Browsing Kinesiology and Health Sciences by Issue Date
Now showing items 1-20 of 463
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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 ... -
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, ... -
An Identity Theory and Social Cognitive Theory Examination of the Role of Identity in Health Behaviour and Behavioural Regulation
(University of Waterloo, 2005)The self has been identified as the ?psychological apparatus that allows individuals to think consciously about themselves? (Leary & Price Tangney, 2003, p. 8). Further, the self has been identified as a worthwhile ... -
Determinants And Strategies For The Alternate Foot Placement
(University of Waterloo, 2005)Undesirable landing area (e. g. , a hole, a fragment of glass, a water puddle, etc) creates the necessity for an alternate foot placement planning and execution. Previous study has proposed that three determinants are ... -
The Dilemma of Proxy-Agency in Exercise: a Social-Cognitive Examination of the Balance between Reliance and Self-Regulatory Ability
(University of Waterloo, 2005)Social Cognitive Theory (SCT: Bandura, 1997) has been used successfully in understanding exercise adherence. To date, the majority of the exercise research has focused on situations of personal agency (i. e. , self ... -
Locating Instability in the Lumbar Spine: Characterizing the Eigenvector
(University of Waterloo, 2006)Overloading of the back can cause instability such that buttressing the instability is a primary objective of many of the leading edge therapeutic approaches. However, a challenge lies in determining the location of the ... -
The Effects of 60 Days of Head Down Bed Rest on Vascular Health
(University of Waterloo, 2006)This study was designed to test the hypothesis that 60 days continuous head down bed rest (HDBR), an Earth-based analogue of the effects of space flight, would elevate factors that increase vasoconstriction and would ... -
Protective Responses during a Sideways Fall: Effects of Secondary Tasks
(University of Waterloo, 2006)Falls and hip fractures are a major public health problem among the elderly. In addition to bone strength, sideways falls and direct hip impact are important determinants for hip fracture. However, few falls actually ... -
An examination of glove attributes and their respective contributions to force decrement and increased effort in power grip at maximal and submaximal levels
(University of Waterloo, 2006)Gloved work has been shown to increase the effort required to perform manual tasks. In power grip tasks, these differences have been observed as reductions in strength and increases in muscular effort. Decreases in ... -
Progressive Disc Herniation: An investigation of the mechanism using histochemical and microscopic techniques
(University of Waterloo, 2006)Abstract Background: The process that involves the migration of the nucleus pulposus from the innermost annular layers and culminates with the final extrusion of the nucleus has been limited to a few studies. This ... -
Central Nervous System Control of Dynamic Stability during Locomotion in Complex Environments
(University of Waterloo, 2006)A major function of the central nervous system (CNS) during locomotion is the ability to maintain dynamic stability during threats to balance. The CNS uses reactive, predictive, and anticipatory mechanisms in order to ... -
VISUAL INPUTS AND MOTOR OUTPUTS AS INDIVIDUALS WALK THROUGH DYNAMICALLY CHANGING ENVIRONMENTS
(University of Waterloo, 2006)Walking around in dynamically changing environments require the integration of three of our sensory systems: visual, vestibular, and kinesethic. Vision is the only modality of these three sensory systems that provides ... -
Visual Inputs and Motor Outputs as Indivduals Walk Through Dynamically Changing Environments
(University of Waterloo, 2006-12-01)Walking around in dynamically changing environments require the integration of three of our sensory systems: visual, vestibular, and kinesethic. Vision is the only modality of these three sensory systems that provides ... -
Negotiating Varying Ground Terrain during Locomotion: Insights into the Role of Vision and the Effects of Aging
(University of Waterloo, 2006-12-18)We continually encounter different ground terrain such as slippery, compliant, uneven, rocky, and irregular terrain when walking, yet we know very little about how individuals safely negotiate this type of complex environment. ... -
Control of Dynamic Stability during Gait Termination on a Slippery Surface
(University of Waterloo, 2007-01-17)The purpose of this thesis is to investigate the reaction to a purely unexpected slip during gait termination and subsequent experiences stopping on the slippery surface in participants who are young and healthy, older and ... -
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. ... -
Comparison of model-predicted and measured moment arms for the rotator cuff muscles
(Elsevier, 2007-07)Background The ability of mathematical models of the shoulder to accurately replicate physiological muscle moment arms is unknown. The purpose of this study was to compare model-predicted and experimentally measured moment ... -
IN VITRO AND IN VIVO BIOMECHANICAL INVESTIGATION OF THE CLINICAL PRACTICE OF DISC PROLAPSE PREVENTION AND REHABILITATION
(University of Waterloo, 2007-09-10)Underlying this thesis is the McKenzie school of thought, a physiotherapy approach that teaches clinicians to recommend particular exercises to their clients in an attempt to accelerate recovery/ prevent recurrence of disc ... -
Effects of Age and Experience on Memory-Guided Movements
(University of Waterloo, 2007-09-14)The purpose of the present research was threefold: 1) to investigate whether natural aging affects the movements to remembered targets when participants make reaching movements under closed-loop feedback conditions, 2) to ... -
Omega-3 Fatty Acid Blood Biomarkers Before and After Acute Fish Oil Supplementation in Men and Women
(University of Waterloo, 2007-09-17)Omega-3 fatty acids, particularly docosahexaenoic (DHA) and eicospentaenoic acid (EPA), are important mediators for cardiovascular disease, fetal/infant development, neurological disorders and inflammatory diseases. ...