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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: Reliability and validity of knee extensor strength measurements using a portable dynamometer anchoring system in a supine position

Fig. 1

The portable dynamometer anchoring system. (a) The portable dynamometer anchoring system for measuring supine isometric knee extensor strength. A: Movable frame that can adjust the placement of the hand-held dynamometer (HHD) according to the size of the lower leg. B: Movable frame that can adjust the HHD placement according to leg length. C: Belt to fix the anchoring system to the bed. (b) Position of the examiner to prevent pelvic rotation of the participant

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