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Articles 1 - 30 of 185
Full-Text Articles in Kinesiology
The Hemostatic Effects Of Acute Exposure To Colored Cornstarch Powder During A 5k Run, Robert C. Allsbrook
The Hemostatic Effects Of Acute Exposure To Colored Cornstarch Powder During A 5k Run, Robert C. Allsbrook
Senior Honors Projects, 2010-2019
PURPOSE: To examine the acute hemostatic effects of particulate matter (PM) in the form of colored corn starch powder during a 5 kilometer race. METHODS: 10 recreationally active adults completed two 5k runs, one with color and one without color. 10 mL blood samples were taken 6 hours prior to the trial and immediately following the trial. PAI-1 activity, FVIII antigen, and tPA activity were measured using an ELISA. RESULTS: No significant main effects or interaction effects (P<0.05) were observed among any of the variables although a trend (P = 0.082) was observed for increased PAI-1 activity during exercise in the color condition. CONCLUSIONS: There is a trend towards increased PAI-1 activity levels during exercise during color runs that could be due to increased inflammation. Furthermore, the lack of increased FVIII:ag and tPA activity suggests that the intensity of the exercise may not have been adequate and further research should be conducted in this area.
Motor Control In Individuals With Multiple Sclerosis, David Arpin
Motor Control In Individuals With Multiple Sclerosis, David Arpin
Theses & Dissertations
This dissertation explored motor control in individuals with multiple sclerosis (MS) by quantifying the behavioral and neurophysiological deficits present in these individuals. We behaviorally quantified the precision of the ankle plantarflexor musculature of individuals with MS. Our results indicated that the individuals with MS had a greater amount of variability in the precision of the isometric ankle torques, and that this greater variability was related to decreased walking performance. To further explore whether these motor control deficits were due to aberrant cortical activity associated with planning motor actions, we used magnetoencephalography to assess the motor planning and execution stages of …
The Impact Of Stability Ball Seating On Behavior And Academic Achievement Among Elementary School Students In Grades 1 Through 4., Sheila R. Borders
The Impact Of Stability Ball Seating On Behavior And Academic Achievement Among Elementary School Students In Grades 1 Through 4., Sheila R. Borders
Doctoral Dissertations
This study was designed to answer three questions: 1) What is the impact of stability ball seating on the behavior of students in grades 1 through 4? 2) What is the impact of stability ball seating on the mathematics scores of students in grades 1 through 4? and 3) What is the impact of stability ball seating on the reading scores of students in grades 1 through 4? Research has shown that stability ball seating is linked to behavior and academic achievement among students diagnosed with attention deficit hyperactivity disorder (ADHD) and/or autism spectrum disorder (ASD). This study examines the …
Hashtagging Your Health: Using Psychosocial Variables And Social Media Use To Understand Impression Management And Exercise Behaviors In Women, Caitlyn Hauff
Theses and Dissertations
Our society has become heavily reliant on social media, especially in the health and exercise domain. Social and environmental factors impact females’ body image perceptions and create body image disturbances, yet little research is dedicated to the exploration of how social media, and social comparisons through social media exposure, impact exercise behaviors and body image perceptions in females. Considering Perloff's (2014) theoretical model, the current study explored how the interaction between individual psychosocial variables and social media use predict exercise behaviors and engagement in impression management in women. Using a mixed methodological approach, the specific aims of this study were …
The Effects Of Experimental Anterior Knee Pain On Bilateral Ground Reaction Forces During Running, Emily Rachel Cronk
The Effects Of Experimental Anterior Knee Pain On Bilateral Ground Reaction Forces During Running, Emily Rachel Cronk
Theses and Dissertations
The purpose of this study was to examine the independent effects of anterior knee pain (AKP) on bilateral ground reaction force (GRF) during running, with a focus on GRF applied to the uninvolved leg, which, prior to this study, had never been evaluated. Twelve volunteers completed three data collection sessions, that corresponded to one of three conditions (control, sham, and pain), in a counterbalanced order. For each session, subjects ran for five minutes. For the pain and sham sessions, respectively, hypertonic and isotonic saline were infused into the infrapatellar fat pad of the right leg during the running, while no …
