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Articles 1 - 30 of 71
Full-Text Articles in Kinesiology
Dexterous Manipulation Capabilities Are Associated With Change In Discharge Rate Properties Of Motor Neurons With Age, Mukta N. Joshi
Dexterous Manipulation Capabilities Are Associated With Change In Discharge Rate Properties Of Motor Neurons With Age, Mukta N. Joshi
Theses and Dissertations
Aging is accompanied by declines in manual dexterity and fine motor control. The purpose of this research was to compare hand motor control in young and older adults and examine the neuromuscular mechanisms responsible for enabling these interactions. We test force variability during isometric and dynamic contractions, manual dexterity and track motor unit activity to identify the neuromuscular mechanisms responsible for changes in dexterity with age. 26 older adults (66-86 years) and 28 young adults (19 – 38 years) participated in the study. Research participants performed force matching tasks during index finger abduction, precision pinch, static pressing and hybrid force/ …
Accuracy And Precision Of Wearable Camera Media Annotations To Estimate Dimensions Of Physical Activity And Sedentary Behavior, Julian Martinez
Accuracy And Precision Of Wearable Camera Media Annotations To Estimate Dimensions Of Physical Activity And Sedentary Behavior, Julian Martinez
Theses and Dissertations
Physical activity (PA) is a complex behavior to measure given its sporadic nature and its all-encompassing definition as bodily movement produced by skeletal muscles that result in increased energy expenditure. Sedentary behavior (SB) is another complex health behavior to measure as it is more exactly defined as sitting, reclining, or lying while having an energy expenditure ≤ 1.5 metabolic equivalents (METs). For both PA and SB, it is important to measure the dimensions of frequency, intensity, duration and type of activity being performed when associating the volume of PA and SB with different health outcomes. However, commonly used measurement tools …
The Impact Of A Body Self-Compassion Program On Body Image And Experiences Of Exercise, Gretchen Paulson
The Impact Of A Body Self-Compassion Program On Body Image And Experiences Of Exercise, Gretchen Paulson
Theses and Dissertations
Body image concerns are a prevalent and pervasive issue among young adult women and are associated with a host of physical and psychological consequences including disordered eating, depression, and anxiety. Body image concerns play a role in physical activity and exercise behavior, where negative body image is related to lower levels of exercise engagement. Self-compassion is a way of relating to oneself with kindness and understanding, particularly in the presence of suffering or feelings of inadequacy. Self-compassion consists of three interrelated components: self-kindness, common humanity, and mindfulness, and has demonstrated effectiveness in reducing body image concerns, while fostering positive body …
Using Music To Modify Step-Rate And Running Biomechanics In Healthy Runners, Erin Marie Lally
Using Music To Modify Step-Rate And Running Biomechanics In Healthy Runners, Erin Marie Lally
Theses and Dissertations
Context: Running-related injury (RRI) is a significant public health issue that may be caused by injurious running biomechanics. Increasing step-rate (SR) using gait retraining may prevent and treat RRI. The Optimizing Performance Through Intrinsic Motivation and Attention for Learning (OPTIMAL) theory indicates enhanced expectancies, autonomy, and external focus of attention will optimize motor learning. Music has been shown to create enhanced expectancies, can provide incidental choices (autonomy), directs attention externally, and may increase compliance. No studies have investigated if music can be used to alter SR and running biomechanics or strategies that may improve compliance to gait retraining. Objective: The …
The Effects Of Task Complexity On Knee Mechanics And Joint Coordination Variability During A Side-Step Cutting Task, Carter Michael Schmitz
The Effects Of Task Complexity On Knee Mechanics And Joint Coordination Variability During A Side-Step Cutting Task, Carter Michael Schmitz
Theses and Dissertations
Injury to the anterior cruciate ligament (ACL) is a very common and debilitating injury suffered by athletes of all ages, genders, and abilities. Practitioners attempt to minimize risks by implementing ACL prevention programs designed to physically prepare athletes for the demands of sport, however, the success of these programs is very inconsistent. The majority of past ACL prevention programs prioritize constrained run and cut activities, the removal of motor variability - attempting to “idealize” mechanics - and limited task complexity. Due to the inherent complexities that exist within sport, it is possible that more task complexity and motor variability is …
Exploring The Perceived Psychosocial Experiences Of Recreational Runners With Patellofemoral Pain: A Grounded Theory Approach, Kenneth Ildefonso
