Validity, Test-Retest Reliability, and Learning Effect on the 1-Minute Sit-To-Stand Test in Individuals With Heart Failure.
(2026) Archives of Physical Medicine and Rehabilitation — Vol. 107, n° 3, p. 481-487 (2026)
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- (en) OBJECTIVE: To evaluate the reliability, the minimally important difference (MID), and the learning effect of the 1-minute sit-to-stand test (1STST) in assessing functional exercise capacity in patients with heart failure (HF). DESIGN: A cross-sectional study. SETTING: Two hospitals. PARTICIPANTS: Patients with an HF (N=47) diagnosis by a cardiologist following the 2021 European Society of Cardiology HF guideline. Most participants were men (60%). Most participants had a normal body mass index (62%). All participants were classified as having New York Heart Association Functional Class II or III. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Each patient performed a 6-minute walk test (6MWT) and 2 1STSTs on 2 occasions spaced 1 month apart. Test-retest reliability between occasions was evaluated using the intraclass correlation coefficient (ICC), Bland-Altman plot analysis, and linear regression. The MID was determined using a distribution-based method. To assess the learning effect, we conducted a paired t test comparing the 2 1STSTs on each occasion, and the magnitude of the learning effect was quantified using Cohen's d. The correlation between the 1STST and 6MWT was performed to confirm validity. RESULTS: The 1STST showed good test-retest reliability (ICC=0.98, P<.001) with good agreement between the 2 measurements, without proportional bias (P>.05). The MID was 1.1 repetitions. A learning effect of the 1STST was observed (P<.001) with a large effect size when repeated a month later (Cohen's d>0.8). The 1STST strongly correlated with the 6MWT (r=0.74, P=.01). CONCLUSIONS: The 1STST is a valid and reliable measure of functional exercise capacity in patients with HF. Because of the learning effect, this study recommended performing 2 trials to capture the true value.
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Nguyen, N.-M., Le, H. T., Ngo, B.-L. T., Truong, H. P., Reychler, G., & Deboeck, G. (2026). Validity, Test-Retest Reliability, and Learning Effect on the 1-Minute Sit-To-Stand Test in Individuals With Heart Failure. Archives of Physical Medicine and Rehabilitation, 107(3), 481-487. https://doi.org/10.1016/j.apmr.2025.05.004 (Original work published 2026)