Development of a Certified Testing Procedure for Hip and Groin Injuries in Athletes

Inclusion Criteria: * Male or female competitive team sports. * Registered members of participating team sports. * Age 14 to 20 years. * Participation in regular team training and competition during the study period. * Medically cleared for full participation in training and match play at study entry. * Willing and able to complete preseason testing and the assigned intervention program. * Provided written informed consent. For participants younger than 18 years, parent or legal guardian consent will also be obtained. Exclusion Criteria: * Current hip or groin injury causing time loss or restricting full participation in training or competition at baseline. * Lower extremity or lumbar spine injury at baseline that limits safe participation in testing or intervention exercises. * Surgery involving the hip, groin, pelvis, lumbar spine, or lower extremity within the previous 6 months. * Any neurological, musculoskeletal, cardiovascular, or other medical condition that would contraindicate participation in the intervention or testing procedures. * Inability to complete baseline assessments. * Planned absence during a substantial part of the preseason intervention period or competitive season. * Noncompliance with study procedures or refusal to provide consent.