A research study conducted by the Center for Health Studies in Seattle, Washington revealed that massage therapy could have prolonged benefits for sufferers of chronic back pain. In the study, 262 adults, ages 20 to 70, were given Swedish and deep-tissue massages, trigger-point therapy (applying pressure to tender muscle tissue), neuromuscular therapy and movement education. After 10 weeks, participants noted that the benefits of massage therapy continued well beyond the last treatment and persisted up to one year later