Browsing Theses by Subject "Kinesiology"
Now showing items 101-120 of 172
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The Influence of Q-Angle and Gender on the Stair-Climbing Kinetics and Kinematics of the Knee
(University of Waterloo, 2007-09-27)Background: Knee joint motion and quadriceps activity play a crucial role in all lower limb tasks, especially those which are highly dynamic and weight-bearing. Due to anatomical differences between men and women such as ... -
The Influence of the Tensile Material Properties of Single Annulus Fibrosus Lamellae and the Interlamellar Matrix Strength on Disc Herniation and Progression
(University of Waterloo, 2009-07-30)Low back pain is highly prevalent in the developed world, with 80% of the population being affected at some point in their lives. Herniation, a common injury to the intervertebral disc, is characterized as the posterior ... -
Intra- and interhemispheric cortical adaptations due to modulations of premotor and primary motor cortices
(University of Waterloo, 2014-02-21)Movement training modulates the excitability in several cortical and subcortical areas. Compared to training with a single arm, movement training with both arms yields a greater increase in motor related cortical regions. ... -
Investigating the efficacy of the NASA fluid loading protocol for astronauts: The role of hormonal blood volume regulation in orthostasis after bed rest
(University of Waterloo, 2009-08-05)Despite years of research, the role that hypovolemia plays in orthostatic intolerance after head down bed rest (BR) and spaceflight remains unclear. Additionally, the efficacy of oral saline countermeasures, employed in ... -
Investigation of Hand Forces, Shoulder and Trunk Muscle Activation Patterns and EMG/force Ratios in Push and Pull Exertions
(University of Waterloo, 2010-09-30)When designing work tasks, one goal should be to enable postures that maximize the force capabilities of the workers while minimizing the overall muscular demands; however, little is known regarding specific shoulder tissue ... -
An investigation of the biomechanical factors influencing knee joint function following total knee replacement
(University of Waterloo, 2009-12-22)Knee replacement surgery is often performed in cases where the pain due to knee osteoarthritis can no longer be effectively controlled by conservative measures. The surgery—which replaces the articular surfaces of the ... -
An Investigation of the Role of Dynamic Axial Torque on the Disc Herniation Mechanism
(University of Waterloo, 2008-08-19)Background: Disc herniations are common and have been demonstrated as one potential source of low back pain. To date epidemiological studies have found associations between lifting, lifting and twisting and twisting with ... -
Ischemia reperfusion injury in isolated hearts from spontaneously hypertensive rats following chronic resveratrol treatment
(University of Waterloo, 2011-12-21)Hypertension is a risk factor for myocardial ischemia via the promotion of endothelial dysfunction and atherosclerosis (Ogita et al., 2004). Hypertension not only a predisposes the heart to ischemic events, but as shown ... -
Kinematics and 3-D Rotational Trunk Stiffness of the Unilateral Transfemoral Amputee across Five Activities of Daily Living
(University of Waterloo, 2015-09-30)Review: Research examining trunk biomechanics in the transfemoral amputee population has only recently begun to include analysis of trunk muscle activity. Based on the absence of knee extensor muscles in the prosthetic ... -
Lumbar Spine and Hip Kinematics and Muscle Activation Patterns during Coitus: A comparison of common coital positions
(University of Waterloo, 2013-01-31)Qualitative studies investigating the sexual activity of people with low back pain found a substantial reduction in the frequency of coitus and have shown that pain during coitus due to mechanical factors (i.e., movements ... -
Mechanical response of the porcine cervical spine to acute and repetitive anterior-posterior shear
(University of Waterloo, 2011-01-13)Approximately 80% of the population will experience low-back pain within their lifetime. Significant research efforts have focused on compressive loading as an injury mechanism that could lead to low-back pain and injury. ... -
Mechanisms of over-active endothelium-derived contracting factor signaling causing common carotid artery endothelial vasomotor dysfunction in hypertension and aging
(University of Waterloo, 2011-03-09)Background and Purpose: The endothelium is a single-cell layer positioned at the blood-vascular wall interface, where in response to blood-borne signals and hemodynamic forces, endothelial cells act as central regulators ... -
Micronutrients in Long-Term Care (LTC): Issues and opportunities for improvement
(University of Waterloo, 2014-10-22)BACKGROUND: Malnutrition is common among long-term care (LTC) residents, yet there is limited research on micronutrient (vitamin and mineral) malnutrition in the LTC setting. Micronutrient deficiencies may exacerbate ... -
A Model Based Approach to Apraxia in Parkinson's Disease
(University of Waterloo, 2010-05-19)This thesis provides new insight into how learned skilled movements are affected in a disease with basal ganglia damage, within what task demands these deficits can be detected, and how this detection can occur within the ... -
Modeling shoulder ligament contributions and their effects on muscle force predictions
(University of Waterloo, 2008-01-23)Mathematical musculoskeletal modeling and simulation provide a means for proactive injury prevention. To be effective, these models must physiologically replicate shoulder function. Although several muscle force prediction ... -
Modulation of inhibitory and excitatory neural circuits in the primary motor cortex following theta-burst rTMS to area 5
(University of Waterloo, 2010-12-17)Subcortical and cortical loci interact with the primary motor cortex (M1) and influence the neural circuitry mediating hand movement. Area 5 located within the superior parietal lobule has direct connectivity with M1, is ... -
Modulation of somatosensory cortex underlying error compensation in a tactile speeded-response task
(University of Waterloo, 2014-12-01)There is a lack of empirical evidence that the dorsolateral prefrontal cortex (DLPFC) is exerting control over post-error selective attention adjustments. This is an error compensation mechanism that is hypothesized by the ... -
Morphological and Apoptotic Alterations in Skeletal Muscle of Mice Deficient in Apoptosis Repressor with Caspase Recruitment Domain
(University of Waterloo, 2012-01-05)Altered apoptotic signaling in skeletal muscle has been observed in a number of disease states associated with skeletal muscle atrophy. Therefore, understanding the mechanisms that lead to increased skeletal muscle apoptosis ... -
Movement-induced motor cortical excitability changes of upper limb representations during voluntary contraction of the contralateral limb: A TMS investigation of interhemispheric interactions
(University of Waterloo, 2008-09-03)Humans possess the ability to generate an incredible degree of complex, highly skilled, and coordinated movements. Although much is known about the anatomical and physiological components of upper limb movement, the exact ... -
Muscle Quantity and Quality after Chronic Spinal Cord Injury: An investigation of calfmuscle cross-sectional area and density after long-term paralysis
(University of Waterloo, 2014-05-22)Background/Objectives: Individuals with a spinal cord injury (SCI) experience reductions in lower-extremity muscle mass and increased fatty-infiltration of skeletal muscle, predisposing them to an increased risk of specific ...