Functional volleyball block jump landing biomechanics and injury incidence of adolescent female athletes at two skill levels
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2008
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University of Hawaii at Manoa
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Purpose: To examine the biomechanics of volleyball block-jump landings of adolescent female athletes to determine injury risk factors associated with this age group. The independent variables were skill level, knee injury history, and lower extremity involvement. Dependent variables were lower extremity kinematics and kinetics. Methods: We used a causal-comparative retrospective research design to identify associated knee injury risk factors. Prior to the start of the competitive club season a retrospective injury questionnaire was administered to all participants to determine injury history status. Participants were 40 highly trained adolescent female club volleyball athletes who were divided into low (U13) and high (U17, VIS) skill level groups. Six high-speed three dimensional motion capture cameras and two force plates were used to collect kinematic and kinetic data. Three-way analyses of variance (ANOVA) linear model were used to analyze three independent variables and six dependent variables of right direction and left direction block jumps. Results: Findings indicated higher maximal vertical ground reaction forces (F=4. 71, P=O.03) on the right leg when subjects performed right direction block jump landings, regardless of ski11level or previous injury history. No differences were revealed in any of the other independent or dependent variables.
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Theses for the degree of Master of Science (University of Hawaii at Manoa). Kinesiology and Leisure Science; no. 4310
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