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Articles 1 - 17 of 17
Full-Text Articles in Kinesiology
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 …
An Investigation Of Upper Extremity Motor Impairments In Children Diagnosed With Autism Spectrum Disorder: Motor Planning Vs Motor Execution, Patrick Anthony Cereceres
An Investigation Of Upper Extremity Motor Impairments In Children Diagnosed With Autism Spectrum Disorder: Motor Planning Vs Motor Execution, Patrick Anthony Cereceres
Open Access Theses & Dissertations
Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder typically diagnosedwhen a child displays social and communication impairments, repetitive behaviors, and rhythmic movements like hand flapping. This disorder is unique because of the high variability of symptoms displayed between each individual who is diagnosed. Because of this, no neurological or physiological test exists to diagnose a child with ASD. Current diagnostic tests are various forms of interviews or observations which an experienced clinician must administer. While these tests have been instrumental in diagnosing children with ASD, many go undiagnosed, which can be detrimental as they transition into adulthood. Current literature indicates …
The Role Of California Sea Lion (Zalophus Californianus) Hindflippers As Aquatic Control Surfaces For Maneuverability, Ariel M. Leahy, Frank E. Fish, Sarah J. Kerr, Jenifer A. Zeligs, Stefani Skrovan, Kaitlyn L. Cardenas, Megan C. Leftwich
The Role Of California Sea Lion (Zalophus Californianus) Hindflippers As Aquatic Control Surfaces For Maneuverability, Ariel M. Leahy, Frank E. Fish, Sarah J. Kerr, Jenifer A. Zeligs, Stefani Skrovan, Kaitlyn L. Cardenas, Megan C. Leftwich
Biology Faculty Publications
California sea lions (Zalophus californianus) are a highly maneuverable species of marine mammal. During uninterrupted, rectilinear swimming, sea lions oscillate their foreflippers to propel themselves forward without aid from the collapsed hindfiippers, which are passively trailed. During maneuvers such as turning and leaping (porpoising), the hindfiippers are spread into a delta-wing configuration. There is little information defining the role of otarrid hindfiippers as aquatic control surfaces. To examine Z. califomianus hindflippers during maneuvering, trained sea lions were video recorded underwater through viewing windows performing porpoising behaviors and banking turns. Porpoising by a trained sea lion was compared with sea lions …
Ergonomic Evaluation Of Percentile Height Differences During Automorive Assembly Tasks – A Focus On Joint Angle Kinematics, Joe Kagumba
Electronic Theses and Dissertations
The purpose of this study was to assess the effects of anthropometric height on movement variability during seven simulated automotive assembly tasks. Twenty participants completed seven simulated automotive assembly tasks commonly found in industry. The 20 participants were evenly distributed into one of four groups based on their height. For each group, and during each task, the following seven time-series joint angle profiles were assessed: Elbow Flexion/Extension (Flex/Ext), Shoulder Abduction/Adduction (Abd/Add), Shoulder Forward/Backwards movement (For/Back), Trunk Flex/Ext, Trunk Lateral bending (Lat), Hip Flex/Ext and Knee Flex/Ext. To compare between groups, Statistical Parametric Mapping (SPM) was used to assess group differences …
Use Of Pressure-Measuring Insoles To Characterize Gait Parameters In Simulated Reduced-Gravity Conditions, Christian Ison, Connor Neilsen, Jessica Deberardinis, Mohamed B. Trabia, Janet S. Dufek
Use Of Pressure-Measuring Insoles To Characterize Gait Parameters In Simulated Reduced-Gravity Conditions, Christian Ison, Connor Neilsen, Jessica Deberardinis, Mohamed B. Trabia, Janet S. Dufek
Mechanical Engineering Faculty Research
Prior researchers have observed the effect of simulated reduced-gravity exercise. However, the extent to which lower-body positive-pressure treadmill (LBPPT) walking alters kinematic gait characteristics is not well understood. The purpose of the study was to investigate the effect of LBPPT walking on selected gait parameters in simulated reduced-gravity conditions. Twenty-nine college-aged volunteers participated in this cross-sectional study. Participants wore pressure-measuring insoles (Medilogic GmBH, Schönefeld, Germany) and completed three 3.5-min walking trials on the LBPPT (AlterG, Inc., Fremont, CA, USA) at 100% (normal gravity) as well as reduced-gravity conditions of 40% and 20% body weight (BW). The resulting insole data were …
The Effects Of Maturation On Acl Loading, Muscle Coordination, And Metabolic Cost In Adolescent Female Soccer Players, Lauren E. Schroeder
The Effects Of Maturation On Acl Loading, Muscle Coordination, And Metabolic Cost In Adolescent Female Soccer Players, Lauren E. Schroeder
Doctoral Dissertations
Anterior cruciate ligament (ACL) injuries remain a significant, season-ending injury in youth soccer, with young female athletes exhibiting higher incidence rates compared to young male athletes. ACL injury rates increase with older ages, with female soccer players 15 years or older being at an almost twofold increased rate of injury compared to young female soccer players. Several biomechanical and neuromuscular changes occur during the maturation process, becoming more prevalent in young females, that can place them at an increased risk for ACL injury. These biomechanical and neuromuscular changes can affect how efficient young females are when completing high-risk, dynamic tasks …
