Diagnosis of a muscle strain in the lower extremities, including but not limited to hamstring, quadriceps, and gastrocnemius
Injury occurred within 10 days of the initial clinical evaluation
Injury occurred while engaging in athletic or sporting activities
Participants must be willing to undergo prescribed physical therapy
Participants have agreed to standard-of-care management for their injury, which may include ultrasound-guided aspiration with or without a platelet-poor plasma injection
You may not be if
Previous injection at the injury site.
Pregnant or breastfeeding women, or women who may become pregnant during the study duration
Injuries resulting from puncture or crush trauma
Injuries occurring more than 10 days prior to the injection date
Injuries not caused by athletic or sporting activity
Previous muscle injury in the same muscle group within 6 months
