Proportion and Characteristics of Day Care Rehabilitation Service Users Whose Muscle Mass May Be Overestimated under AWGS2025

January 1, 2026Rigakuryoho KagakuOpen Access

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Key Points

To clarify the proportion and characteristics of day care rehabilitation users whose muscle mass may be overestimated.
Sample included 206 elderly rehabilitation users from Tochigi Prefecture (102 men, 104 women).
Defined overestimation of muscle mass as 'edema without decrease in intracellular water (ICW)'.
Calculated the proportion of muscle mass overestimation and examined associations with comorbidities and physical functions.
The proportion of overestimation was 18.9% (11.8% in men, 26.0% in women).
No significant relationship with comorbidities was observed for both genders.
Users with overestimated muscle mass had significantly higher skeletal muscle mass indices, while men exhibited significantly lower grip strength.

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Analysis reveals muscle mass overestimation in elderly rehabilitation users, suggesting the need for adjusted evaluations.

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YAMAKI et al. (2026) studied this question.

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