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Non‐invasive ventilation during cycle exercise training in patients with chronic respiratory failure on long‐term ventilatory support: A randomized controlled trial

The role of non‐invasive ventilation (NIV) during exercise training (ET) in patients with chronic respiratory failure (CRF) is still unclear. The aim of this study was to test whether NIV during ET had an additional effect in increasing the 6‐min walking distance (6MWD) and cycle endurance time compared with ET alone.