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/suÂ·piÂ·naÂ·tion/ (sooâ³pÄ­-naÂ´shun) [L. supinatio ] the act of assuming the supine position, or the state of being supine. Applied to the hand, the act of turning the palm forward (anteriorly) or upward, performed by lateral rotation of the forearm. Applied to the foot, it generally implies movements resulting in raising of the medial margin of the foot, hence of the longitudinal arch.
The shoulder is abducted to approximately 135Âº and the arm laterally rotated with thumbs pointed to the ceiling. The intent is to align the arm to the direction of the lower fibers of the trapezius. The arm is supported on the table and on the same plane as the scapula.