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1. This problem is based on a patient standing on one limb. For the following set of scenarios, determine: i. The torque that the abductor

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1. This problem is based on a patient standing on one limb. For the following set of scenarios, determine: i. The torque that the abductor muscles must provide in order to maintain the body position. ii. The abductor muscle force that was required to produce this torque iii. The magnitude of the net hip joint reaction force. The abductor muscles are assumed to absorb the entire adducting torque produced by the body weight on the hip joint of the stance leg. The following table and figure contain the relevant parameters. 0.055 m Weight of the Patient (minus stance leg) 750 N 0.12 m Moment arm of the abductor muscle force 0.055 m Orientation of muscle relative to horizontal* 750 Moment arm of the weight of the body (minus stance leg) 0.12 m *The location of the angle is shown in B, however, you should use 750 for the angle, not the 70 shown in the figure. 750 N X Fm Fm Human areThe patient is standing on one leg (the Trendelenburg test. The center ing resented by arrows, and their moment arms are indeed theE the hip Scenarios (30 points each): a) Patient standing on one leg (Trendelenburg Test). b) Patient carries one suitcase (30 kg ~= 294 N) in the hand opposite the stance leg (moment arm = 0.30 m) (Figure A below). c) Patient carries a suitcase in each hand (moment arm in hand on side of standing leg = 0.15 m) (Figure B below)

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