Effects Of Synthetic Turf And Shockpads On Impact Attenuation Related Biomechanics During Drop Landing, Hang Qu
Masters Theses
Synthetic turf has been widely utilized in sports since 1964. Discrepancies, however, in injury incidence on synthetic turf and natural grass have been reported throughout studies. Adding a shock pad under synthetic turf carpet is claimed to aid in energy absorption and decrease impact loading. Although some studies have conducted materials tests and compared mechanical characteristics of synthetic turf with different shock pads, no studies have examined biomechanical characteristics of impact related human movements on an infilled synthetic turf system with different underlying shock pads. The purpose of this research was to investigate effects of an infilled synthetic turf with …
Effects Of Wider Step Width On Knee Biomechanics In Obese And Healthy-Weight Participants During Stair Ascent, Derek Scott Yocum
Effects Of Wider Step Width On Knee Biomechanics In Obese And Healthy-Weight Participants During Stair Ascent, Derek Scott Yocum
Masters Theses
An increased likelihood of developing obesity-related knee osteoarthritis may be associated with increased peak internal knee abduction moment. Increases in step width may act to reduce this moment. This study focused on how step width influenced the knee joint during stair ascent by healthy and obese participants. Participants ascended stairs while walking at their preferred speed and under one of two step width conditions – preferred and increased. Obese participants experienced greater mediolateral and vertical ground reaction forces (GRFs), as well as increased peak knee extensor moments and push-off peak internal knee adduction moments. The findings of this study indicate …
A Comparison Of Multipath And Conventional Neuromuscular Electrical Stimulation, Cody Brian Bremner
A Comparison Of Multipath And Conventional Neuromuscular Electrical Stimulation, Cody Brian Bremner
Dissertations
Neuromuscular electrical stimulation (NMES) is the use of an electrical current for the purpose of eliciting a muscular response, and these treatments are most often used clinically for the specific purpose of increasing quadriceps strength. It is commonly accepted that the effectiveness of NMES for this purpose is primarily determined by the NMES training intensity. However, spatially limited motor unit recruitment, fatigue and discomfort negatively impact NMES-induced torque, which subsequently reduces NMES training intensities. Due to the importance of NMES training intensity, a substantial amount of research has focused on strategies designed to increase NMES-induced torque production, as well as …
The Differences In Time To Stability, Foot Muscle Size, And Toe Flexor Strength Between Cheerleaders And Gymnasts, Kelsey Renee Garner
The Differences In Time To Stability, Foot Muscle Size, And Toe Flexor Strength Between Cheerleaders And Gymnasts, Kelsey Renee Garner
Theses and Dissertations
Context: There has been recent speculation that the intrinsic muscles of the foot may play a larger role in lower extremity control and injury than previously believed. Multiple studies have shown that certain intrinsic muscles increase in size and strength after transitioning to minimalist shoe running, theoretically decreasing injury risk. There are currently no studies that examine the effect that training barefoot has in other athletic populations. Objective: Our purpose was to compare the intrinsic and extrinsic foot muscle size and strength in gymnasts (who predominantly train barefoot) and cheerleaders (who predominantly train shod). Another purpose was to measure time …
The Effects Of An Inclined And Declined Slope On Backward Locomotion: A Kinematic And Electromyographic Analysis Of Retrowalking, Song Dan Vo
UNLV Theses, Dissertations, Professional Papers, and Capstones
The purpose of this study was to investigate the effects of an inclined and declined slopeon kinematic properties and muscle activation magnitudes. This purpose was achieved by using a +10% grade for inclined backward walking (IBW) and -10% grade for declined backwardwalking (DBW) on a treadmill. Eleven participants (24.6 ± 4.1 yrs, 68.5 ± 14.6 kg, 1.7 ± 0.1 m) were recruited from the UNLV student body and were subject to a three day adaptation protocol to allow them to choose a preferred walking speed and to familiarize themselves with such a novel task. Two consecutive practice days included a …
An Investigation Of The Testing Effect On Motor Learning, Aaron Leonard Pauls
An Investigation Of The Testing Effect On Motor Learning, Aaron Leonard Pauls
UNLV Theses, Dissertations, Professional Papers, and Capstones