The Effects Of The Dual-Tasking: Walking While Texting On Slip Recovery Mechanics, Ileana Abril Jarquin
The Effects Of The Dual-Tasking: Walking While Texting On Slip Recovery Mechanics, Ileana Abril Jarquin
Open Access Theses & Dissertations
Introduction: The number of induced falls has increased exponentially over the last decade. Previous studies have determined that the cognitive demands of texting affect the processing of cognitive and motor tasks.Research question: What effect does the dual-tasking of texting and walking has on slip recovery mechanics? Methods: Three-dimensional kinematic data were collected while 20 participants between the ages of 18 and 30 years three different conditions; 1) baseline, 2) walking + slip perturbation, and 3) texting and walking + slip perturbation. Results: Walking speed, numbers of falls, and recovery time from the slip were not affected by the texting dual-task. …
Asymmetries In Dynamic Valgus Index After Anterior Cruciate Ligament Reconstruction: A Proof-Of-Concept Study, Kai Yu Ho, Andrew Murata
Asymmetries In Dynamic Valgus Index After Anterior Cruciate Ligament Reconstruction: A Proof-Of-Concept Study, Kai Yu Ho, Andrew Murata
Physical Therapy Faculty Publications
Individuals with anterior cruciate ligament reconstruction (ACLR) are at a higher risk for subsequent anterior cruciate ligament (ACL) tears. Risk factors for ACL injuries likely involve a combination of anatomical, biomechanical, and neuromuscular factors. Dynamic knee valgus has been indicated as a possible biomechanical factor for future ACL injuries. Given that knee valgus is often accompanied by contralateral pelvic drop during single-leg activities, a dynamic valgus index (DVI) that quantifies combined kinematics of the knee and hip in the frontal plane has recently been developed. As the premise of asymmetrical DVI between limbs in the ACLR population has not been …
These Fish Were Made For Walking: Morphology And Walking Kinematics In Balitorid Loaches, Callie Hendricks Crawford
These Fish Were Made For Walking: Morphology And Walking Kinematics In Balitorid Loaches, Callie Hendricks Crawford
Dissertations
Terrestrial excursions have been observed in multiple lineages of marine and freshwater fishes. These ventures into the terrestrial environment may be used when fish are searching out new habitat during drought, escaping predation, laying eggs, or seeking food sources. The physiological demands for life under water and on land are vastly different and require different functional adaptations. Fish with terrestrial excursions must be capable of dealing with the stresses of both aquatic and terrestrial environments for varying periods of time. To deal with these stresses, amphibious fishes exhibit many morphological and behavioral adaptations. These adaptations have led to a range …
Subject-Specific Musculoskeletal Modeling Of Hip Dysplasia Biomechanics, Ke Song
Subject-Specific Musculoskeletal Modeling Of Hip Dysplasia Biomechanics, Ke Song
McKelvey School of Engineering Theses & Dissertations
Developmental dysplasia of the hip (DDH) is characterized by abnormal bony anatomy, causes pain and functional limitations, and is a prominent risk factor for premature hip osteoarthritis. Although the pathology of DDH is believed to be mechanically-induced, little is known about how DDH anatomy alters hip biomechanics during activities of daily living, partly due to the difficulties with measuring hip muscle and joint forces. Musculoskeletal models (MSMs) are useful for dynamic simulations of joint mechanics, but the reliability of MSMs for DDH research is limited by an accurate model representation of the unique hip anatomy. To address such challenges, this …
Musculoskeletal Modeling Analysis Of Knee Joint Loading During Uphill And Downhill Waling In Patients With Total Knee Replacement, Tanner A. Thorsen
Musculoskeletal Modeling Analysis Of Knee Joint Loading During Uphill And Downhill Waling In Patients With Total Knee Replacement, Tanner A. Thorsen
Doctoral Dissertations
The purposes of these studies were to determine differences in total (TCF), medial (MCF) and lateral (LCF) tibiofemoral compartment compressive forces and related muscle forces between limbs (replaced, non-replaced, and control), and different slopes during uphill [0° (level), 5°, 10°], and downhill [0° (level), 5° 10°] using statistical parametric mapping (SPM). Static optimization was used to determine muscle and compressive forces for 9 patients with total knee arthroplasty (TKA) and 9 control participants during walking trials. Total , loading-response, and push-off TCF impulse were calculated. A 3×3 [Limb (replaced, non-replaced, control] × Slope (0°, 10°, 15°)] SPM[F] repeated measures ANOVA …
Swimmers’ Upper Trapezius Activation During Shoulder Abduction Compared To Non-Overhead Athletes, Kendra Graham
Swimmers’ Upper Trapezius Activation During Shoulder Abduction Compared To Non-Overhead Athletes, Kendra Graham
Senior Honors Projects
