The objective of this study is therefore to compare different levels of ventilatory assistance during exercise to determine whether the level of inspiratory assistance during exercise significantly improves endurance in these patients and, in particular, whether high-intensity ventilatory assistance (inspiratory assistance 21 +/- 3 cmH20) provides a greater benefit in terms of endurance time compared to moderate intensity (inspiratory assistance 13 +/- 3 cmH20) or low intensity (inspiratory assistance \< 6 cmH20).