Optimization of learning processes is the goal many educators strive to achieve with their students. One of the potential methods used towards optimizing this process is what’s known as the testing effect. The testing effect is the improved performance on a retention test as a result of prior testing during some period of practice. Previously, the testing effect was investigated using mostly cognitive tasks such as the learning of a number of words. In this paper, we examine the impact the testing effect has on learning the motor skill of putting. The study used a 2 x 2 mixed design, …
Daily Variability Of Body Weight And Hydration Markers In Free Living Men And Women, Lynndee Grace Summers
Daily Variability Of Body Weight And Hydration Markers In Free Living Men And Women, Lynndee Grace Summers
Graduate Theses and Dissertations
Body weight and hydration markers change greatly during strenuous exercise, especially in the heat. However, in a non-athletic population, changes in body weight and hydration markers may not be so obvious. It is important to classify the normal fluctuation of these measurements for future studies in order to delineate when an intervention results in a change outside of what can be expected during normal daily living. PURPOSE: The purpose of this study was to describe the normal fluctuations in body weight and urine hydration markers over the course of 29 days. METHODS: One-hundred two male and female participants, ranging from …
A Framework For Studying Meshfree Geometry And A Method For Explicit Boundary Determination, Joseph Bradley Alford
A Framework For Studying Meshfree Geometry And A Method For Explicit Boundary Determination, Joseph Bradley Alford
USF Tampa Graduate Theses and Dissertations
Patient-specific biomechanical analysis is an important tool used to understand the complex processes that occur in the body due to physical stimulation. Patient-specific models are generated by processing medical images; once an object from the image is identified via segmentation, a point cloud representation of the object is extracted. Generating an analysis suitable representation from the point cloud has traditionally required generating a finite element mesh, which often requires a well defined surface to accomplish. Point clouds lack a well defined geometry, meaning that the surface definition is incomplete at best. Point clouds that have been generated from images have …
Impact Of Extremely Low-Frequency Magnetic Fields On Human Postural Control, Alicia N. Allen
Impact Of Extremely Low-Frequency Magnetic Fields On Human Postural Control, Alicia N. Allen
Electronic Thesis and Dissertation Repository
The general public and workers can be exposed to high-levels of power-line frequency magnetic fields (MFs - up to 10 mT). Although such time-varying MFs have the potential to modulate human postural control, no existing studies have explored MF exposure levels that possibly trigger acute sway responses. This work evaluates time-varying MF exposure (up to 100 mT) in the extremely low frequency range (ELF – up to 300 Hz) and its effects on human postural control. Twenty-two healthy participants were each exposed to randomized, 5-second MF and electric stimulations (0, 50 and 100 mT and 1.5 mA respectively) given at …
The Use Of P3b As An Indicator Of Neurophysiologic Change From Subconcussive Impacts In Football Players, Jeffrey S. Brooks
The Use Of P3b As An Indicator Of Neurophysiologic Change From Subconcussive Impacts In Football Players, Jeffrey S. Brooks
Electronic Thesis and Dissertation Repository
There is a growing appreciation in research that subconcussive impacts may affect cognitive functioning. Canadian University football players (n=45) were separated into three groups based on their position/skill (small skilled, big skilled and big unskilled). An impact measuring device (GForceTracker) was used to record the number of impacts that each player experienced in a season. Player groups were separated into two levels of impact exposure: low and high. Players completed baseline, midseason, postseason, and follow-up neurophysiological tests (four months later) to measure P3b amplitude in response to a visual oddball paradigm, and high versus low impact subgroups for each player …
A Comparison Of The Immediate Effects Of Muscle Energy Technique And Joint Mobilizations On Posterior Shoulder Tightness In Youth Throwing Athletes, Maddox L. Reed
Theses and Dissertations
Background: Due to the extreme forces on the glenohumeral (GH) joint during the throwing motion, and the high number of repetitions that occur during overhead sports, alterations in range of motion are a common occurrence in overhead athletes, particularly baseball and softball players. The presence of limited GH motion that occurs as a result of posterior shoulder tightness can increase the risk of injury. Despite clinical evidence pointing to the use of joint mobilizations and muscle energy technique (MET) for the treatment of various pathologies, there currently is no data examining comparing the overall effectiveness of joint mobilizations and MET …
