Author/Authors :
Bergamin Marco نويسنده Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Italy , Gobbo Stefano نويسنده Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Italy , Bullo Valentina نويسنده Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Italy , Duregon Federica نويسنده Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Italy , Vendramin Barbara نويسنده Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Italy , Alberton Cristine Lima نويسنده Physical Education School, Federal University of Pelotas, Brazil , Cugusi Lucia نويسنده Department of Medical Sciences, University of Cagliari, Italy , Zanotto Tobia نويسنده Department of Clinical Exercise Physiology and Rehabilitation, Queen Margaret University of Edinburgh, United Kingdom , Bocalini Danilo Sales نويسنده Cardio-Physiology and Pathophysiology Laboratory, Federal University of Sao Paulo, Brazil , Blasio Andrea Di نويسنده Department of Medicine and Sciences of Aging, G. d’Annunzio University of Chieti-Pescara, Italy , Bergamo Manuele نويسنده Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Italy , Zaccaria Marco نويسنده Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Italy , Ermolao Andrea نويسنده Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Italy
Abstract :
[Background]This study aimed to compare exercise intensity through measuring oxygen consumption (VO2), heart rate (HR), and rating of perceived effort (RPE) during an underwater walking at a standardized gait velocity (step × min-1) when wearing swimsuit (SS) or aquatic pants (AP) that increased the drag force[Methods]20 young healthy participants (11 M, 9 F) were recruited; each participant was asked to perform two trials in a random order, one with SS, and the other with AP. Each trial consisted in a 20-minute walk on an underwater non-motorized treadmill at 60, 70, 80, and 90 step × min-1.[Results]The total number of steps during the two trials and the walked distance was the same when wearing SS or AP at all rhythms. VO2, HR, and RPE were significantly higher with the use of AP at all gait velocities (P < 0.001).[Conclusions]Owing to the larger drag force, AP can be considered as an effective device to increase exercise intensity since the cardiorespiratory response was greater when wearing AP rather than SS.
