trunk muscles in healthy older versus younger men

Abstract

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Keywords

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