Power – work divided by the amount of time to perform that work. Calculates the amount of work
performed during a unit of time. Indicates the rate at which a muscle contracts and sustains a force
throughout the range of movement.
Average Power – amount of total work divided by time to complete that total work. Used to provide a
true measure of work rate intensity. Indicates a muscles ability to perform work over a period of time.
Important for the rehabilitation of specific activities and is usually compared bilaterally or in pre and post
testing.
Range of Motion – greatest range the joint achieved during a test.
Agonist /Antagonist Ratio – reciprocal muscle group relationship. Excessive imbalances may
predispose a joint to injury.
Deficits – deficit percentages of 1 to 10% indicate that there is no significant difference between the
muscle group. Percentages of 11 to 25% indicate that rehabilitation is recommended to improve
muscular imbalance. Negative numbers indicate that the involved extremity performed better than the
uninvolved extremity.
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