Impact of gender on benefits of exercise training on sympathetic nerve activity and muscle blood flow in heart failure

LM Antunes‐Correa, RC Melo, TS Nobre… - European journal of …, 2010 - Wiley Online Library
LM Antunes‐Correa, RC Melo, TS Nobre, LM Ueno, FGM Franco, AMW Braga…
European journal of heart failure, 2010Wiley Online Library
Aims We compared the effects of exercise training on neurovascular control and functional
capacity in men and women with chronic heart failure (HF). Methods and results Forty
consecutive HF outpatients from the Heart Institute, University of Sao Paulo, Brazil were
divided into the following four groups matched by age: men exercise‐trained (n= 12), men
untrained (n= 10), women exercise‐trained (n= 9), women untrained (n= 9). Maximal
exercise capacity was determined from a maximal progressive exercise test on a cycle …
Aims
We compared the effects of exercise training on neurovascular control and functional capacity in men and women with chronic heart failure (HF).
Methods and results
Forty consecutive HF outpatients from the Heart Institute, University of Sao Paulo, Brazil were divided into the following four groups matched by age: men exercise‐trained (n = 12), men untrained (n = 10), women exercise‐trained (n = 9), women untrained (n = 9). Maximal exercise capacity was determined from a maximal progressive exercise test on a cycle ergometer. Forearm blood flow was measured by venous occlusion plethysmography. Muscle sympathetic nerve activity (MSNA) was recorded directly using the technique of microneurography. There were no differences between groups in any baseline parameters. Exercise training produced a similar reduction in resting MSNA (P = 0.000002) and forearm vascular resistance (P = 0.0003), in men and women with HF. Peak VO2 was similarly increased in men and women with HF (P = 0.0003) and VE/VCO2 slope was significantly decreased in men and women with HF (P = 0.0007). There were no significant changes in left‐ventricular ejection fraction in men and women with HF.
Conclusion
The benefits of exercise training on neurovascular control and functional capacity in patients with HF are independent of gender.
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