RT Conference Proceedings T1 Underwater walinkg on non-motirized treadmill as fitness tool for both healthy and frailty subjects A1 Benelli, P A1 Colasanti, F A1 Cuesta-Vargas, Antonio A1 Ditroilo, M A1 Lucertini, F A1 Gervasi, M. K1 Ejercicios físicos AB IntroductionUnderwater walking on non-motorized treadmill is a very popular aquatic fitness activity. Although water provides reduced gravity conditions and a nonweight bearing environment, water based training has been proven to be as effective as land-based training in improving health-related fitnesscomponents (Takeshima et al., 2002), and to be suitable for both healthy (Benelli et al., 2004) and frailty/pathologic (Frangolias et al., 1997) subjects.Little data is available about the metabolic demands of underwater walking exercises on motorized treadmills, whereas, to the best of our knowledge, nostudies have been carried out with non-motorized aquatic treadmills (ATM). Therefore, the aim of this study was twofold: i) evaluate oxygenconsumption (V’O2) and heart rate (HR) responses to an increasing submaximal ATM exercise performed at 2 different immersion heights; ii) to allocatethe results obtained into the latest fitness oriented exercise prescription guidelines. YR 2014 FD 2014-10-16 LK http://hdl.handle.net/10630/8249 UL http://hdl.handle.net/10630/8249 LA eng NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026