Date of Completion


Embargo Period



jump-landing, injury prevention, adolescent, female

Major Advisor

Lindsay J DiStefano, PhD, ATC

Associate Advisor

Stephanie M. Mazerolle, PhD, ATC

Associate Advisor

Craig R. Denegar, PhD, ATC, PT

Associate Advisor

Michael F. Joseph, PhD, PT

Associate Advisor

Thomas H. Trojian, MD

Field of Study



Doctor of Philosophy

Open Access

Open Access


Injury prevention programs (IPP) decrease injury rates and improve movement-based risk factors, but many coaches do not adopt them. The time required for these programs is frequently reported as a barrier to program adoption. It is not known if a shorter duration IPP can improve movement technique in a manner thought to reduce the risk of injury. To examine if a shorter duration IPP is able to elicit improvements in movement technique similar to the F11+ program in female, high school athletes. A secondary aim was to assess high-risk (LESS ≥ 5) participants’ response to the intervention. A randomized controlled clinical trial was used. Seventy-six healthy, female athletes (Age=15±1 y, Mass: 59.9±10.4 kg, Height: 166.4±6.3 cm) (Field Hockey=21, Soccer=31, Volleyball=24) were stratified by team and randomized into one of three warm-up interventions: Focused (N=25), F11+ (N= 24) or Control (N=27). Participants completed a test session before and after their 2014 Fall season (8-10 weeks). At each session they performed three trials of a jump-landing task and each was scored using the Landing Error Scoring System (LESS). Participants improved their overall LESS scores (P=.002) regardless of group. High-risk participants reduced their LESS scores by nearly 2 errors (PRE: 7.00 ± 1.24, POST 5.06 ±1.74, P