Modified 30-Second Sit-to-Stand Test: Reliability and Validity in Older Adults Unable to Complete Traditional Sit-to-Stand Testing.

Journal of Geriatric Physical Therapy
Linda S McAllister, Kerstin M Palombaro

Abstract

Sit-to-stand tests measure a clinically relevant function and are widely used in older adult populations. The modified 30-second sit-to-stand test (m30STS) overcomes the floor effect of other sit-to-stand tests observed in physically challenged older adults. The purpose of this study was to examine interrater and test-retest intrarater reliability for the m30STS for older adults. In addition, convergent validity of the m30STS, as well as responsiveness to change, was examined in older adults undergoing rehabilitation. In phase I, 7 older adult participants were filmed performing the m30STS. The m30STS was standardized to allow hand support during the rise to and descent from standing but required participants to let go of the armrests with each stand. Ten physical therapists and physical therapist assistants independently scored the filmed m30STS twice, with 21 days separating the scoring sessions. In phase II, 33 older adults with comorbidities admitted to physical therapy services at a skilled nursing facility were administered the m30STS, Berg Balance Scale, handheld dynamometry of knee extensors, and the modified Barthel Index at initial examination and discharge. In phase I, the m30STS was found to be reliable. Interrater ...Continue Reading

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