Article

Cardiorespiratory fitness is positively related to heart failure (HF)
prognosis, but lack of time and low energy are barriers for adherence to
exercise. We, therefore, compared the effect of low-volume time-based resistance
exercise training (TRE) with aerobic moderate-intensity cycling (AMC) on maximal
and submaximal exercise capacity, health-related quality of life, and vascular
function. METHODS: Twenty-eight HF patients (New York Heart Association class
I-II) performed AMC (n = 14) or TRE (n = 14). Maximal and submaximal exercise
capacity, health-related quality of life, and vascular function were evaluated
before and after a 6-wk training intervention with 3 training sessions per week.
The AMC group and the TRE group trained for 45 and 25 min per training session,
respectively. During the training sessions, the TRE and AMC groups trained at 60
+/- 4% and 59 +/- 2% (mean +/- standard deviation) of (Equation is included in
full-text article.)O2peak, respectively. RESULTS: The energy expenditure was
significantly greater in AMC than in TRE (P < .05). The (Equation is included in
full-text article.)O2peak and Wattpeak increased in AMC group (P < .001) and TRE
group (P = .001), with no differences between groups. Six-minute walk distance
also increased in both groups (AMC, P = .006 and TRE, P = .036), with no
difference between groups. Health-related quality of life improved equally in the
2 groups, whereas vascular function did not change in either group. CONCLUSION:
These results demonstrate that AMC and TRE equally improved exercise capacity and
health-related quality of life in lower New York Heart Association-stage HF
patients, despite less time required as well as lower energy expenditure during
TRE than during AMC. Therefore, TRE might represent a time-efficient exercise
modality for improving adherence to exercise in patients with class I-II HF.

Langue : ANGLAIS