Overhead sports such as baseball, tennis, volleyball, softball and swimming are known to cause rotator cuff imbalances and injuries. These injuries are typically caused by the repeated use of “throwing motion,” where the humerus is externally rotated and shoulder abducted and elevated. Previous research has shown that the function of the upper trapezius muscle in overhead athletes is likely to have improper activation (timing, magnitude) during various shoulder motions and/or activities of daily living. Swimmers are especially susceptible to this improper activation due to the use of their upper limbs in a repeated throwing motion. The added resistance of the …
Effects Of Different Stretching Modalities On The Antagonist And Agonist Muscles On Isokinetic Strength And Vertical Jump Performance, Samuel Montalvo
Effects Of Different Stretching Modalities On The Antagonist And Agonist Muscles On Isokinetic Strength And Vertical Jump Performance, Samuel Montalvo
Open Access Theses & Dissertations
Warm-ups are essential components of all training sessions, sports, and physical activities. Warm-ups are typically composed of a variety of stretches. Two stretching modalities that are commonly performed before any physical activity are the static and dynamic stretching modalities. Historically, static stretching has been used as a preferred stretching modality during the warm-up period. However, research indicates that static stretching â?? if done prior to the training session â?? may inhibit the expression of muscular strength, muscular activation, and vertical jump height. On the contrary, dynamic stretching has been shown to improve the expression of muscular strength, muscular activation, and …
The Effect Of Shin-Torso Alignment On Muscle Activity And Joint Angles Of The Lower Extremity In Collegiate Ice Hockey Players, Noah A. Pring, Stacy L. Solomon, Andy Obrien, Ryan T. Conners, Paul N. Whitehead
The Effect Of Shin-Torso Alignment On Muscle Activity And Joint Angles Of The Lower Extremity In Collegiate Ice Hockey Players, Noah A. Pring, Stacy L. Solomon, Andy Obrien, Ryan T. Conners, Paul N. Whitehead
International Journal of Exercise Science
International Journal of Exercise Science 14(1): 552-562, 2021. Ice hockey is prevalent with injuries due to fatigue-related degradation of mechanics occurring throughout a season. The player’s skating position is vital because it can impact muscle activation patterns of the lower extremity. If too much stress is placed on a muscle, it could lead to muscle fatigue and increased likelihood of injury. The purpose of this study was to measure muscle activation patterns and joint angle changes of the lower extremity in ice hockey players during three different simulated skating positions. Electromyography sensors were placed on muscles of the quadriceps, hamstrings, …
Ankle-Knee Initial Contact Angle And Latency To Maximum Angle Are Affected By Prolonged Run, Sydni Wilhoite, Jessica Mutchler, Barry Munkasy, Li Li
Ankle-Knee Initial Contact Angle And Latency To Maximum Angle Are Affected By Prolonged Run, Sydni Wilhoite, Jessica Mutchler, Barry Munkasy, Li Li
International Journal of Exercise Science
International Journal of Exercise Science 14(1): 33-44, 2021. The initial contact and midstance angles may influence injury risk. Previous literature has not assessed these angles under the influence of new footwear for a non-exhaustive prolonged run or the relationship between the angles. To assess lower extremity kinematic changes and the relationship between kinematic parameters at initial contact and midstance with prolonged running under the influence of different types of footwear. Twelve experienced, recreational runners (6 male; 6 female; 24.8 ± 8.4 years; 70.5 ± 9.3 kg; 174.1 ± 9.7 cm) ran for 31 minutes at a self-selected pace for three …
The Biomechanical Energetics Of Terrestrial Locomotion In California Sea Lions (Zalophus Californianus): Efficiency Of Quadrupedal Galloping, Sarah Kerr
West Chester University Master’s Theses
Pinnipedia, an order of semi-aquatic marine mammals, adapted a body design that allows for efficient aquatic locomotion but limited terrestrial locomotion. Phocids (true seals) have reduced forelimbs and are unable to bring their hindlimbs beneath them during terrestrial locomotion. Otariids, like the California sea lion (Zalophus californianus), have enlarged forelimbs and can bring their hindlimbs under the body to locomote quadrupedally on land. Due to these differences, phocids are expected to move on land with greater energetic costs compared to otariids. The mechanical costs of transport and power outputs of terrestrial locomotion were compared between the California sea …
Broadening The Capability Of Kinetics Analysis In Biomechanics, Nicholas Nelson
Broadening The Capability Of Kinetics Analysis In Biomechanics, Nicholas Nelson
Electronic Theses and Dissertations
Two studies are discussed in this manuscript each preceded by a literature review of the topic. The first review and study explore agility movements and the effect that alternative upper designs in shoes might have on ground reaction force measures of performance. The second review and study evaluate methods of predicting ground reaction forces without the use of a force platform. A method of using effective forces and ways of improving its accuracy are evaluated in depth.