Iine underwater treadmill ( water treadmill ) kurapa kwemuviri, kureba kwekuita maekisesaizi nguva inosanganiswa nekuwedzera kwekudzivirira kwemvura. Izvi zvinoita kuti mwoyo utsungirire, izvo zvinoita kuti murwere arambe akagwinya. Inogona kushandiswa muzvipatara, makirabhu ehutano, mahotera, mudzimba, uye nemajeti akazvimirira.