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Articles 1 - 30 of 248
Full-Text Articles in Kinesiology
New Perspectives On Foot Segment Forces And Joint Kinetics - Integrating Plantar Shear Stresses And Pressures With Multi-Segment Foot Modeling, Dustin A. Bruening, Spencer R. Petersen, Sarah T. Ridge
New Perspectives On Foot Segment Forces And Joint Kinetics - Integrating Plantar Shear Stresses And Pressures With Multi-Segment Foot Modeling, Dustin A. Bruening, Spencer R. Petersen, Sarah T. Ridge
Faculty Publications
The role of the foot in gait is not well understood, in part due to challenges in capturing and utilizing segmental ground reaction forces. The purposes of this study were to 1) develop methodology to integrate plantar pressure/shear stresses with a multi-segment foot model, and 2) generate and display key normative data from this combined system. Twenty-six young healthy adults walked barefoot (1.3 m/s) across a pressure/shear sensor with markers matching a published 4-segment kinetic foot model. A novel anatomical/geometric masking method was developed that successfully separated regions aligned with model segmentation. This template-based method can be automated and customized …
The Metabolic Effects Of Exercise And A Pre-Exercise Snack During A 30-Hour Fast, Katelynn Hales, Hil'ilei Chan, Landon S. Deru, Jake Moss, Bruce W. Bailey Ph.D.
The Metabolic Effects Of Exercise And A Pre-Exercise Snack During A 30-Hour Fast, Katelynn Hales, Hil'ilei Chan, Landon S. Deru, Jake Moss, Bruce W. Bailey Ph.D.
Library/Life Sciences Undergraduate Poster Competition 2022
As incidence rates of chronic illnesses continue to increase, many pharmacological and lifestyle interventions have been undertaken to pinpoint effective treatment and prevention tools to combat them. One such intervention of recent interest includes the use of fasting. Ketones, a product of fat breakdown, are thought to be a key player in some of the health benefits achieved through fasting. Despite potential benefits, adhering to a fasting regimen can be difficult. While it is generally well-tolerated, some experience negative side effects,² indicating potential issues with long-term adherence. Heilbronn et al. suggest that a small meal on fasting days may be …
Validity Of Ultrasound Imaging For Intrinsic Foot Muscle Cross-Sectional Area Measurements Demonstrated By Strong Agreement With Mri, Dallin C. Swanson, Joshua K. Sponbeck, Derek A. Swanson, Connor D. Stephens, Steven P. Allen, Ulrike H. Mitchell, James D. George, A. Wayne Johnson
Validity Of Ultrasound Imaging For Intrinsic Foot Muscle Cross-Sectional Area Measurements Demonstrated By Strong Agreement With Mri, Dallin C. Swanson, Joshua K. Sponbeck, Derek A. Swanson, Connor D. Stephens, Steven P. Allen, Ulrike H. Mitchell, James D. George, A. Wayne Johnson
Library/Life Sciences Undergraduate Poster Competition 2022
Intrinsic foot muscles maintain foot structural integrity and contribute to functional movement, posture and balance Thus, assessing intrinsic foot muscle size and strength are important One way to assess strength of a muscle is by measuring its cross sectional area ( Magnetic resonance imaging ( and ultrasound ( are two modalities allowing for visualization of these muscle bodies MRI has been shown to accurately image the individual muscles but is costly and time consuming US imaging may provide an alternative that is less costly and more readily available The purpose of this study was to investigate the validity and reproducibility …
Low-Cost Prosthetic Feet For Underserved Populations: A Comparison Of Gait Analysis And Mechanical Stiffness, Kaleigh Renninger, Brevin Banks, Dustin A. Bruening
Low-Cost Prosthetic Feet For Underserved Populations: A Comparison Of Gait Analysis And Mechanical Stiffness, Kaleigh Renninger, Brevin Banks, Dustin A. Bruening
Library/Life Sciences Undergraduate Poster Competition 2022
- Lower limb loss is an ongoing cause of disability throughout the world.
- Despite advancements in prosthetic technologies, there are numerous underserved populations in need of effective low-cost prosthetic foot options.