Molybdenum Disulfide-Conducting Polymer Composite Structures For Electrochemical Biosensor Applications, Hongxiang Jia
Molybdenum Disulfide-Conducting Polymer Composite Structures For Electrochemical Biosensor Applications, Hongxiang Jia
USF Tampa Graduate Theses and Dissertations
Lactic acid is widely existing in human bodies, animals and microorganisms. Recently, using biosensor to detect the concentration of lactic acid and diagnose disease have attracted great research and development interests. Nanocomposites is one of the best material used for biosensor because their wonderful conductivity, optical and electrochemical properties. In the study, MoS2 and polypyrrole (PPY) are used for the composite material electrode. To determine whether lactate oxidase (LOD) was helpful for the biosensor’s detective properties, both PPY-MoS2 film with LOD and PPY-MoS2 film without LOD are being tested. The fourier transform infrared spectroscopy (FTIR) and Raman …
The Effects Of Ice Hockey Goaltender Leg Pads On Safety And Performance, Ryan J. Frayne
The Effects Of Ice Hockey Goaltender Leg Pads On Safety And Performance, Ryan J. Frayne
Electronic Thesis and Dissertation Repository
Ice hockey goaltenders have the highest percentage of cam-type femoroacetabular impingement (FAI). The exact cause of these injuries in goaltenders remains unknown; however, it has been suggested that common goaltender movements and a goaltender’s underlying hip pathology may be contributing factors. The butterfly save technique, commonly used by goaltenders, has been linked to FAI. Simply stopping these movements would likely be detrimental to goaltender performance. Therefore, changing other aspects of goaltending, such as altering the goaltender equipment, should be considered. The overall objective of this thesis was to understand how ice hockey goaltender leg pads influence both the safety and …
Understanding Motivational Climate And Team Cohesion In Youth Sport, Annika M. Ewaldz
Understanding Motivational Climate And Team Cohesion In Youth Sport, Annika M. Ewaldz
Theses and Dissertations
The effects of both peer-created and coach-created motivational climate on team cohesion was studied in a sample of 136 youth athletes. Task-involving aspects of both peer-and coach-created motivational climates were found to be positively related to team cohesion. Coach-created ego-involving climate was negatively related to team cohesion, most significantly attraction to group-task (ATG-T) cohesion. Peer-created ego-involving motivational climate was significantly, negatively related to group integration-task (GI-T) cohesion. Peer-created motivational climate accounted for variance above and beyond the influence of coach-created motivational climate on team cohesion. The results of this study suggest that a peer-created motivational climate influences team cohesion above …
Associations Between Physical Activity, Physical Fitness, And Falls Risk In Healthy Older Individuals, Christopher Deane Vaughan
Associations Between Physical Activity, Physical Fitness, And Falls Risk In Healthy Older Individuals, Christopher Deane Vaughan
Human Movement Studies & Special Education Theses & Dissertations
Objective: The purpose of this study was to assess relationships between objectively measured physical activity, physical fitness, and the risk of falling. Methods: A total of n=29 subjects completed the study, n=15 male and n=14 female age (mean±SD)= 70± 4 and 71±3 years, respectively. In a single testing session, subjects performed pre-post evaluations of falls risk (Short-from PPA) with a 6-minute walking intervention between the assessments. The falls risk assessment included tests of balance, knee extensor strength, proprioception, reaction time, and visual contrast. The sub-maximal effort 6-minute walking task served as an indirect assessment of cardiorespiratory fitness. Subjects traversed a …
Effect Of Terminal Haptic Feedback On The Sensorimotor Control Of Visually And Tactile-Guided Grasping, Shirin Davarpanah Jazi
Effect Of Terminal Haptic Feedback On The Sensorimotor Control Of Visually And Tactile-Guided Grasping, Shirin Davarpanah Jazi
Electronic Thesis and Dissertation Repository
When grasping a physical object, the sensorimotor system is able to specify grip aperture via absolute sensory information. In contrast, grasping to a location previously occupied by (no-target pantomime-grasp) or adjacent to (spatially dissociated pantomime-grasp) an object results in the specification of grip aperture via relative sensory information. It is important to recognize that grasping a physical object and pantomime-grasping differ not only in terms of their spatial properties but also with respect to the availability of haptic feedback. Thus, the objective of this dissertation was to investigate how terminal haptic feedback influences the underlying mechanisms that support goal-directed grasping …
