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ABSTRACT: Backgrounds
One-leg standing time (OLST) has been frequently used physical performance measure; however, what muscular characteristics OLST represents remains uncertain.Aim
This cross-sectional study aimed to investigate the association between OLST and muscle characteristics to clarify the possibility of using OLST as a physical performance measure.Methods
Study participants comprised 1144 older adults aged 65 years or older. Computed tomography images provided mid-thigh skeletal muscle cross-sectional area and mean attenuation value. OLST was measured for a maximum of 60 s. Static postural instability was assessed using a posturography.Results
A frequency of OLST < 20 s was increased by quartiles of muscle cross-sectional area (Q1: 33.6, Q2: 12.8, Q3: 13.6, Q4: 11.9%, P < 0.001) and mean attenuation value (Q1: 32.3, Q2: 21.7, Q3: 14.3, Q4: 7.7%, P < 0.001). Results of the multinomial regression analysis indicated that muscle cross-sectional area and mean attenuation value were independently associated with an OLST of less than 20 s. The crude odds ratio of OLST less than 20 s for the lowest quartiles of both cross-sectional area and mean attenuation value was 4.19 (95% CI: 3.01 - 5.84). The cross-sectional area of muscles with greater fat deposition was inversely associated with OLST, while that with smaller fat deposition showed a positive association with OLST, indicating why mean attenuation value and cross-sectional area were independently associated with OLST. No clear relationship was observed with static postural instability.Conclusion
OLST was a simply measurable quantifiable physical measure representing the loss of muscle mass and quality in older adults.
SUBMITTER: Tabara Y
PROVIDER: S-EPMC10821963 | biostudies-literature | 2024 Jan
REPOSITORIES: biostudies-literature
Tabara Yasuharu Y Okada Yoko Y Ochi Masayuki M Ohyagi Yasumasa Y Igase Michiya M
Aging clinical and experimental research 20240128 1
<h4>Backgrounds</h4>One-leg standing time (OLST) has been frequently used physical performance measure; however, what muscular characteristics OLST represents remains uncertain.<h4>Aim</h4>This cross-sectional study aimed to investigate the association between OLST and muscle characteristics to clarify the possibility of using OLST as a physical performance measure.<h4>Methods</h4>Study participants comprised 1144 older adults aged 65 years or older. Computed tomography images provided mid-thigh ...[more]