Note: In (a previous) article I stated that the body’s reaction to trauma–or to the expectation of trauma–was a combination of predictable responses, withdrawal and collapse. Withdrawal can be separated into four components: contraction, retraction, immobilization, and often, rotation. (Hence, the mnemonic “CRIOR”.) We maintain the withdrawal posture as long as we believe re- injury is possible. There is a two fold value in understanding these responses. First it establishes a referent to evaluate the effectiveness of a particular treatment. Second, it gives the therapist a larger perspective: the whole body reaction can provide a strategy for the overall rehabilitation.