Force Control in Chronic Obstructive Pulmonary Disease

This observational study is based on the analyses of data (force signals) recorded during the first visit of NEUROTIGUE study (NCT04028973). Force signals were recorded during brief submaximal isometric contractions of the knee extensors performed by both COPD patients and healthy individuals. Each participant performed contractions at different intensity of his/her maximal muscle strength : 10, 20, 30, 40, 50 and 60%. Two contractions of approximately 6s duration were performed at each intensity by all participants. For a given intensity (e.g., 10%), both contractions were performed in a row but different intensities were accomplished in a random order. Force control will be assess using a conjunction of parameters to provide a comprehensive understanding of force variability (e.g., coefficient of variation, non-linear approaches).