Browsing Kinesiology and Health Sciences by Title
Now showing items 407-426 of 465
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The Role of Binocular Vision during the Performance of Complex Manipulation Skills
(University of Waterloo, 2015-09-14)The overall goal for this thesis was to examine the significance of binocular vision during the performance of complex manipulation tasks in visually-normal children and adults. The goal of study 1 was to examine the ... -
THE ROLE OF CYTOSOLIC CALCIUM IN POTENTIATION OF MOUSE LUMBRICAL MUSCLE
(University of Waterloo, 2014-04-09)Following contractile activity, fast twitch skeletal muscle exhibits increases in submaximal force known as potentiation. Although there is no consensus on the purpose of potentiation, it is known to enhance power during ... -
The role of glutathione depletion in skeletal muscle apoptotic signalling in young and old rats
(University of Waterloo, 2010-09-27)There is substantial evidence that oxidative stress causes negative outcomes in many cell and tissue types. This is especially true of skeletal muscle, as it is continually subjected to various sources of reactive oxygen ... -
The Role of Heat Shock Protein 70 in Protecting Muscle Mechanical Function & SERCA Function in Human Skeletal Muscle
(University of Waterloo, 2009-04-23)Two studies were conducted to determine if Hsp70 is able to protect human skeletal muscle from muscle mechanical damage and alterations in SERCA activity associated with prolonged concentric exercise. In the first study, ... -
The role of phospholamban (PLN) in potential protection of sarc(endo)plasmic reticulum Ca2+-ATPase (SERCA) against oxidative stress
(University of Waterloo, 2015-01-23)Sarco(endo)plasmic reticulum Ca2+ ATPase (SERCA) sequesters Ca2+ from the cytosol to: i) aid in muscular relaxation and ii) refill SR Ca2+ stores for release upon subsequent stimulus for contraction. SERCA function is ... -
The Role of Phospholamban and Sarcolipin in Skeletal Muscle Disease
(University of Waterloo, 2016-01-19)Sarcolipin (SLN) and phospholamban (PLN) are two small proteins that physically interact with and inhibit the sarco(endo)plasmic reticulum Ca2+-ATPase (SERCA) pump. Results from our laboratory and others have shown that, ... -
The Role of Sarcolipin in Calcium Handling and Obesity
(University of Waterloo, 2010-05-19)Sarcolipin (SLN), a small molecular weight, hydrophobic protein found in skeletal muscle, is a known regulator of sarco(endo)plasmic reticulum Ca2+ ATPase (SERCA) pumps. Earlier in vitro reconstitution experiments have ... -
The Role of Sarcolipin in Muscle Adaptation with Aging
(University of Waterloo, 2024-04-08)The sarco(endo)plasmic reticulum Ca2+-ATPase (SERCA) pump facilitates the transport of Ca2+ against a concentration gradient from the cytosol to the lumen of the SR, eliciting relaxation and maintaining Ca2+ homeostasis. ... -
ROLE OF SECOND MESSENGER SIGNALING PATHWAYS IN THE REGULATION OF SARCOPLASMIC RETICULUM CALCIUM-HANDLING PROPERTIES IN THE LEFT VENTRICLE AND SKELETAL MUSCLES OF DIFFERENT FIBRE TYPE COMPOSITION
(University of Waterloo, 2007-02-09)The overall objective of this thesis was to examine mechanisms involved in the acute regulation of sarcoplasmic reticulum (SR) Ca2+-handling properties by second messenger signaling pathways in skeletal and cardiac muscle. ... -
The role of somatosensory input in target localization during binocular and monocular viewing while performing a high precision reaching and placement task
(Elsevier, 2019-06)Binocular vision provides the most accurate and precise depth information; however, many people have impairments in binocular visual function. It is possible that other sensory inputs could be used to obtain reliable depth ... -
The Role of Stereopsis in the Control of Grasp Forces during Prehension
(University of Waterloo, 2020-05-28)Background: Binocular viewing is associated with a superior prehensile performance, which is particularly evident in the latter part of the reach as the hand approaches and makes contact with the target object. However, ... -
Role of visual information during stair locomotion
(University of Waterloo, 2011-03-30)Vision provides relevant information for safe locomotion in a variety of environments. During stair locomotion visual information may be important to detect step boundaries, transitions between ground level and stairs, ... -
Self-efficacy theory and the self-regulation of exercise behaviour
(University of Waterloo, 2005)Why are people unable to adhere to an exercise program? Adhering to an exercise program is complex, and exercisers struggle with a variety of challenges that require self-regulation (e. g. , making time, learning skills, ... -
Sensory Conflict: Effects on the Perceived Onset of Motion and Cybersickness in Virtual Reality
(University of Waterloo, 2023-01-03)The perception of self-motion involves the integration of multisensory information, however there are scenarios in which the sensory feedback we receive from these different sources can conflict with one another. For ... -
Sensory information to motor cortices: Effects of motor execution in the upper-limb contralateral to sensory input.
(University of Waterloo, 2009-09-29)Performance of efficient and precise motor output requires proper planning of movement parameters as well as integration of sensory feedback. Peripheral sensory information is projected not only to parietal somatosensory ... -
Sex-based differences in IMCL storage and utilization during an acute bout of high intensity interval exercise (HIIE)
(University of Waterloo, 2023-09-21)INTRODUCTION: The contribution of lipids, particularly intramyocellular lipids (IMCL), to energy production during high intensity interval exercise (HIIE) is not well characterized. Sex influences lipid utilization during ... -
Social Factors and Nutrition Risk in Community-Living Seniors During the COVID-19 Pandemic
(University of Waterloo, 2023-01-04)Pandemic countermeasures (e.g., lockdown, restrictions) enacted to minimize the spread of COVID-19 may put older adults at nutrition risk. This thesis uses an online/telephone survey to investigate factors associated with ... -
Soft Tissue Thickness and Composition surrounding the Proximal Femur
(University of Waterloo, 2023-08-17)Introduction: In Canada, approximately 30 000 hip fractures occur each year. Hip fractures are associated with significant morbidity, mortality, and quality of life changes. Trochanteric soft tissues have been shown to ... -
Spine Biomechanics of Prolonged Sitting: Exploring the Effect Chair Features, Walking Breaks and Spine Manipulation have on Posture and Perceived Pain in Men and Women.
(University of Waterloo, 2015-03-03)Purpose: Prolonged sitting while working in an office has become a standard function in our society. While seated postures do conserve energy and permit a worker to focus on a task, the posture also involves a significant ... -
Stabilization Strategies of the Lumbar Spine in Vivo
(University of Waterloo, 2002)In developing a method of quantifying stability in the lumbar spine Cholewicki and McGill (1996) have also broached the notion of sufficient stability, where too much stiffness (and stability) would hinder motion. Thus ...