Reliability of Physical Capacity Measurement (Self-Sustained Movement test) of Participants in a Program for Prevention of Dependence on Long-Term Care Insurance

[Purpose] The test-retest reproducibility, construct validity, and safety of a "self-sustained movement test" were examined to verify the reliability of physical capacity measurement by participants in a program designed to prevent dependence on long-term care insurance. [Subjects] The subjects of the study were 129 community-dwelling elderly and 48 elderly with light care requirements. [Methods] The interclass correlation coefficient between test-retest was examined. The construct validity of the test was investigated through an examination of the correlations between the self-sustained movement test and other motor function measurements. The safety of the test was examined by a risk assessment. [Results] The interclass correlation coefficient of test-retest was more than 0.75 for each task, indicating the high reproducibility of the test. The correlation between the self-sustained movement test and other motor function measurements were from 0.39 to 0.92 for walking tests and the timed up-and-go test and from -0.36 to -0.45 for one-legged standing with eyes open. [Conclusion] We judged that the self-sustained movement test was a high reliability test because the reproducibility and construct validity of the test were confirmed for the participants in the program for the prevention of dependence on long-term care insurance.