Why the study?
Alternative tests like the 5-STS and 30sSTS may assess cardiorespiratory fitness in heart failure patients but have not been thoroughly evaluated in chronic HF with systolic dysfunction.
Do the 5-time sit-to-stand and 30-second sit-to-stand tests correlate with the 6-minute walk test in assessing cardiorespiratory fitness in patients with chronic systolic heart failure?
Do the 5-time sit-to-stand and 30-second sit-to-stand tests correlate with the 6-minute walk test in assessing cardiorespiratory fitness in patients with chronic systolic heart failure?
The 30-second sit-to-stand test strongly correlates with the 6-minute walk test, suggesting it is a viable, space-efficient alternative for assessing cardiorespiratory fitness in patients with chronic systolic heart failure.
Supports 30sSTS as potential surrogate for 6MWT in systolic HF; hypothesis-generating and requires prospective validation before clinical adoption.
OBJECTIVE: To prove 5-time sit-to-stand (5-STS) and 30-second sit-to-stand (30sSTS) tests in assessing cardiorespiratory fitness in chronic heart failure (HF) patients with systolic dysfunction. Alternative tests, such as 5-STS and 30sSTS, may be used to assess cardiorespiratory fitness in patients with HF but have not been thoroughly evaluated. Thus, this study aimed to prove 5-STS and 30sSTS tests in assessing cardiorespiratory fitness in chronic HF patients with systolic dysfunction. METHODS: A cross-sectional study was done, evaluating chronic HF patients with systolic dysfunction that have received optimal guideline directed medical treatment for at least 3 months. All patients underwent the same intervention on the same day, starting with an initial 5-STS test, followed by a 30sSTS, and a 6-minute walk test (6MWT). RESULTS: A total of 34 patients were enrolled in this study. The median left ventricular ejection fraction was 44% (interquartile range=34%-48%). Mean values of 5-STS, 30sSTS, and 6MWT were 13.90±4.72, 13.29±3.38, and 463.65±87.04, respectively. 5-STS showed moderate correlation with 6MWT (r=-0.436, p=0.01). However, the 30sSTS revealed strong correlation with 6MWT (r=0.629, p<0.001). CONCLUSION: The 30sSTS test had strong correlation with 6MWT. It could be used to illustrate cardiorespiratory fitness in chronic HF patients with systolic dysfunction.
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Triangto et al. (2025) studied this question.
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