1: Sit in long sitting with feet separated, knees slightly bent and trunk upright/vertical.
2: Ensure you are sitting with your normal resting lumbar lordosis, using a foam roller under your knees if required.
3: Flex the test shoulder to 90 degrees and horizontally extend it 45 to assume the test position with the thumb pointing toward the ceiling.
4: Position the athlete and housing so that the sensor pad makes contact with the distal radius at the wrist when the arm is in the test position described.
1: Sit tall with normal lumbar curve, raising your shoulder so that the thumb side of your wrist is touching the middle sensor pad.
2: As you exhale through your mouth set your shoulder blades, opening your chest and stiffening your trunk ready to push.
3: Slowly squeeze your wrist into the sensor pad building to your maximal effort over 5s without moving your trunk or feet/legs.