Date of Award

7-2018

Degree Type

Thesis

Degree Name

Master of Science

Department

Health and Human Performance

Program

Exercise Science

First Advisor/Chairperson

Sarah Clarke

Abstract

This study compared lower limb mechanics in unilateral transtibial amputees and able bodied controls during strenuous activities of daily living (ADL). Seven unilateral transtibial amputee and five matched-abled bodied control participants executed stair descent on a four-step rehabilitation staircase followed by one of two anticipated directional tasks. Force, kinematics and gait parameters were chosen to compare mechanics and stride characteristics between the residual limb, intact limb and able-bodied dominant limb between a straight walking condition and a non linear directional movement (wide-step cutting task). Results indicated that significant compensatory mechanisms occurred in the intact limb, perhaps from decreased load tolerance in the prosthetic limb. Compensatory mechanisms exhibited in the intact limb and the hip joint of the prosthetic limb exhibited mechanics that may indicate accelerated joint degeneration compared to able-bodied mechanics. Differences in the mechanics of limbs appear to be more pronounced during stair descent and a directional task compared level-ground walking. This may be a useful approach to identify and correct harmful mechanics.

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Biomechanics Commons

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