Ndi treadmill pansi pa madzi ( water treadmill ) masewero olimbitsa thupi, nthawi yayitali yolimbitsa thupi imaphatikizidwa ndi kukana kwakukulu kwa madzi.Izi zimapangitsa kuti mtima wa munthu ukhale wopirira, zomwe zimathandizira kuti wodwalayo akhale wolimba mtima. Atha kugwiritsidwa ntchito m'zipatala, m'magulu azachipatala, m'mahotela, m'nyumba, ndi m'ndege zapadera.