Athletic equipment for rehabilitation comprises a support fixture and a first arm pivotally mounted to the support fixture. The first arm is further mounted to the fixture for rotation in a direction different from the direction of pivotable movement. A second arm is rotatably coupled to the first arm. At least one holder, graspable by a user to pivot and/or rotate at least one of the first and second arms in exercising movement, is mounted on the second arm. A spring and balancing cam mechanism supported on the fixture is operable to transmit substantially constant spring force bias to the holder during pivotable movement of the first arm.