горизонтальный велотренажёр(On an indoor recumbent exercise bike your back is supported which means less strain on your lower back than an upright exercise bike or spin bike.'More)
вертикальный велотренажёр(Upright exercise bikes allow for more variety of movement, such as riding while standing or in a racing position, so more muscle groups can be exercised as a biker changes position. Also, users with conditions such as spinal stenosis or osteoarthritis may find the forward-leaning position of the upright bike to be most comfortable.)