作者: John Cordova , Alvin Marx
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摘要: Bi-directional resistance exercise apparatus designed to offer opposing muscle groups. The provides continuous and sequential during the extension flexion phases. includes a controller including graphic display. Resistance is provided by variable element such as magnetic brake. A chair or other body supporting devices support user depending on being performed. Force applied rotatable limb torso retaining member transferred shaft of brake applies determined software instructions issued controller. levels can be pre-programmed specifically selected user. force varies instantaneously phases based angular position input shaft. record activity stored displayed microprocessor