Exploring The Perceived Psychosocial Experiences Of Recreational Runners With Patellofemoral Pain: A Grounded Theory Approach, Kenneth Ildefonso
Theses and Dissertations
Patellofemoral pain (PFP) is a specific type of patellar or retropatellar pain aggravated by at least one physical activity that loads the patellofemoral joint during weight bearing on a flexed knee such as running (Crossley et al., 2016). Previous PFP research has highlighted the importance of psychosocial variables among PFP populations including recreational runners (Vicenzino et al., 2022). Upon reviewing the existing literature, much of it appears to be atheoretical and lack construct clarity. The purpose of this dissertation was to explore the perceived psychosocial experiences of recreational runners with PFP. This dissertation aimed to (1) document recreational runners’ perceived …
Estimating Energy Cost Of Physical Activities From Video Using 3d-Cnn Networks, Pragya Shrestha Chansi
Estimating Energy Cost Of Physical Activities From Video Using 3d-Cnn Networks, Pragya Shrestha Chansi
Theses and Dissertations
This research proposes a machine learning model that can estimate the energy cost of physical activities from video input. Currently, wearable sensors are commonly used for this purpose, but they have limitations in terms of practicality and accuracy. A deep learning model using three dimensional convolutional neural network (3D-CNN) architecture was used to process the video data and predict the energy cost in terms of metabolic equivalents (METs). The proposed model was evaluated on a dataset of physical activity videos and achieved an average accuracy of 71% on energy category prediction task and an root mean squared error (RMSE) of …
Educational Environments And Children's Physical Activity And Sedentary Behaviors, Nathan R. Tokarek
Educational Environments And Children's Physical Activity And Sedentary Behaviors, Nathan R. Tokarek
Theses and Dissertations
Children and adolescents spend the majority of their day engaged in sedentary behaviors (SB), while also not meeting physical activity (PA) recommendations. The failure to develop and maintain health enhancing behaviors from a young age may impact an individual throughout their life. With children and adolescents spending a large proportion of their waking hours in a school setting, the educational environment presents an opportunity in which children and adolescents’ PA and SB can be positively influenced. Therefore, the purpose of this dissertation was to explore how children and adolescent’s school time PA and SB are associated with the educational setting, …
The Effects Of Cheerleading Surfaces On Landing Characteristics During Vertical And Flip Landings, Anthony Vu Nguyen
The Effects Of Cheerleading Surfaces On Landing Characteristics During Vertical And Flip Landings, Anthony Vu Nguyen
Theses and Dissertations
Lateral ankle sprains are common injuries in cheerleading and typically occurring during tumbling. The landing surface can impact injury risk by modulating loading parameters and risky joint positions. Most surface-landing studies have used vertical landing tasks to study acrobatic populations, and few studies have compared vertical and flipping tasks. Therefore, the purpose of this study was to compare the effects of two cheerleading surfaces between vertical drop landing and flip landing tasks. Doing so explained surface characteristic influences on landing and the validity of using vertical landing tasks to represent acrobatic sports. Twelve collegiate cheerleaders (7 females, 5 males; age: …
Development Of An Assessment Of Recovery Activities For Athletes, Carly Wahl
Development Of An Assessment Of Recovery Activities For Athletes, Carly Wahl
Theses and Dissertations
To optimize the performance and health of elite athletes, there has been an increase in the development of athlete monitoring systems to measure if athletes perceive themselves to be adequately recovered (i.e., counterbalancing the effects of stressors after a demanding activity). While these monitoring systems have been instrumental in describing athlete recovery states, little research has been conducted to establish why and how athletes engage in recovery behaviors or to identify barriers that prevent athletes from initiating the recovery process. As such, the purpose of the current study was to develop and evaluate the psychometric properties of an assessment that …
Full-Body Biomechanical Characterization Of Children With Hypermobile Ehlers-Danlos Syndrome During Gait And Activities Of Daily Living, Anahita Alahmoradiqashqai
Full-Body Biomechanical Characterization Of Children With Hypermobile Ehlers-Danlos Syndrome During Gait And Activities Of Daily Living, Anahita Alahmoradiqashqai
Theses and Dissertations
