Treadmills, nyob rau hauv lub cos cos, qoj ib ce tsheb kauj vab, pedal tus kws qhia ntawv siv feem ntau cov cuab yeej siv hluav taws xob siv nyob rau hauv cov cuab yeej siv hluav taws xob hauv chaw kuaj mob thiab tsev kho mob. Lwm hom khoom siv dag zog suav nrog lub cev sab sauv ergometer (ubbe).