5-Repetition Sit-to-Stand Test in Subjects With Chronic Stroke: Reliability and Validity

• Published in: Archives of physical medicine and rehabilitation Vol. 91; no. 3; pp. 407 - 413
• Main Authors: Mong, Yiqin, MSc, Teo, Tilda W., MSc, Ng, Shamay S., PhD
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 01.03.2010; Elsevier
• Subjects: Adult; Biological and medical sciences; Chronic Disease; Cross-Sectional Studies; Disability Evaluation; Diseases of the osteoarticular system; Female; Humans; Male; Medical sciences; Middle Aged; Miscellaneous; Muscle Strength; Muscle Strength Dynamometer; Neurology; Physical Medicine and Rehabilitation; Postural Balance; Posture; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects); Recovery of Function; Rehabilitation; Reproducibility of Results; ROC Curve; Stroke; Stroke - classification; Stroke Rehabilitation; Vascular diseases and vascular malformations of the nervous system; 5-repetition STS test; Stroke; area under the receiver operating characteristic curve; MVL; RT; Muscle strength; COP; ICC; movement velocity; 5-repetition sit-to-stand test; maximum excursion; AUC; LOS; limits of stability; BBS; Berg Balance Scale; intraclass correlation coefficient; reaction time; Rehabilitation; MXE; center of pressure; Human; Nervous system diseases; Cardiovascular disease; Cerebral disorder; Vascular disease; Validity; Chronic; Reeducation; Orthopedics; Central nervous system disease; Reliability; Cerebrovascular disease
• ISSN: 0003-9993; 1532-821X
• DOI: 10.1016/j.apmr.2009.10.030

Abstract Mong Y, Teo TW, Ng SS. 5-repetition sit-to-stand test in subjects with chronic stroke: reliability and validity. Objectives To examine the (1) intrarater, interrater, and test-retest reliability of the 5-repetition sit-to-stand test (5-repetition STS test) scores, (2) correlation of 5-repetition STS test scores with lower-limb muscle strength and balance performance, and (3) cut-off scores among the 3 groups of subjects: the young, the healthy elderly, and subjects with stroke. Design Cross-sectional study. Setting University-based rehabilitation center. Participants A convenience sample of 36 subjects: 12 subjects with chronic stroke, 12 healthy elderly subjects, and 12 young subjects. Interventions Not applicable. Main Outcome Measures 5-Repetition STS test time scores; hand-held dynamometer measurements of hip flexors, and knee flexors and extensors; ankle dorsiflexors and plantarflexors muscle strength; Berg Balance Scale (BBS); and limits of stability (LOS) test using dynamic posturography. Results Excellent intrarater reliability of intraclass correlation coefficient (ICC) (range, .970–.976), interrater reliability (ICC=.999), and test-retest reliability (ICC range, .989–.999) were found. Five-repetition STS test scores were also found to be significantly associated with the muscle strength of affected and unaffected knee flexors (ρ=–.753 to –.830; P <.00556) of the subjects with stroke. No significant associations were found between 5-repetition STS test and BBS and LOS tests in subjects with stroke. Cut-off scores of 12 seconds were found to be discriminatory between healthy elderly and subjects with stroke at a sensitivity of 83% and specificity of 75%. Conclusions The 5-repetition STS test is a reliable measurement tool that correlates with knee flexors muscle strength but not balance ability in subjects with stroke.