Hypermobile Ehlers-Danlos syndrome (hEDS) is an inherited connective tissue disorder, often under-diagnosed, and presenting with frequent chronic pain and severe musculoskeletal symptoms that can drastically reduce the quality of life during one’s life span. While there are limited quantitative approaches in the literature on adult movements, the biomechanics of movements during activities of daily living (ADLs) in children have not been investigated comprehensively. Therefore, the primary purpose of this dissertation was to characterize the biomechanics of the musculoskeletal system and investigate the biomechanics of hEDS by quantifying joint dynamics and muscle activations during ADLs and gait in the pediatric population. …
Effects Of Seat And Axle Position On Pain, Pathology, And Independence In Pediatric Manual Wheelchair Users With Spinal Cord Injury, Hannah Frank
Theses and Dissertations
Manual wheelchair (MWC) users with spinal cord injury (SCI) rely heavily on their upperextremities to complete daily occupations. Due to repetitive shoulder use during wheelchair mobility and propulsion, MWC users are at greater risk of shoulder pain and shoulder pathology, and thus decreased independence, and lower quality of life. The relative fit of the wheelchair and its parameters are critical and can further impact the user’s propulsion biomechanics. Parameters such as seat angle and axle position may put the user in detrimental shoulder positions for longer periods of time, impacting health outcomes even more. Although the effects of wheelchair setup …
The Use Of A Biopsychosocial Framework In Evaluating And Treating Patellofemoral Pain, Jennifer Thorpe
The Use Of A Biopsychosocial Framework In Evaluating And Treating Patellofemoral Pain, Jennifer Thorpe
Theses and Dissertations
Patellofemoral pain (PFP) is a chronic pain condition of the knee that afflicts approximately 25% of the population, and may lead to long-term complaints of pain and dysfunction. In the current literature, PFP is primarily studied using the framework of the pathomechanical model of biomechanical and muscular factors that increase patellofemoral joint loading. However, PFP may be better understood examining it through the Biopsychosocial Model of Sport Injury Rehabilitation (Brewer et al., 2002) as a conceptual framework to explore how injury characteristics, sociodemographic factors, and intermediate biopsychosocial outcomes may impact a patient’s perceptions of pain and function. These relationships may …
Central Sensitization, Muscle Function, And Knee Kinematics In Females With Patellofemoral Pain, Kemery Jean Sigmund
Central Sensitization, Muscle Function, And Knee Kinematics In Females With Patellofemoral Pain, Kemery Jean Sigmund
Theses and Dissertations
Context: Females with patellofemoral pain (PFP) are at higher risk, have higher rates, and experience worse long-term outcomes than males. Structural and functional changes have been observed in pain networks and neuromuscular systems in individuals with PFP. Central sensitization describes dysfunctional pain modulation which could lead to altered neuromuscular control. Evidence examining relationships between central sensitization and muscle function in PFP is lacking.
Objective: The purpose of this study is to determine whether females with PFP exhibit signs of central sensitization compared to pain-free females. Then, after grouping each individual based on her quantitative sensory test results into a centrally …
Upper Extremity Kinematics And Pain Outcomes During Activities Of Daily Living In Pediatric Hypermobile Ehlers-Danlos Syndrome, Olivia Yanez Wilwert
Upper Extremity Kinematics And Pain Outcomes During Activities Of Daily Living In Pediatric Hypermobile Ehlers-Danlos Syndrome, Olivia Yanez Wilwert
Theses and Dissertations
Ehlers-Danlos syndrome (EDS) is a group of heritable connective tissue disorders, consisting of thirteen different subtypes. Among the thirteen, Hypermobile Ehlers Danlos Syndrome (hEDS) is the most common. Individuals with this condition present with frequent joint instability that results in ongoing subluxations and dislocations. Secondary diagnoses of this condition include chronic pain, Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), Major Depressive Disorder (MDD), and Generalized Anxiety Disorder (GAD). The diagnostic process of hEDS is convoluted by the lack of a genetic identifier (Malfait et al., 2017). Individuals with hEDS are often not diagnosed until later in adulthood, leaving their adolescent life full …
Use Of Wearable Technology To Detect And Alter Subtle Gait Asymmetries Following Anterior Cruciate Ligament Reconstruction, Alexander Matthew Morgan
Use Of Wearable Technology To Detect And Alter Subtle Gait Asymmetries Following Anterior Cruciate Ligament Reconstruction, Alexander Matthew Morgan
Theses and Dissertations
