Final answer:
The critical event for the concentric phase of a one-arm shoulder press that is not involved is Hip flexion.
Step-by-step explanation:
The critical event for the concentric phase of a one-arm shoulder press that is not involved is Hip flexion. The concentric phase of a one-arm shoulder press involves the contraction of the shoulder muscles to lift the arm upwards. This movement requires shoulder abduction (movement of the arm away from the body), scapular upward rotation (movement of the scapula towards the spine), and elbow extension (straightening of the elbow joint).
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