HighlightsMeasured and estimated VO2peak in CHF patients showed a moderate association.With the exception of equation 1, all equations underestimated VO2peak by up to 51%.The agreement evaluated using Bland–Altman was not consistent.
The estimated peak (Equation is included in full-text article.)O2 using the HAP was not concordant with the gold standard CPET measure. On the contrary, the HAP was able to differentiate NYHA functional class associated with the 6MWT distance; therefore, the HAP is a useful tool for assessing functional performance in patients with HF.
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