The Effects Of Exercise On Inflammatory Biomarkers Over A 36-H Fast, Austin F. Duersch, Bruce W. Bailey, Landon S. Deru, Jacob Coleman, Hunter Chamberlain, Spencer Cleverly
The Effects Of Exercise On Inflammatory Biomarkers Over A 36-H Fast, Austin F. Duersch, Bruce W. Bailey, Landon S. Deru, Jacob Coleman, Hunter Chamberlain, Spencer Cleverly
Library/Life Sciences Undergraduate Poster Competition 2022
Diet-induced chronic inflammation has become a popular point of discussion over recent years in lifestyle medicine as studies have uncovered the effects that inflammation markers have on chronic diseases including heart disease, diabetes, and arthritis. Each time we eat, an immune response is stimulated resulting in increased levels of inflammatory biomarkers.1,2 Interventions to help lower inflammation could help promote longevity and decrease risk of chronic diseases. This study assessed the impact of an acute 36h fast with and without exercise at the beginning on inflammatory biomarkers IL-6, C-peptide, GIP, MCP-1, and TNF-alpha.
Validity Of Intrinsic Foot Muscle Size Measured By Ultrasound And Mri, Dallin Swanson
Validity Of Intrinsic Foot Muscle Size Measured By Ultrasound And Mri, Dallin Swanson
Undergraduate Honors Theses
Intrinsic foot muscles maintain foot structural integrity and contribute to functional movement, posture and balance. Thus, assessing intrinsic foot muscle size and strength are important. Magnetic resonance imaging (MRI) has been shown to accurately image the individual muscles but is costly and time consuming. Ultrasound (US) imaging may provide an alternative that is less costly and more readily available. The purpose of this study was to investigate the validity and reproducibility of US imaging in measuring intrinsic foot muscle size in comparison to MRI. US and MRI were employed to measure the intrinsic foot muscle size involving 35 participants (females …
Milk-Fat Intake And Differences In Abdominal Adiposity And Bmi: Evidence Based On 13,544 Randomly Selected Adults, Klarissa Rae Wilkinson
Milk-Fat Intake And Differences In Abdominal Adiposity And Bmi: Evidence Based On 13,544 Randomly Selected Adults, Klarissa Rae Wilkinson
Theses and Dissertations
The primary objective of this study was to evaluate the relationship between milk-fat intake and obesity, particularly abdominal obesity, in 13,544 U.S. adults. A secondary objective was to determine the extent to which the association was influenced by multiple potential confounding variables. This cross-sectional study used data from the 2011–2016 National Health and Nutrition Examination Survey (NHANES). Level of milk-fat content regularly consumed was the exposure variable. Body mass index (BMI) and sagittal abdominal diameter (SAD), a measure of abdominal obesity, were the outcome variables. SAD correlates strongly with visceral fat, when measured by computed tomography, and has been shown …
The Relationship Between Vascular Endothelial Function Andpeak Exercise Blood Flow, Brady Edward Hanson
The Relationship Between Vascular Endothelial Function Andpeak Exercise Blood Flow, Brady Edward Hanson
Theses and Dissertations
Purpose The vascular endothelium is an influential contributor to vasodilation at rest, yet its role during peak exercise is relatively unknown. The purpose of this study is to determine if exercise leg blood flow during dynamic submaximal and maximal exercise is related to resting vascular endothelial function. Methods Nineteen subjects (aged 23 ± 0.57 yr) completed multiple assessments of vascular endothelial function including passive leg movement (PLM), rapid onset vasodilation, (ROV) and flow-mediated dilation (FMD). Peak muscle blood flow was assessed during single leg knee extension (KE) exercise. Doppler ultrasound of the femoral artery was utilized to assess muscle blood …
Effect Of Cuff Pressure On Blood Flow During Blood Flow-Restricted Rest And Exercise, Kent Westerberg Crossley
Effect Of Cuff Pressure On Blood Flow During Blood Flow-Restricted Rest And Exercise, Kent Westerberg Crossley
Theses and Dissertations
Purpose: The purpose of this study was to investigate the blood flow/pressure relationship (linear or nonlinear) in the superficial femoral artery when seated, as well as to investigate blood flow changes with exercise using varying cuff pressures and a preexercise (PE) condition. The presence of venous outflow with occlusion at rest and exercise was also investigated.Methods: Twenty-three subjects visited the lab on 3 occasions. First to determine linearity of blood flow using 0% to 90% arterial occlusion pressure (AOP), and venous outflow at rest and during exercise with cuff inflated to 40% AOP. Subsequent visits compared blood flow between rest …
The Role Of The Midfoot In Drop Landings, Mark T. Olsen, Dustin A. Bruening, A. Wayne Johnson, Sarah T. Ridge
The Role Of The Midfoot In Drop Landings, Mark T. Olsen, Dustin A. Bruening, A. Wayne Johnson, Sarah T. Ridge
Faculty Publications
Purpose: The midfoot is instrumental to foot function; however, quantifying its roles in human movement has been difficult. A forceful dynamic activity like landing may help elucidate the midfoot’s contribution to foot energetics and function. The main purpose of this study was to measure midtarsal joint kinematics and kinetics during a barefoot single-leg landing task. A secondary aim of this study was to explore the relationship between static foot posture and dynamic midfoot function.
