Abstract

Rupture of the anterior cruciate ligament (ACL) is a prevalent and debilitating injury arising from aberrant biomechanics during landing or deceleration tasks. While the mechanism of injury is known, rates of ACL injury and reconstruction remain high. A potential explanatory factor for the high rate of injury is kinesiophobia, which has been associated with poor outcomes and deleterious biomechanics during dual-limb tasks in ACL reconstructed (ACLr) females. Unfortunately, findings have been limited to dual-limb tasks and correlational analyses. Therefore, the purpose of this project was to examine the relationship between kinesiophobia and movement during dual- and single-limb tasks, and to investigate the direct acute effects of pain-related fear on movement in a population of ACLr and healthy females. Fifteen recreationally active females with a history of ACLr and 17 recreationally active females with no history of ACLr took part. Participants completed the Tampa Scale of Kinesiophobia (TSK-11) survey and subsequently performed 5 trials of a drop jump (DJ), single-limb landing (SLL), and single-limb hop (SLH) (Baseline), underwent a pain stimulus (PS) familiarization to induce pain-related fear, and performed a subsequent round of DJ while under threat of PS (PS-threat). Lower extremity and trunk kinematics and ground reaction force (GRF) data were analyzed. In the ACLr group, there was a strong negative correlation between kinesiophobia and knee flexion (r = -.592, p = .20) and between kinesiophobia and trunk flexion (r = -.724, p = .002) during the DJ. For the SLH, there was a strong positive correlation between kinesiophobia and hip flexion (r = .560, p = .03). For both groups, the PS intervention significantly increased pain-related fear (ACLr p

LLU Discipline

Rehabilitation Sciences

Department

Rehabilitation Sciences

School

School of Allied Health Professions

First Advisor

Everett Lohman III

Second Advisor

Lida Gharibvand

Third Advisor

Christopher Patterson

Degree Name

Doctor of Philosophy (PhD)

Degree Level

Ph.D.

Year Degree Awarded

2022

Date (Title Page)

6-2022

Language

English

Library of Congress/MESH Subject Headings

Anterior Cruciate Ligament Injuries; Biomechanical Phenomena; Kinesiophobia; Pain; Fear

Type

Dissertation

Page Count

x, 109 p.

Digital Format

PDF

Digital Publisher

Loma Linda University Libraries

Usage Rights

This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.

Collection

Loma Linda University Electronic Theses and Dissertations

Collection Website

http://scholarsrepository.llu.edu/etd/

Repository

Loma Linda University. Del E. Webb Memorial Library. University Archives

Download

Share

COinS