Key result
Cardiac rehab is linked to markedly higher post-test muscle oxyhemoglobin in male HF patients vs inactivity.
Why the study?
The study was conducted to evaluate peripheral muscle oxygenation and quality of life in male patients with heart failure during a submaximal physical capacity test.
Does a cardiovascular rehabilitation program improve peripheral muscle oxygenation and quality of life during a submaximal physical capacity test in male patients with heart failure compared to a sedentary lifestyle?
Cross-Sectional (n=27)
Yes
Does a cardiovascular rehabilitation program improve peripheral muscle oxygenation and quality of life during a submaximal physical capacity test in male patients with heart failure compared to a sedentary lifestyle?
Absolute Event Rate: 5.38% vs 0.42%
p-value: p=0.03
Cardiovascular rehabilitation in male heart failure patients is associated with better submaximal exercise capacity and improved peripheral muscle oxygenation dynamics compared to a sedentary lifestyle.
Hypothesis-generating for rehab effects on oxygenation in male HF; should not yet change practice.
Objective: To verify peripheral muscle oxygenation and quality of life (QoL) in male patients with heart failure (HF) during a submaximal physical capacity test. Methods: Cross-sectional study, in individuals with HF, functional class II or III, left ventricular ejection fraction <45%, divided into sedentary group (SG) and cardiovascular rehabilitation group (CRG). QoL was assessed by the Minnesota Living with Heart Failure Questionnaire, muscle oxygenation by near-infrared spectroscopy before, during and after the six-minute walk test. Inferential statistical tests were used with a significance level of 5%, according to the normality test. The correlation analysis was performed through the Spearman correlation test. Results: There were inversely proportional results between physical aspects of QoL and oxyhemoglobin in the SG group. The distance covered was greater for CRG. We noted a significant increase in oxyhemoglobin post-test for CRG. Conclusions: Oxygen measurements correlate with physical aspects related to QoL in individuals with heart failure and the dynamics of peripheral muscle oxygenation in the most appropriate kinetic subjects.
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Gonzáles et al. (2024) conducted a cross-sectional in Heart Failure (n=27). Cardiac rehabilitation program vs. Sedentary lifestyle (no regular physical exercise for at least 3 months) was evaluated on Post-test change in oxyhemoglobin (∆O2Hb) in µmol/l (p=0.03). Male heart failure patients participating in a cardiac rehabilitation program demonstrated significantly higher post-test peripheral muscle oxyhemoglobin levels compared to sedentary patients.
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