Prediction of Kinematic and Kinetic Performance in a Drop Vertical Jump with Individual Anthropometric Factors in Adolescent Female Athletes: Implications for Cadaveric Investigations
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Anterior cruciate ligament injuries are common, expensive to repair, and often debilitate athletic careers. Robotic manipulators have evaluated knee ligament biomechanics in cadaveric specimens, but face limitations such as accounting for variation in bony geometry between specimens that may influence dynamic motion pathways. This study examined individual anthropometric measures for significant linear relationships with in vivo kinematic and kinetic performance and determined their implications for robotic studies. Anthropometrics and 3D motion during a 31 cm drop vertical jump task were collected in high school female basketball players. Anthropometric measures demonstrated differential statistical significance in linear regression models relative to kinematic variables (p-range <0.01–0.95). However, none of the anthropometric relationships accounted for clinical variance or provided substantive univariate accuracy needed for clinical prediction algorithms (r 2 < 0.20). Mass and BMI demonstrated models that were significant (p < 0.05) and predictive (r 2 > 0.20) relative to peak flexion moment, peak adduction moment, flexion moment range, abduction moment range, and internal rotation moment range. The current findings indicate that anthropometric measures are less associated with kinematics than with kinetics. Relative to the robotic manipulation of cadaveric limbs, the results do not support the need to normalize kinematic rotations relative to specimen dimensions.
KeywordsAnterior cruciate ligament Robotic manipulator Knee kinematics Anthropometric variability Cadaveric simulation
This work was supported by NIH Grants R01-AR049735, R01-AR055563, and R01-AR056259. The authors thank the entire Sports Medicine Biodynamics groups at Cincinnati Children’s Hospital and The Ohio State University for their support.
Conflict of interest
There were no conflicts of interest to report in the preparation of this manuscript.
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