[The factors influencing the progression of locomotive syndrome in community-dwelling older adults: focusing on a decline in muscular endurance].

Authors

Yoshinobu Kobayashi

Published in

Nihon Ronen Igakkai zasshi. Japanese journal of geriatrics. Volume 63. Issue 2. Pages 147-153.

Abstract

This study aimed to investigate the relationship between 2-year changes in physical function and the progression of locomotive syndrome (LS) in community-dwelling older adults, focusing on the utility of the 30-second chair stand test (CS-30) as an indicator of muscular endurance.
Among those who participated in the 2021 preventive care classes, 58 older adults who completed follow-up assessments after 2 years were included. The LS stage was assessed using the 25-question Geriatric Locomotive Function Scale (GLFS-25) and a two-step test, and participants were classified into either progression or non-progression (maintenance/improvement) groups. Changes in eight physical function indicators, including grip strength, sit-and-reach test, and the CS-30 score, were calculated. Group comparisons and receiver operating characteristic (ROC) analyses were also performed. A logistic regression analysis was conducted with LS progression as the dependent variable and age as a covariate to evaluate the independent association of the CS-30 changes. The minimal detectable change (MDC) and minimal clinically important difference (MCID) for the CS-30 score were also calculated.
Sixteen participants (27.6%) experienced LS progression. Significant group differences were observed in age, grip strength, sit-and-reach test results, and CS-30 change (p < 0.05). CS-30 showed a moderate predictive ability (AUC = 0.705), with a cutoff of+1 repetitions (sensitivity, 81.2%, specificity, 61.9%). Logistic regression revealed a significant association between the CS-30 change and LS maintenance/improvement (OR 1.24, p = 0.04) after adjusting for age. CS-30 MDC and MCID were 5.64 and 4.00, respectively.
Even a minimal increase in the CS-30 score was associated with LS maintenance and improvement. The CS-30 score may therefore serve as an early predictor of LS progression, independent of age.

PMID:
42366073
Bibliographic data and abstract were imported from PubMed on 29 Jun 2026.

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