Browsing Kinesiology and Health Sciences by Title
Now showing items 27-46 of 463
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Bioelectrical Impedance Analysis Overestimates Fat-Free Mass in Breast Cancer Patients Undergoing Treatment
(Wiley, 2020-12)Background: Bioelectrical impedance analysis (BIA) is commonly used to assess fat-free mass (FFM) and fat mass (FM) in breast cancer patients. However, because of the prevalence of overweight, obesity and variable hydration ... -
Biomechanical Assessment of Cycling Helmets: the Influence of Headform and Impact Velocity based on Cycling Collisions associated with Injury Claims
(University of Waterloo, 2015-01-23)The goal of my thesis was to fill some of the gaps in knowledge about cyclist/motor vehicle collisions and testing guidelines for cycling helmets. Cycling collisions with motor vehicles represent a problem for the Canadian ... -
A biomechanical investigation into the link between simulated job static strength and psychophysical strength: Do they share a “weakest link” relationship?
(University of Waterloo, 2011-01-17)Maximum voluntary forces and psychophysically acceptable forces are often used to set force guidelines for exertions as a means to protect against overexertion injuries in the workplace. The focus of this dissertation was ... -
Biomechanical Predictors of Functionally Induced Low Back Pain, Acute Response to Prolonged Standing Exposure, and Impact of a Stabilization-Based Clinical Exercise Intervention
(University of Waterloo, 2009-07-24)Purpose: Biomechanical differences between people with low back pain (LBP) and healthy controls have been shown previously. LBP has been associated with standing postures in occupational settings. A transient pain-generating ... -
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 ... -
Biomechanics of Lateral Hip Impacts: the Influence of Measurement Technique and Contact Area
(University of Waterloo, 2014-02-21)The experiments presented in this thesis provide novel insight into two scarcely studied areas in the field of lateral hip impact biomechanics. The high energy nature of hip impacts requires high sampling rates for accurate ... -
Breast cancer survivor functional changes immediately following treatment: quantifying mechanisms of strength deficits and compensatory kinematic and muscular strategy adaptations
(University of Waterloo, 2021-11-04)Breast cancer is prevalent among Canadian women, but treatments may cause functional impairments among survivors. Over 22,000 Canadian women join the survivor population yearly (Brenner et al., 2020). Despite this substantial ... -
Bridging the gap between physical activity evidence and practice for older adults with osteoporosis and frailty
(University of Waterloo, 2021-12-09)Exercise prescriptions that include moderate or high intensity progressive, resistance training, and functional and balance training may improve physical functioning and disability outcomes and prevent falls in older adults ... -
Build better bones with exercise (B3E pilot trial): results of a feasibility study of a multicenter randomized controlled trial of 12 months of home exercise in older women with vertebral fracture
(Springer, 2018-08-08)Summary We pilot-tested a trial of home exercise on individuals with osteoporosis and spine fracture. Our target enrollment was met, though it took longer than expected. Participants stayed in the study and completed ... -
Butylated hydroxytoluene can protect polyunsaturated fatty acids in dried blood spots from degradation for up to 8 weeks at room temperature
(BioMed Central, 2013-02-20)Background: Dried blood spots (DBS) from fingertip prick blood can enable high throughput fatty acid profiling but may be prone to lipid peroxidation during storage. The use of butylated hydroxytoluene (BHT) on chromatography ... -
Can Altering Hip Joint Fluid Volume and Intra-Capsular Pressure Influence Muscle Activation Patterns? Neuromuscular Implications on Clinical Practice
(University of Waterloo, 2011-05-03)Although the integrated relationship that exists between the lumbar spine and hip joints is frequently acknowledged in scientific journals and by medical professionals, specific functional and injury relationships, are ... -
Cardiac motion simulation in cadavers and carotid artery longitudinal wall behaviour
(University of Waterloo, 2023-12-21)Carotid artery longitudinal motion (CALM) is a bidirectional, multiphasic motion of the intima-media complex of the common carotid artery (CCA) wall. This motion has exhibited changes with aging, elevated cardiovascular ... -
Cardiovascular Deconditioning Resulting from 28-hour Bed-rest and the Efficacy of the Fluid Loading Countermeasure
(University of Waterloo, 2010-01-11)This study tested the hypotheses that 1) 28h head-down bed-rest (HDBR) would result in significant hypovolemia and cardiovascular deconditioning, and that 2) NASA’s fluid loading protocol (ingestion of 15 ml/kg water with ... -
Cardiovascular responses of women to orthostatic stress, the effects of the menstrual cycle and age, and a comparison to men
(University of Waterloo, 2010-08-10)Young women are known to exhibit a greater incidence of orthostatic hypotension than men. The exact mechanisms for this are unclear and it has been proposed to be related to cardiac filling, peripheral resistance, and/or ... -
Cause or Consequence? The Interrelationship Between Physical Activity and Fractures
(University of Waterloo, 2021-08-30)Our study characterized the physically active and non-active circumstances during which fractures occur and explored long-term effects on physical activity following one or more fractures of the hip or pelvis, spine, upper ... -
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 ... -
Cerebral Autoregulatory Response to Postural Changes and Walking in Older Adults with Heart Failure
(University of Waterloo, 2019-09-18)Individuals with heart failure (HF) have reduced cerebral blood flow (CBF) compared to age- matched older adults. This might be related to an impairment in cerebral autoregulation (CA), or an impairment in the CA mechanisms ... -
Cerebral Blood Flow Response to Posture Transition and Walking in Older Adults with Heart Failure
(University of Waterloo, 2019-08-29)Individuals with heart failure (HF) have lower cerebral blood flow (CBF) and oxygenation at rest, and lower cerebral oxygenation at peak exercise, likely due to insufficient cardiac output and poor respiratory function; ... -
Cerebrovascular and cardiovascular responses to lower body negative pressure and posture change in the elderly
(University of Waterloo, 2012-08-27)Lower body negative pressure (LBNP) is frequently used in the research setting as a means to induce orthostatic stress. This tool is applicable to typical movements during daily living only if the associated responses are ... -
Cerebrovascular hemodynamics in older adults: Associations with lifestyle, peripheral vascular health and functional decline
(University of Waterloo, 2013-04-25)In today’s aging population, cerebrovascular health plays a pivotal role in maintaining independence. The identification of early markers of change might help to plan more appropriate preventative and/or therapeutic measures. ...