Figure 6From: Loading and unloading breathing during exercise: respiratory responses and compensatory mechanisms Inspiratory flow rate, tidal volume, EMG raw and integrated (Eps) activity of parasternal inspiratory muscles in response to abrupt substitution of sulfur hexafluoride-oxygen mixture (SF 6 -O 2 ) for room air (and vice versa ) during the steady-state exercise in subject N3.Back to article page