Methods: In a cross-sectional study design, 48 females (age = 20.4 ± 1.8 yr, body mass index = 21.6 ± 1.7 kg/m) performed drop landings from …
A Sport-Specific Wearable Jump Monitor For Figure Skating, Dustin A. Bruening, Riley E. Reynolds, Chris W. Adair, Peter Zapalo, Sarah T. Ridge
A Sport-Specific Wearable Jump Monitor For Figure Skating, Dustin A. Bruening, Riley E. Reynolds, Chris W. Adair, Peter Zapalo, Sarah T. Ridge
Faculty Publications
Advancements in wearable technology have facilitated performance monitoring in a number of sports. Figure skating may also benefit from this technology, but the inherent movements present some unique challenges. The purpose of this study was to evaluate the feasibility of using an inertial measurement unit (IMU) to monitor three aspects of figure skating jumping performance: jump count, jump height, and rotation speed. Seven competitive figure skaters, outfitted with a waist-mounted IMU, performed a total of 59 isolated multi-revolution jumps and their competition routines, which consisted of 41 multi-revolution jumps along with spins, footwork, and other skills. The isolated jumps were …
The Effects Of Ice And Tens Combination Treatment On Knee And Hip Joint Neuromechanics In Individuals With Experimentally Induced Knee Pain During Running, Sunku Kwon
Theses and Dissertations
Context: Knee injury is a common problem for runners. Knee pain is a common symptom in knee injury and is associated with alterations in knee and hip muscle activation and hip joint angles. Relieving pain through intervention may help to restore neuromuscular function. Objective: To examine the effects of ice and transcutaneous electrical nerve stimulation (TENS) combination treatment on perceived knee pain, hip frontal plane angle, and muscle activation during running in individuals with experimental knee pain (EKP). Design: Crossover. Setting: Laboratory. Subjects: 19 participants (11 males and 8 females, 23.2 ± 1.9 y, 176 …
Gait Alterations And Plantar Pressure In Diabetic Peripheral Neuropathy: A Preliminary Study, Adrienne Dora Henderson
Gait Alterations And Plantar Pressure In Diabetic Peripheral Neuropathy: A Preliminary Study, Adrienne Dora Henderson
Theses and Dissertations
Background: Despite a lack of consensus on its utility, clinicians have traditionally relied on plantar pressure (PP) to predict ulcer risk and prescribe interventions in individuals with diabetic peripheral neuropathy (DPN). Joint kinematics and kinetics have the potential to contribute to DPN assessment and treatment, however previous studies have not accounted for walking speed nor integrated a full-body analysis with a detailed foot model. Purpose: To assess PP and gait alterations in DPN by controlling walking speed and incorporating a multisegment foot model into a full-body gait analysis. We hypothesize that hip and ankle kinetics will be altered consistent with …
Passive Hallux Adduction Decreases Blood Flow To Plantar Fascia, Julia Lorene Dunbar
Passive Hallux Adduction Decreases Blood Flow To Plantar Fascia, Julia Lorene Dunbar
Theses and Dissertations
Purpose: Due to the vital role that blood flow plays in maintaining tissue health, compromised blood flow can prevent effective tissue healing. An adducted hallux, as often seen inside a narrow shoe, may put passive tension on the abductor hallucis, consequently compressing the lateral plantar artery (LPA) into the calcaneus and thus restricting blood flow. The purpose of this study was to compare blood flow within the LPA before and after passive hallux adduction (PHA). Methods: Forty-five healthy volunteers (20 female, 25 male; age = 24.8 ± 6.8 yr; height = 1.7 ± 0.1 m; weight = 73.4 ± 13.5 …
The Effect Of Photobiomodulation Therapy On Exercise-Induced Muscle Damage, Kathleen Nichole Thiriot
The Effect Of Photobiomodulation Therapy On Exercise-Induced Muscle Damage, Kathleen Nichole Thiriot
Theses and Dissertations
Purpose: To explore the difference between continuous and pulsed photobiomodulation (PBMT) versus a placebo treatment when using a red-blue light combination over multiple treatment sessions to decrease the symptoms of muscle damage in the quadriceps muscle after a bout of muscle damaging exercise. Methods: Thirty-six healthy, nonactive male and female participants were randomly assigned to one of three groups: continuous PBMT, pulsed PBMT, and placebo treatment. Participants were assessed for muscle damage with knee extension maximal isometric and isokinetic contractions, as well as Visual Analog Scale (VAS) and Lower Extremity Functional Scale (LEFS) scores. Blood creatine kinase (CK) was also …