Knee osteoarthritis is a significant problem post-anterior cruciate ligament (ACL) reconstruction. Knee osteoarthritis can develop due to subtle changes in knee mechanics that affect loading on knee joint cartilage. Gait deficits during the loading phase have been observed up to four years post-surgery. However, changes in peak shank angular velocity have not been established long-term post-surgery. Peak shank angular velocity could be increased via an inertial measurement unit (IMU) based-biofeedback protocol to ultimately improve knee mechanics. Therefore, the objective of this project was to understand gait characteristics one to four years post-ACL reconstruction and to examine the effect of an …
The Effect Of Kinesiology Tape Application Duration On Endurance Of Knee During An Isotonic Fatiguing Flexion/Extension Exercise, En Yi Wu
Theses and Dissertations
Kinesiology Tape (KT) is an elastic athletic tape and is popular among athletes as it was claimed that it can to be worn for several days and is capable of preventing injuries, improving rehabilitation processes, improving muscle oxygenation levels, and enhancing muscle performance. The goal of this study was to determine if there was any potential enhancing effect of KT on joint endurance in healthy subjects, in particular with respect to time to fatigue (TTF), muscle oxygenation, and muscle activity in fatiguing knee flexion/extension exercise across sessions.
Fourteen healthy male subjects with no previous history of knee injury participated in …
Eye Movements And Attention Are Related To Impaired Hand Motor Control In Older Adults, Brittany Heintz Walters
Eye Movements And Attention Are Related To Impaired Hand Motor Control In Older Adults, Brittany Heintz Walters
Theses and Dissertations
Visual information is critical for many goal-directed movements and changes in visual information influence hand motor performance in older adults. Knowledge of eye movements during hand motor tasks would provide greater insight into impaired hand function in older adults. This dissertation examined age-related changes in eye movements and the association with hand motor impairments in older adults. Given that attention plays a role in motor performance and declines with age, the relationship between attentional processes and hand motor control was also assessed. A total of 23 young (age 20 – 38) and 28 older (age 65 – 90) adults were …
Prescribing Vigorous Intensity Exercise To Older Adults, Taylor Rowley
Prescribing Vigorous Intensity Exercise To Older Adults, Taylor Rowley
Theses and Dissertations
ABSTRACT
PRESCRIBING VIGOROUS INTENSITY EXERCISE TO OLDER ADULTS
by
Taylor Rowley
The University of Wisconsin-Milwaukee, 2020
Under the Supervision of Professor Scott Strath, PhD
As the older adult segment of society grow, rates of chronic disease and poor fitness continue to climb. Physical activity (PA) and exercise are effective methods to offset incidence of disease and improve physical fitness. However, despite these known benefits, older adults exhibit low rates of PA engagement. Barriers to PA that are specific to older adults include lack of knowledge and perceived lack of time. Interventions targeting older adults and addressing these barriers by way …
Transition Step Mechanics: How Influential Are Age And Fall History?, Emily Elizabeth Gerstle
Transition Step Mechanics: How Influential Are Age And Fall History?, Emily Elizabeth Gerstle
Theses and Dissertations
The purpose of this dissertation was to identify modifiable lower extremity kinematic and neuromuscular factors associated with step clearance and foot placement during transition step negotiation in older adult females with a history of falling. Specifically a full understanding of the contributions of bilateral joints of the hip, knee, and ankle during step clearance and landing was investigated (Chapter 2). Additionally to further understand how the task is accomplished, we examined the neuromuscular demands required to perform the previously mentioned kinematics (Chapter 3). Finally, to expand upon the knowledge of the multi-segment foot, the kinematics of the distal foot were …
Remote Concussion History Does Not Affect Visually-Guided Reaching In Young Adult Females, Christopher James Fueger, Lauren E. Sergio, Sabine Heuer, Labina Petrovska, Wendy E. Huddleston
Remote Concussion History Does Not Affect Visually-Guided Reaching In Young Adult Females, Christopher James Fueger, Lauren E. Sergio, Sabine Heuer, Labina Petrovska, Wendy E. Huddleston
Kinesiology Faculty Articles
Aim: We examined the long-term effects of concussions in young adult females on visuomotor behavior during a visually-guided reaching task of various complexities. Materials & methods: 20 females with a history of longer than 6 months since a concussion and 20 healthy females quickly and accurately performed a delayed reach to a previously cued target. Results: As both cognitive and motor load increased, task performance decreased for both groups (p < 0.05). However, contrary to our primary hypothesis, no differences in task performance were found between the two experimental groups (p > 0.05). Conclusion: The young adult females with a remote history of concussion demonstrated no deficits in visuomotor behavior on an attention-mediated reaching task as compared with control participants.
