Browsing Health (Faculty of) by Supervisor "Callaghan, Jack"
Now showing items 1-11 of 11
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The aging spine: The effect of cyclic loading, simulated degeneration and prolonged sitting on joint stiffness across age
(University of Waterloo, 2018-08-22)Background: Low back pain is estimated to have a lifetime prevalence as high as 84%, and both the severity and frequency of low back pain reporting have a dependency on age. The nucleus pulposus and annulus fibrosis of ... -
Assessing pre-existing movement and muscular recruitment differences in prolonged standing, transient low back pain developers compared to non-pain developers
(University of Waterloo, 2018-09-26)Epidemiological studies have reported occupational prolonged standing to be associated with low back pain (LBP). Studies that have conducted simulations of prolonged standing work in healthy individuals have demonstrated ... -
Axial twist of the lumbar spine: Mechanical responses to twisted postures and potential factors for workplace injury
(University of Waterloo, 2017-08-24)While a link between magnitudes of spinal axial twist motions and the various modes of associated injury, pain reporting, and lost time claims has been tentatively established, there is need for greater investigation and ... -
A Biomechanical-Biochemical Hypothesis for the Role of Collagen in Injury
(University of Waterloo, 2022-07-25)Low back pain affects 80% of the population at some point in their lives and is the most common musculoskeletal complaint for workplace injuries. Further, it presents as episodic, with sufferers typically experiencing ... -
Development of a full flexion 3D musculoskeletal model of the knee considering intersegmental contact and deep muscle activity during high knee flexion
(University of Waterloo, 2019-01-24)Habitual kneeling in high knee flexion postures is a risk factor for knee joint dysfunction yet critical parameters for modeling this range of motion remain unknown or untested in three dimensions. High flexion is defined ... -
Effects of shoe midsole cushioning on low back impact shock attenuation in recreational runners
(University of Waterloo, 2023-09-22)Running is one of the most widely practiced and accessible forms of physical activity. When the foot contacts the ground during running, impacts on the order of two to three times body weight are generated. The impact force ... -
The Efficacy of an Ergonomics Education Program on Sit-Stand Workstation Usage Behaviours: A Field Intervention Study
(University of Waterloo, 2016-09-06)Abstract Background: Much is known about the negative aspects of sitting and standing for long periods of time. In recent years there has been a shift in office furniture from non-height adjustable workstations to those ... -
An EMG-Driven Cervical Spine Model for the Investigation of Joint Kinetics: With Application to a Helicopter Pilot Population
(University of Waterloo, 2016-09-16)As the workforce has been shifting from manufacturing to office work, reports of neck pain have been on the rise. Unfortunately, the mechanism for the development of chronic neck pain still remains disputed. Most current ... -
Exploring Low to Moderate Velocity Motor Vehicle Rear Impacts as a Viable Injury Mechanism in the Lumbar Spine
(University of Waterloo, 2020-05-19)Epidemiological research suggests that up to 50% of individuals involved in low speed rear impact collisions develop acute onset low back pain. Given that little information is known about the low back injury mechanisms ... -
History-Dependent Changes to the Structure, Properties, and Function of the Cartilaginous Endplate
(University of Waterloo, 2023-04-12)The performance of manual lifting is associated with 33-51% of incidental low back injuries in work, leisure, and sport/exercise contexts. To effectively prevent low back injuries and evaluate the risk of occurrence, ... -
The Prediction of Nociceptive Neural Activity in Passive Tissues following Lumbar Spine Flexion
(University of Waterloo, 2021-11-26)Low back pain is a costly and debilitating disorder; however, most cases are categorized as being non-specific: low back pain without an identifiable origin or cause. Non-specific low back pain can be broadly considered ...