The Neuroprotective Effects Of Endurance Training On The Aging Brain, Katelyn Norton
The Neuroprotective Effects Of Endurance Training On The Aging Brain, Katelyn Norton
Electronic Thesis and Dissertation Repository
Dysregulation of autonomic control often develops with advancing age, favoring a chronic state of heightened sympathetic outflow with parasympathetic withdrawal. However, the mechanisms of this age-related autonomic impairment are not known and may relate to alterations in brain structure (e.g. cortical atrophy) and/or altered neural function, particularly in regions related to the cortical autonomic network, namely, the medial prefrontal cortex (MPFC), insula cortex (IC), and hippocampus (HC). Exercise exerts beneficial effects on brain structure and, in the case of cognition, neurologic function; however, how exercise affects regions of the brain related to autonomic function are not known. This thesis tested …
Indicator Amino Acid Derived Estimates Of Dietary Protein Requirement In Exercise-Trained Individuals, Arash Bandegan
Indicator Amino Acid Derived Estimates Of Dietary Protein Requirement In Exercise-Trained Individuals, Arash Bandegan
Electronic Thesis and Dissertation Repository
Despite a number of nitrogen balance (NB) studies indicating increased dietary protein needs in Endurance (ET) and strength (ST) trained athletes, the Institute of Medicine (2005) has concluded, based largely on methodological concerns, that “no additional dietary protein is suggested for healthy adults undertaking resistance or endurance exercise”. Indicator amino acid oxidation method (IAAO) has been recently used for determination of protein requirement in humans. This method is based on the concept that when one indispensable amino acid (AA) is deficient for protein synthesis, then all other AA, including the indicator, will be considered excess and oxidized. With increasing intakes …
Using An Aerial Drone To Examine Lateral Movement In Sweep Rowers, Joseph S. Munn
Using An Aerial Drone To Examine Lateral Movement In Sweep Rowers, Joseph S. Munn
Electronic Thesis and Dissertation Repository
Rowing is a sport that is performed on the water, because of this there are many challenges associated with studying rowing. The primary challenges are an inability to control the environment and limitations with the equipment that can be used to collect data on the water. In order to try and overcome some of these challenges an aerial drone fitted with a high resolution camera was used to examine an understudied element of the rowing stroke, lateral movement in sweep rowers. Oar and shoulder angles and lateral movement of the shoulders and hands were calculated and compared between five different …
Constraining Kinematics During Single-Leg Squats And Step-Ups Can Reduce Quadratus Lumborum Activation And Facilitate Gluteal Activation, Shaylyn Kowalchuk
Constraining Kinematics During Single-Leg Squats And Step-Ups Can Reduce Quadratus Lumborum Activation And Facilitate Gluteal Activation, Shaylyn Kowalchuk
Electronic Thesis and Dissertation Repository
Increased quadratus lumborum activation and decreased gluteal activation may lead to lateral pelvic drop and increased hip adduction and internal rotation during single-leg exercises. These activation patterns and motions are associated with low back pain or lower extremity injuries. The purpose of this study was to evaluate if mechanically restricting hip adduction and internal rotation of the femur affected muscle activation. Twenty female track and field athletes performed single-leg squats and step-ups, and the quadratus lumborum, gluteus medius and maximus muscles activations were measured with surface electromyography. This study tested the hypothesis that mechanically restricted exercises would decrease quadratus lumborum …
New Tools For Viscoelastic Spectral Analysis, With Application To The Mechanics Of Cells And Collagen Across Hierarchies, Behzad Babaei
New Tools For Viscoelastic Spectral Analysis, With Application To The Mechanics Of Cells And Collagen Across Hierarchies, Behzad Babaei
McKelvey School of Engineering Theses & Dissertations
Viscoelastic relaxation spectra are essential for predicting and interpreting the mechanical responses of materials and structures. For biological tissues, these spectra must usually be estimated from viscoelastic relaxation tests. Interpreting viscoelastic relaxation tests is challenging because the inverse problem is expensive computationally. We present here (1) an efficient algorithm and (2) a quasi-linear model that enable rapid identification of the viscoelastic relaxation spectra of both linear and nonlinear materials. We then apply these methods to develop fundamental insight into the mechanics of collagenous and fibrotic tissues.
