The equipment is used for elbow bend我明ing and stretching, and strengthening t白計he muscle chain of the active 小林and antagonistic mus開但cles. On the premise of ensuring t金電he safety of patients, carry out eff兒鄉icient training; The two-way h學短ydraulic resistance ca商又n start from the lowest機厭 limit set, with 厭放small inertia, 民妹so as to avoid damage to p妹有atients during us村土e; Comfortable use experience. Speci行熱al design is adopt務輛ed for the stressed parts of joints, wh拿少ich conforms to the principle of hum請煙an morphology.