Procedures and measurement properties of the 6-min step test: A systematic review with clinical recommendations.

SAFETY; MEDICAL information storage & retrieval systems; MULTITRAIT multimethod techniques; SPORTS; RESEARCH funding; CINAHL database; RESEARCH evaluation; GAIT in humans; INFORMATION storage & retrieval systems; SYSTEMATIC reviews; MEDLINE; STATISTICAL reliability; INTRACLASS correlation; EXERCISE tests; CONFIDENCE intervals; INTER-observer reliability

Objective: To provide information regarding the procedures, safety, tolerability, and measurement properties of the 6-min step test. Data sources: MEDLINE, EMBASE, CINAHL, and SPORTDiscus (from inception until January 2024). Review methods: Studies that examined adults with acute or chronic diseases, and outcomes related to procedures, safety, tolerability, or measurement properties of the 6-min step test were included. Outcome data were summarized and combined in meta-analyses. The quality of included studies was assessed by the Consensus-based Standards for the selection of health Measurement Instruments checklist, and the quality of evidence was determined according to the Grading of Recommendations Assessment, Development, and Evaluation system. Results: Fourteen studies, involving 847 participants, were included. All studies performed the 6-min step test in 6 min; however, some studies varied the step height and the use of upper limb support. The test appears to be safe and well tolerated by individuals. Moderate- to high-quality evidence demonstrated appropriate results for test-retest reliability (4 studies; Intraclass correlation coefficient 0.96; 95% CI 0.91–0.98; n = 125), criterion validity (4 studies; r = 0.53; 95% CI 0.30–0.71; n = 307), and construct validity (4 studies; r = 0.63; 95% CI 0.52–0.73; n = 233). Conclusion: This review provides recommendations for applying the 6-min step test in clinical and research settings. No adverse events were reported, and the test appears to be well tolerated. Adequate results were found for test-retest reliability, criterion validity, and construct validity. Review Registration: PROSPERO (CRD42022347744). [ABSTRACT FROM AUTHOR]

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