Sound waves battle back pain: which therapy works best?

This study tested two common physical therapy methods—therapeutic ultrasound and phonophoresis—to see which is better at reducing pain and improving movement in people with long-term low back pain. Sixty young adults with chronic pain were randomly assigned to receive one of the treatments or a placebo, along with standard exercises and other therapies. Researchers measured changes in pain levels, flexibility, and daily function to determine which approach provided more relief.