CHANGES IN HEART RATE VARIABILITY FOLLOWING DEEP BREATHING, TILTING AND VALSALVA MANEUVER TECHNIQUES AMONG SUBJECTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE
Mohammed J.1,2, Derom E.3, Van Oosterwijck J.1,4, Salhi B.5, Da Silva H.1, Calders P.11Ghent Univers