Effects Of Ice Massage Prior To An Iontophoresis Treatment Using Dexamethasone, Brady Michael Smith
Effects Of Ice Massage Prior To An Iontophoresis Treatment Using Dexamethasone, Brady Michael Smith
Theses and Dissertations
Context: Low current intensity iontophoresis treatments have shown an increase in skin perfusion over 700% from baseline potentially increasing drug clearance from the targeted area. Objective: To determine the effects of a 10-minute ice massage on subcutaneous dexamethasone sodium phosphate (Dex-P) concentration and skin perfusion during and after a 4 mA iontophoresis treatment. Design: Controlled laboratory study. Setting: Research Laboratory. Patients or Other Participants: 26 individual participants (Males = 15, Females = 11, age = 25.6 ± 4.5 y, height = 173.9 ± 8.51 cm, mass = 76.11 ± 16.84 kg). Interventions: Participants were randomly assigned into two groups: 1) …
The Effects Of A Three-Hour, After School Bout Of Sedentary Vs Active Behavior On Reward And Cognitive Control Activation In 8- To 9-Year-Old Children: A Randomized Crossover Study, Mary Linn White
Theses and Dissertations
PURPOSE: To compare the effects of after-school sedentary versus active play on activation in the reward and cognitive control regions of the brain to pictures of high- and low-calorie foods. METHODS: 32 children (12 girls, 20 boys; age 8.7 ± 0.5 years; height 137.9 ± 6.9 cm; weight 32.4 ± 6.2 kg) participated in a randomized crossover study with counterbalanced treatment conditions. Conditions took place on separate days after school and included three hours of active or sedentary play. After each condition, neural activation in reward and cognitive control regions of the brain were assessed using functional magnetic resonance imaging …
Can A Preseason Screen Predict Injury Or Performance Over Three Years Of College Football?, Bartley B. Mortensen
Can A Preseason Screen Predict Injury Or Performance Over Three Years Of College Football?, Bartley B. Mortensen
Theses and Dissertations
Purpose: To investigate if the Functional Movement Screen (FMSâ„¢) total score, individual component test scores or number of asymmetries can predict noncontact injury risk or player performance over three consecutive seasons of NCAA Division I football. Methods: As football teams are comprised of individuals with vastly different physical characteristics and playing responsibilities, we divided the subjects into three homogeneous groups based on position (Big, Combo and Skill). Each FMSâ„¢ score was assessed with regard to the total team score as well as by individual position groups. For our injury analysis we also controlled for exposure. For player performance we controlled …
Positional Release Therapy Versus Therapeutic Massage In Reducing Muscle Trigger And Tender Points, Amber Hancock Bethers
Positional Release Therapy Versus Therapeutic Massage In Reducing Muscle Trigger And Tender Points, Amber Hancock Bethers
Theses and Dissertations
Objective: To determine the difference in effectiveness of positional release therapy (PRT) compared with therapeutic massage (TM) in treating trigger and tender points in the upper trapezius muscle. Background: Trigger points in the upper trapezius muscle are common and can be painful. Therapeutic massage is a more traditional treatment method for this condition while PRT is relatively new. Design and Setting: A randomized-group design was used to examine the differences between the 2 treatments for reducing pain and muscle tension. Subjects: Sixty healthy subjects (males = 24, females = 36; age = 27.1 ± 8.8 years; wt = 75.2 ± …
Positional Release Therapy Versus Therapeutic Massage In Reducing Muscle Trigger And Tender Points, Amber Hancock Bethers
Positional Release Therapy Versus Therapeutic Massage In Reducing Muscle Trigger And Tender Points, Amber Hancock Bethers
Theses and Dissertations
Objective: To determine the difference in effectiveness of positional release therapy (PRT) compared with therapeutic massage (TM) in treating trigger and tender points in the upper trapezius muscle. Background: Trigger points in the upper trapezius muscle are common and can be painful. Therapeutic massage is a more traditional treatment method for this condition while PRT is relatively new. Design and Setting: A randomized-group design was used to examine the differences between the 2 treatments for reducing pain and muscle tension. Subjects: Sixty healthy subjects (males = 24, females = 36; age = 27.1 ± 8.8 years; wt = 75.2 ± …
