Master of Science (MS)
First Committee Member
Number of Pages
The purpose of the study was to investigate the effect of surface compliance on the cost and benefit of performing drop jumps (DJ). The cost was quantified using peak ground reaction force (GRF) (FPEAK), time to peak GRF (TFPEAK) and loading rate (LR). The benefit was quantified using lower extremity stiffness (K) and amortization phase (AMORT). Ten female subjects performed five DJ trials each on a force plate (C1), turf surface (C2) and aerobics mat (C3). GRF and kinematic data were recorded concurrently at 1000 Hz and 200 Hz, respectively. Dependent variables were analyzed using a repeated measures ANOVA. FPEAK was different between C3 and C2 (p < 0.05). TFPEAK was different (p < 0.05) and LR was different (p 0.05). It was concluded that surface stiffness plays a role in the costs and benefits of performing a DJ.
Benefit; Compliance; Cost; Drop; Effects; Jumps; Performing; Surface
University of Nevada, Las Vegas
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Reid, Michele Nicole, "The effect of surface compliance on the cost and benefit of performing drop-jumps" (2001). UNLV Retrospective Theses & Dissertations. 1261.