Association of Dynamic Knee Valgus and Bone Stress Injury in US Military Academy Cadets.

Autor:	Little JV; Acute Rehabilitation Services, Mission Hospital, Asheville, NC,USA., Eckard TG; Department of Physical Therapy, Western Carolina University, Cullowhee, NC,USA., DiStefano LJ; University of Connecticut, Storrs, CT,USA., Cameron KL; John A. Feagin Jr. Orthopaedic Sports Medicine Fellowship, Keller Army Hospital, West Point, NY,USA., Marshall SW; Department of Epidemiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC,USA., Padua DA; Department of Exercise and Sport Science, The University of North Carolina at Chapel Hill, Chapel Hill, NC,USA.
Jazyk:	angličtina
Zdroj:	Journal of sport rehabilitation [J Sport Rehabil] 2023 Jun 07; Vol. 32 (7), pp. 797-801. Date of Electronic Publication: 2023 Jun 07 (Print Publication: 2023).
DOI:	10.1123/jsr.2022-0355
Abstrakt:	Context: Early identification of incoming military personnel at elevated odds for bone stress injury (BSI) is important for the health and readiness of the US military. Design: Prospective cohort study. Methods: Knee kinematic data of the incoming US Military Academy cadets were collected while performing a jump-landing task (The Landing Error Scoring System) using a markerless motion capture system and depth camera. Data on incidence of lower-extremity injury, including BSI, were collected throughout the study period. Results: A total of 1905 participants (452 females, 23.7%) were examined for knee valgus and BSI status. A total of 50 BSI occurred during the study period (incidence proportion = 2.6%). The unadjusted odds ratio for BSI at initial contact was 1.03 (95% confidence interval [CI], 0.94-1.14; P = .49). Adjusted for sex, the odds ratio for BSI at initial contact was 0.97 (95% CI, 0.87-1.06; P = .47). At the instant of maximum knee-flexion angle, the unadjusted odds ratio was 1.06 (95% CI, 1.02-1.10; P = .01), and the odds ratio was 1.02 (95% CI, 0.98-1.07; P = .29) after adjusting for sex. This suggests that there was not a significant enough association for an increase in the odds of BSI based on either degree of knee valgus. Conclusions: Our results did not demonstrate an association between knee valgus angle data during a jump-landing task and future increased odds of BSI in a military training population. Further analysis is warranted, but the results suggests the association between kinematics and BSI cannot be effectively screened by knee valgus angle data in isolation.
Databáze:	MEDLINE
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