The Effect Of Whole-Body Vibration In Repositioning The Talus In Chronic Ankle Instability Populations, Melissa Nicole Frixione
The Effect Of Whole-Body Vibration In Repositioning The Talus In Chronic Ankle Instability Populations, Melissa Nicole Frixione
Theses and Dissertations
Context: Dorsiflexion range of motion (DFROM) is often limited in patients with chronic ankle instability (CAI). Whole-body vibration (WBV) may enhance DFROM by helping to reposition the talus and assisting with talocrural arthrokinematics. Objective: To determine if WBV can enhance DFROM in patients with ankle instability and determine if talar position is affected. Setting: Cohort study. Patients or Other Participants: A total of 25 subjects with CAI (17 women, 8 men; age = 22 ±2.101 years, mass = 72.4 ±17.9 kg, height = 171.2 ± 11.6 cm) participated. Intervention(s): Participants in the WBV group completed a 4-week (12 session) WBV …
Walking In Minimalist Shoes Is Effective For Strengthening Foot Muscles, Sarah T. Ridge, Mark T. Olsen, Dustin A. Bruening, Kevin Jurgensmeier, David Griffin, Irene S. Davis, A. Wayne Johnson
Walking In Minimalist Shoes Is Effective For Strengthening Foot Muscles, Sarah T. Ridge, Mark T. Olsen, Dustin A. Bruening, Kevin Jurgensmeier, David Griffin, Irene S. Davis, A. Wayne Johnson
Faculty Publications
Introduction: Weakness of foot muscles may contribute to a variety of loading-related injuries. Supportive footwear may contribute to intrinsic foot muscle weakness by reducing the muscles’ role in locomotion (e.g., absorbing forces and controlling motion). Increased stimulus to the foot muscles can be provided through a variety of mechanisms, including minimalist footwear and directed exercise.
Purpose: To determine the effect of walking in minimalist footwear or performing foot strengthening exercises on foot muscle size and strength.
Methods: Fifty-seven runners were randomly assigned to one of three groups—minimalist shoe walking (MSW), foot strengthening (FS) exercise, or control (C). All groups maintained …
Comparison Of Varying Heel To Toe Differences And Cushion To Barefoot Running In Novice Minimalist Runners, Danny Moody, Iain Hunter, Sarah T. Ridge, J. William Myrer
Comparison Of Varying Heel To Toe Differences And Cushion To Barefoot Running In Novice Minimalist Runners, Danny Moody, Iain Hunter, Sarah T. Ridge, J. William Myrer
Faculty Publications
There are many different types of footwear available for runners in today’s market. Many of these shoes claim to help runners run more efficiently by altering an individual’s stride mechanics. Minimalist footwear claims to aid runners run more on their forefeet whereas more traditional footwear provides more cushioning specifically for a heel first landing. The purpose of this paper was to determine if runners, who were accustomed to running in traditional footwear would alter their running mechanics while running acutely in various types of minimalist footwear. Twelve subjects, accustomed to running in traditional 12 mm heel/toe differential footwear, ran in …
The Role Of The Midfoot In Drop Landings, Mark Taylor Olsen
The Role Of The Midfoot In Drop Landings, Mark Taylor Olsen
Theses and Dissertations
The contribution of the midfoot in landing mechanics is understudied. Therefore, the main purpose of this study was to quantify midtarsal joint kinematics and kinetics during a barefoot single-leg landing task. A secondary aim of this study was to explore the relationship between static foot posture and dynamic midfoot function. In a cross-sectional study design, 48 females (age = 20.4 ± 1.8 yr, height = 1.6 ± 0.06 m, weight = 57.3 ± 5.5 kg, BMI = 21.6 ± 1.7 kg·m-1) performed drop landings from a height of 0.4 m onto split force platforms. Subjects hung from wooden …
Response Inhibition To High Calorie Food Cues Among Adolescents Following Active And Sedentary Video Game Play Using A Go/No-Go Task: A Randomized Crossover Study, Joshua L. Smith
Theses and Dissertations
Sedentary behaviors, such as leisure time computer use and sedentary video games, are significant barriers to regular physical activity and contribute to high rates of overweight and obesity among adolescents. Sedentary screen time can adversely affect food intake and food selection. Active video games may be a promising way of increasing daily physical activity levels among adolescents. Active video games may help modulate response inhibition and food intake. PURPOSE: Compare the effects of an acute bout of active and sedentary video gaming on N2 amplitudes (while viewing high calorie and low calorie images), Stroop Color Word Test (Stroop test) performance …
