Improving Tissue Repair After Injury in the Muscle-tendon Interface Muscle Tissue Injury

This 2-week study investigates the role of muscle connective tissue in healing after injury by testing whether growth hormone (GH) injections, with or without electrical muscle stimulation of the hamstrings, improve tissue repair in patients preparing for knee reconstruction surgery. Forty healthy men and women (BMI 18–35) who are scheduled for reconstructive knee surgery are randomly assigned to receive GH or a placebo, with or without neuromuscular electrical stimulation of the hamstring muscles. People with a history of growth hormone or anabolic steroid use, recent corticosteroid use, medications affecting muscle or tendon turnover, or chronic diseases are excluded. Muscle biopsies and other measurements are collected around the time of surgery to analyze changes in connective tissue protein synthesis. This summary was prepared as patient-facing educational content using AI assistance.