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Medicine and Health Sciences

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Utah State University

Theses/Dissertations

2021

Depth jump

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Improving The Specificity Of Vertical Stiffness Measurement In Depth Jump Landings, Miles Mercer May 2021

Improving The Specificity Of Vertical Stiffness Measurement In Depth Jump Landings, Miles Mercer

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Greater lower extremity stiffness has been shown to increase bilateral jump height through stretch-shortening cycle optimization. Currently, there are two established methods for estimating vertical stiffness (Kvert) of the human body, which is a variant of lower extremity stiffness. The validity of these methods for estimating Kvert in non-cyclical human movements has been questioned recently due to the complex physiological and neuromotor factors that support stiffness regulation in the muscle-tendon complex. The purpose of the present study was to improve the specificity of Kvert measurement using direct derivation of vertical ground reaction force (GRF) and center …