- SVC maneuver: IC will be measured with the patient in the sitting position, using a portable spirometer (NDD Medical Technologies®, Switzerland), before and 1 minute after the tests, by the SVC maneuver starting from a stable end-expiratory volume, in accordance with ATS/ERS standards (Miller et al.,2005). A minimum of three maneuvers (maximum of eight) will be performed and, in order to be considered reliable, two curves could not vary more than 5% or 150 ml. The higher value of two reproducible curves will be used for analysis (O'Donnell et al., 2001). This outcome will be collected by a third evaluator blinded for the SCC or non-SCC application.