Identifier

145

Date

2019

Document Type

Honors Thesis

Degree Name

Bachelor of Science

Major

Health Studies

Concentration

Exercise, Sport & Movement Sci

Committee Member

Powell Douglas

Abstract

Background: Walking is part of our daily activities. Increasing body mass potentially increases biomechanical mal-adaptations including reduced step length (SL), and increases joint loading (JRF). Purpose: The purpose was to determine if acutely added mass (AM) or SL change knee JRFs during walking. Hypotheses included: AM will alter SL, reduced SLs will increase JRFs, and AM increase JRFss. Methods: Fourteen participants performed eight trials in four experimental conditions including two variations of SLs and AM. 3D kinematics and ground reaction forces were collected simultaneously using an 8-camera motion capture system (240 Hz, Qualysis, Inc.) and force platforms (1200 Hz, AMTI, Inc.). Visual 3D was used to calculate joint angles, moments, powers, and JRFs. Results: Reduced SL had greater joint flexion angles, peak extension power and JRFs than AM condition. Discussion: It was concluded that reduced Sls are associated with greater JRFs while AM in isolation does not alter joint biomechanics.

Comments

Undergraduate Honor's Thesis

Library Comment

Honors thesis originally submitted to the Local University of Memphis Honor’s Thesis Repository.

Notes

Data is provided by the student.

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