Age-related reduction of trunk muscle torque and prevalence of trunk sarcopenia in community-dwelling elderly: Validity of a portable trunk muscle torque measurement instrument and its application to a large sample cohort study

PloS One
Eiji SasakiYasuyuki Ishibashi

Abstract

Trunk muscle weakness and imbalance are risk factors for postural instability, low back pain, and poor postoperative outcomes. The association between trunk muscle strength and aging is poorly understood, and establishing normal reference values is difficult. We aimed to establish the validity of a novel portable trunk muscle torque measurement instrument (PTMI). We then estimated reference data for healthy young adults and elucidated age-related weakness in trunk muscle strength. Twenty-four university students were enrolled to validate values for PTMI, and 816 volunteers from the general population who were recruited to the Iwaki Health Promotion Project were included to estimate reference data for trunk muscle strength. Trunk flexion and extension torque were measured with PTMI and KinCom, and interclass correlation coefficients (ICC) were estimated to evaluate the reliability of PTMI values. Furthermore, from the young adult reference, the age-related reduction in trunk muscle torque and the prevalence of sarcopenia among age-sex groups were estimated. The ICC in flexion and extension torque were 0.807 (p<0.001) and 0.789 (p<0.001), respectively. The prevalence of sarcopenia increased with age, and the prevalence due to fle...Continue Reading

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Citations

Apr 30, 2020·International Journal of Molecular Sciences·Yu-Kai KuoMeng-Huang Wu
Apr 6, 2021·Frontiers in Physiology·Henrique V TaveiraRodrigo L Vancini
Aug 8, 2021·International Journal of Environmental Research and Public Health·Raquel Fábrega-CuadrosAgustín Aibar-Almazán

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Methods Mentioned

BETA
X-ray

Software Mentioned

KinCom

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