The effect of muscle energy technique on gross trunk range of motion.

Muscle Energy Technique (MET) is used commonly by osteopaths and other musculoskeletal therapists but despite its widespread use there is little evidence to support its effectiveness in the treatment of spinal dysfunction. This study examined whether a single application of thoracic MET could significantly increase the range of motion in asymptomatic volunteers with restricted active trunk rotation. Fifty-nine volunteers were randomly assigned to either treatment (MET) or control groups and blinded pre and post active trunk rotation measures were recorded using a reliable measuring device. Volunteers in the treatment group received a single application of thoracic MET to correct their rotation restriction. MET applied to the thoracic spine in the direction of restricted rotation significantly produced increased range of active trunk rotation (p