Lay abstract: …
Sexual Dimorphism And The Shape Of The Proximal Tibia In A Radiographic Sample, Emily Eiseman
Sexual Dimorphism And The Shape Of The Proximal Tibia In A Radiographic Sample, Emily Eiseman
Theses and Dissertations
SEXUAL DIMORPHISM AND THE SHAPE OF THE PROXIMAL TIBIA IN A RADIOGRAPHIC SAMPLE
This study investigates the use of radiographs to determine sexual dimorphism in the shape of the tibia. The goal of the research was to identify a small set of markers that would allow researchers to efficiently and accurately determine a person’s sex from a radiograph of the proximal tibia.
The sample consisted of radiographs including 75 females and 46 males ranging in age from 21 to 81. Measurements were taken on 27 points around the area of the knee including the tibia, patella, and femur. The measurements …
Characterizing The Material Properties Of Abdominal Organs, Blake Allen Johnson
Characterizing The Material Properties Of Abdominal Organs, Blake Allen Johnson
Theses and Dissertations
Understanding the behavior of abdominal organs under load will greatly improve several fields involving injury biomechanics. In order to determine the behavior of abdominal organs under load and be able to predict the response, the mechanical properties need to be properly characterized. The characterization of these properties will provide researchers the ability to create finite element models that will provide a better understanding of the mechanism of injury resulting from traumatic events.
Finite element models of today, that simulate traumatic injuries, lack properly characterized material properties. The current body of literature contains a large range of material property values which …
Lack Of Generalization Between Explicit And Implicit Visuomotor Learning, Jinsung Wang, Shancheng Bao, Grant Tays
Lack Of Generalization Between Explicit And Implicit Visuomotor Learning, Jinsung Wang, Shancheng Bao, Grant Tays
Kinesiology Faculty Articles
Visuomotor adaptation has been thought to occur implicitly, although recent findings suggest that it involves both explicit and implicit processes. Here, we investigated generalization between an explicit condition, in which subjects reached toward imaginary targets under a veridical visuomotor condition, and an implicit condition, in which subjects reached toward visual targets under a 30-degree counterclockwise rotation condition. In experiment 1, two groups of healthy young adults first experienced either the explicit or the implicit condition, then the other condition. The third group experienced the explicit, then the implicit condition with an instruction that the same cognitive strategy could be used …
Multi-Tap Extended Kalman Filter For A Periodic Waveform With Uncertain Frequency And Waveform Shape, And Data Dropouts, Justin Saboury
Multi-Tap Extended Kalman Filter For A Periodic Waveform With Uncertain Frequency And Waveform Shape, And Data Dropouts, Justin Saboury
Theses and Dissertations
Gait analysis presents the challenge of detecting a periodic waveform in the presence of time varying frequency, amplitude, DC offset, and waveform shape, with acquisition gaps from partial occlusions. The combination of all of these components presents a formidable challenge. The Extended Kalman Filter for this system model has six states, which makes it weakly identifiable within the standard Extended Kalman Filter network. In this work, a novel robust Extended Kalman Filter-based approach is presented and evaluated for clinical use in gait analysis. The novel aspect of the proposed method is that at each sample, the present and several past …
Quantitative Evaluation Of Geared Manual Wheelchair Mobility In Individuals With Spinal Cord Injury: An Integrative Approach, Omid Jahanian
Quantitative Evaluation Of Geared Manual Wheelchair Mobility In Individuals With Spinal Cord Injury: An Integrative Approach, Omid Jahanian
Theses and Dissertations
The purpose of this dissertation is to quantify the effects of using geared wheelchair wheels on upper extremity biomechanics and energy expenditure during functional mobility tasks in individuals with spinal cord injury (SCI). The effects of using geared wheels on hand-rim biomechanics, glenohumeral joint dynamics, and shoulder muscle activity were investigated during manual wheelchair propulsion over tiled and carpeted level-floors and up a ramp in low gear (1.5:1) and standard gear (1:1) conditions. The results for the hand-rim biomechanics indicated that regardless of the terrain, using the geared wheels in the low gear condition significantly decreased the propulsion speed, stroke …