The first algorithm, which we term the discrete spectral approach, is fast enough to …
Effects Of Television Viewing On Psycho-Physiological And Behavioral Outcomes, Brittany Star Overstreet
Effects Of Television Viewing On Psycho-Physiological And Behavioral Outcomes, Brittany Star Overstreet
Doctoral Dissertations
Purpose: To determine the effects of television viewing during exercise on 1) preference for exercise and 2) treadmill walking time. Methods: Twenty-five insufficiently active adults (mean±standard deviation; age: 46±12 years; Body mass index: 31±5 kilogram/squared meter (kg/m2) were recruited for this study. In part 1, participants performed three randomized 1/3-mile walking bouts at an intensity equivalent to 70% of their oxygen consumption at ventilatory threshold (VO2-at-VT). During these exercise bouts, individuals viewed 1) their favorite television program (FavTV), 2) a standardized nature program (NatTV) or 3) no-TV program (NoTV). A behavioral choice paradigm was used to …
Improving Power Output In Older Adults Utilizing Plyometrics In An Alterg Treadmill, Tyler Dobbs
Improving Power Output In Older Adults Utilizing Plyometrics In An Alterg Treadmill, Tyler Dobbs
Boise State University Theses and Dissertations
The purpose of this study was to compare functional strength and power output in older adults who completed plyometric training in an AlterG treadmill compared to older adults who completed traditional resistance training. Methods: Twenty-three older adults were randomized to a strength (SG), plyometric (PG), or control group (CG). SG and PG exercised 3x/week for 8 weeks while CG performed no exercise. Measures of a timed sit-to-stand, stair climb, estimated maximal muscular strength, and isokinetic power were taken at pre and post testing. A repeated measures 2x3 (time x group) ANOVA was used to determine if there was a significant …
Identifying Gait Deficits In Stroke Patients Using Inertial Sensors, Lauren Benson
Identifying Gait Deficits In Stroke Patients Using Inertial Sensors, Lauren Benson
Theses and Dissertations
Falls remain a significant problem for stroke patients. Tripping, the main cause of falls, occurs when there is insufficient clearance between the foot and ground. Based on an individual’s gait deficits, different joint angles and coordination patterns are necessary to achieve adequate foot clearance during walking. However, gait deficits are typically only quantified in a research or clinical setting, and it would be helpful to use wearable devices – such as accelerometers – to quantify gait disorders in real-world situations. Therefore, the objective of this project was to understand gait characteristics that influence the risk of tripping, and to detect …
The Effects Of Military Style Ruck Marching On Lower Extremity Loading, Daniel N. Poel
The Effects Of Military Style Ruck Marching On Lower Extremity Loading, Daniel N. Poel
Theses and Dissertations
Load carriage while performing prolonged marches may play a role in military overuse injuries. It is known that both external load carriage and muscular fatigue can contribute to increases in ground reaction forces and loading rate and play a role in stress injuries. The purpose of this study is to determine whether or not a prolonged military style ruck march will cause changes in vertical ground reaction force and loading rate. 15 healthy members of the Army ROTC and Army National Guard performed vertical jumps, had ankle dorsiflexion, plantarflexion, inversion and eversion strength measured, and walked across a force plate …