Claire extends her left calf muscle then relaxes it, concentrating on the tension leaving the muscle as she does so. claire then tenses and relaxes her left quadriceps, again noting the flow of tension from the area. claire is engaged in:

Progressive Muscle Relaxation Technique - The term was coined by Edmund Jacobson. In this relaxation technique, Jacobson suggests tensing and relaxing of specific muscles of the body one after another until all the muscle groups in the body are completely relaxed.