Response Inhibition To High Calorie Food Cues Among Adolescents Following Active And Sedentary Video Game Play Using A Go/No-Go Task: A Randomized Crossover Study, Joshua L. Smith
Theses and Dissertations
Sedentary behaviors, such as leisure time computer use and sedentary video games, are significant barriers to regular physical activity and contribute to high rates of overweight and obesity among adolescents. Sedentary screen time can adversely affect food intake and food selection. Active video games may be a promising way of increasing daily physical activity levels among adolescents. Active video games may help modulate response inhibition and food intake. PURPOSE: Compare the effects of an acute bout of active and sedentary video gaming on N2 amplitudes (while viewing high calorie and low calorie images), Stroop Color Word Test (Stroop test) performance …
Clinical Predictors Of Movement Patterns In Patients With Chronic Ankle Instability, Seong Jun Son
Clinical Predictors Of Movement Patterns In Patients With Chronic Ankle Instability, Seong Jun Son
Theses and Dissertations
BACKGROUND: Chronic ankle instability (CAI) patients have varying levels of mechanical and sensorimotor impairments that may lead to disparate functional movement patterns. Current literature on landing biomechanics in a CAI population, however, considers all patients as a homogeneous group. In our prior work, we identified 6 subgroups of movement patterns using lower extremity kinematics during a landing/cutting task and that showed promise in furthering understanding of movement patterns in a laboratory-based environment. To increase the utility of this methodology in clinical settings, there is a need to find easily administered clinical tests that can help identify multiple subgroups of movement …
Ground Reaction Forces For Irish Dance Landings In Hard And Soft Shoes, Sarah Elizabeth Klopp
Ground Reaction Forces For Irish Dance Landings In Hard And Soft Shoes, Sarah Elizabeth Klopp
Theses and Dissertations
Introduction: Irish dance has evolved to become more athletically demanding, thus making the art form very hard on dancers' bodies. Irish dancers must land from difficult moves without letting their knees bend or heels touch the ground, causing large amounts of force to be absorbed by the body. Past studies have found dancers landing with a range of 4.5–6 times body weight, potentially causing high amounts of overuse injury. The majority of injuries incurred by Irish dancers are due to overuse (79.6%). The landings that occur in Irish dance have been minimally evaluated in current literature. Obtaining values of vertical …
Does Any Good Come From A Coach That Yells? Reflective Experiences From Former Athletes, David C. Barney, Alema Tauiliili
Does Any Good Come From A Coach That Yells? Reflective Experiences From Former Athletes, David C. Barney, Alema Tauiliili
Faculty Publications
Yelling in society is a common occurrence. Parents yell at their children, bosses yell at their employees and coaches yell at their athletes. Yet, in many cases the yelling coach exhibits unkind, loud in nature, and very personal statements. The purpose of this study was to better understand former athlete’s perspectives regarding their thoughts and experiences of their coaches yelling at them. For this study yelling will imply saying loud, unkind, personal comments towards the athlete. For this study 124 former athletes were surveyed regarding their experiences with a yelling coach. Generally, it was found that the former athletes did …
The Effects Of Physical Activity, Sedentary Time, And Atherosclerosison Fluid Flow In The Lumbar Intervertebral Disc, Jennifer Ann Bowden
The Effects Of Physical Activity, Sedentary Time, And Atherosclerosison Fluid Flow In The Lumbar Intervertebral Disc, Jennifer Ann Bowden
Theses and Dissertations
Physical activity impacts health and disease in multiple body tissues including the intervertebral discs. Fluid flow within the disc is an indicator of disc health that can be observed using diffusion weighted magnetic resonance imaging. We monitored activity levels of 26 participants, age 35 to 55 yrs, using Actigraph accelerometers for four days to evaluate vigorous-intensity activity, moderate to vigorous-intensity activity, and sedentary time. Participants underwent structural and diffusion weighted magnetic resonance imaging to evaluate intervertebral disc health and fluid flow. They also underwent bone density scans, carotid artery ultrasounds, a treadmill test, and a physical exam for pain, range …