Clinical Research Directory

State-Based Rehabilitation for Youth Athletes With Osgood-Schlatter or Sever-Related Apophyseal Pain

The goal of this clinical trial is to learn if a state-based rehabilitation program is feasible and helpful for children and adolescents with current or past lower-extremity apophyseal pain, including Osgood-Schlatter-related knee pain and Sever-related heel pain. It will also learn about how well participants follow the program and whether the program can be delivered as planned. The main questions it aims to answer are: 1. Can this rehabilitation program be delivered with good attendance, good home-exercise adherence, and complete follow-up data? 2. Do pain, function, and sports participation improve during the rehabilitation period? All participants will receive the rehabilitation pathway. The program is adjusted to each participant's clinical presentation, pain irritability, activity limits, and main physical deficits. Participants will: * Attend baseline and follow-up physiotherapy assessments * Receive a rehabilitation plan that includes education, pain and load monitoring, and individualized exercises * Complete home exercises and keep a short symptom and activity log * Attend in-person physiotherapy sessions during the rehabilitation period * Answer questionnaires about pain, function, and sports participation during follow-up

Low-Level Laser Therapy for Osgood-Schlatter or Sever Pain in Youth Athletes

The goal of this clinical trial is to learn if low-level laser therapy (also called photobiomodulation) works to treat knee or heel pain in physically active children and adolescents with Osgood-Schlatter disease or Sever disease. It will also learn about the safety of this treatment. The main questions it aims to answer are: 1. Does low-level laser therapy lower pain more than a sham (placebo) laser treatment? 2. Does low-level laser therapy improve daily and sport-related function more than a sham laser treatment? 3. What medical problems, if any, do participants have during the study? Researchers will compare active low-level laser therapy to a sham (placebo) laser treatment. The sham treatment looks and feels the same but does not deliver therapeutic light. This comparison will show whether the laser therapy works better than placebo. Participants will: * Complete screening and a baseline visit * Be randomly assigned to active laser therapy or sham laser therapy * Receive a series of treatment sessions over \[2 weeks\] * Answer short questionnaires about pain and function at baseline and follow-up visits * Have ultrasound imaging and/or provide blood or urine samples for research measurements Both participants and the study team who assess outcomes will not know which treatment group each participant is in until the study ends.