Do Stand-Biased Desks In The Classroom Change School-Time Activity And Sedentary Behavior?, Ann M. Swartz, Nathan Tokarek, Krista M. Lisdahl, Hotaka Maeda, Scott J. Strath, Chi C. Cho
Do Stand-Biased Desks In The Classroom Change School-Time Activity And Sedentary Behavior?, Ann M. Swartz, Nathan Tokarek, Krista M. Lisdahl, Hotaka Maeda, Scott J. Strath, Chi C. Cho
Kinesiology Faculty Articles
The purpose of this study was to determine the effect of stand-biased desks on the physical activity and sedentary behavior of third, fourth and sixth grade students across the school year. Methods: This within classroom crossover design study used teacher-determined allocation for seating within each classroom. Half of the students used a stand-biased desk and half used a sitting desk. Five-day hip-worn accelerometer assessments were completed at baseline and at the end of each nine-week intervention period. A mixed effects model was used to determine the differences in the percentage of time spent active and sedentary. Results: A …
Investigating The Hip And Trunk Kinematic And Strength Differences Between Those With A History Of Exertional Medial Tibial Pain And Healthy Controls, Allison Hocking
Investigating The Hip And Trunk Kinematic And Strength Differences Between Those With A History Of Exertional Medial Tibial Pain And Healthy Controls, Allison Hocking
Theses and Dissertations
Introduction: Exertional medial tibial pain (EMTP) has been shown to be one of the leading injuries in females who have weakened hip strength. Increased trunk and hip kinematic excursion and decreased hip external rotation and hip abductor strength are related to injury in the athletic population but there is a lack of research in the role of hip strength in the development of exertional medial tibial pain in competitive female runners. Purpose: Therefore, the purpose of this study is to investigate differences in hip strength, hip kinematics, and trunk kinematics between those with a previous history of exertional medial tibial …
Exploring Positive Body Image And Motives For Exercise As Predictors Of Intuitive Exercise And Exercise Behavior Among Women, Natalie Michelle Ramsey
Exploring Positive Body Image And Motives For Exercise As Predictors Of Intuitive Exercise And Exercise Behavior Among Women, Natalie Michelle Ramsey
Theses and Dissertations
Purpose: To explore three facets of positive body image and motives for exercise as predictors of women’s intuitive exercise and exercise behavior.
Scientific significance: Positive body image has been associated with health-promoting behaviors such as utilizing sun protection techniques and intuitive eating. Despite these findings and the known benefits of exercise, there are no known published studies exploring if positive body image and exercise motivation predict intuitive exercise and exercise behavior in women. Understanding these relationships could facilitate the design of interventions targeting improvements in both psychological well-being and exercise behavior.
Methodology: This cross-sectional study included 391 women (18-91 years; …
Replacing Sedentary Behavior With A Light Intensity Physical Activity In The Homes Of Older Adults, Nicholas Louis Lerma
Replacing Sedentary Behavior With A Light Intensity Physical Activity In The Homes Of Older Adults, Nicholas Louis Lerma
Theses and Dissertations
Aging is positively correlated with time spent in sedentary behavior (SB), which has been found to be linked to premature mortality, cardiovascular disease risk, and functional limitations. Moderate-to-vigorous-intensity physical activity (MVPA) is a potent stimulus for preventing and improving functional limitations in older adults, but less than 17% of the older adult population meets the recommended PA guidelines. While increased time spent in SB is detrimental to health in all, the impact among those that are physically inactive appear to be most pronounced. Recent evidence suggests increasing light-intensity physical activity (LPA) in these populations may provide health benefits and could …