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Trends in movement quality in US Military Academy cadets 2005-17: A JUMP-ACL study
Timothy G Eckard1, Stephen W Marshall2, Kristen L Kucera3
1Department of Physical Therapy, Western Carolina University, Cullowhee, NC, USA.
Objectives:
This study sought to determine if there were significant trends in lower extremity movement quality, as assessed by the Landing Error Scoring System (LESS) scores and plane-specific LESS subscales, across in 12 recent cohorts of incoming USMA cadets.
Design:
prospective cohort study.
Setting:
United States Military Academy.
Participants:
7,591.
Main Outcome Measures:
Landing Error Scoring System (LESS) scores, adjusted for sex and ACL injury history.
Results:
Statistically significant inverse trends were found between total LESS score and year (p < 0.01) and sagittal plane subscale and year (p < 0.01). A statistically significant direct trend was found for the frontal/transverse plane subscale and year (p < 0.01). However, each of these trends had a small associated effect size, and none were considered clinically meaningful.
Conclusions:
There were no meaningful changes in lower extremity movement quality in incoming US Military Academy cadets between 2005 and 2017.
