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

Research output: Contribution to journalArticlepeer-review

Abstract

This study investigated age-related changes in trunk muscle function in healthy men and the moderating effect of physical activity (PA).
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-1 - 180°·s-1) and contractile modes (concentric and eccentric).
For concentric trunk extension, mixed-effects ANCOVA revealed a significant interaction between angular velocity x age group (p=.026) controlling for PA. Follow-up univariate ANCOVA 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 PA.
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 languageEnglish
Pages (from-to)(In-press)
JournalJournal of Aging and Physical Activity
Volume(In-press)
Publication statusAccepted/In press - 10 Dec 2020

Keywords

  • muscle strength
  • ageing
  • sarcopenia
  • abdominal muscles
  • paravertebral muscles

Fingerprint Dive into the research topics of 'Age-related changes in concentric and eccentric isokinetic peak torque of the trunk muscles in healthy older versus younger men'. Together they form a unique fingerprint.

Cite this