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A Comparison Of Cervical And Trunk Musculoskeletal Characteristics Between Female And Male Army Helicopter Pilots, Takashi Nagai, Karen A. Keenan, John P. Abt, Timothy C. Sell, Brian W. Smalley, Michael D. Wirt, Scott M. Lephart 2016 University of Pittsburgh

A Comparison Of Cervical And Trunk Musculoskeletal Characteristics Between Female And Male Army Helicopter Pilots, Takashi Nagai, Karen A. Keenan, John P. Abt, Timothy C. Sell, Brian W. Smalley, Michael D. Wirt, Scott M. Lephart

International Journal of Aviation, Aeronautics, and Aerospace

Introduction: Neck pain (NP) and low back pain (LBP) are prevalent among military helicopter pilots. Although there have been few studies on sex differences in the NP/LBP prevalence in this population, females are shown to be at a greater risk of NP/LBP in civilian studies. This disparity may be due to musculoskeletal characteristics differences that predispose females for NP/LBP. The purpose of this study was to compare cervical and trunk musculoskeletal characteristics between male and female pilots. Methods: A total of 8 female pilots (Age: 27.6 ± 4.2yrs, HT: 166.1 ± 7.7cm, WT: 67.9 ...


Encoding Of Saltatory Tactile Velocity In The Adult Orofacial Somatosensory System, Rebecca Custead 2016 University of Nebraska-Lincoln

Encoding Of Saltatory Tactile Velocity In The Adult Orofacial Somatosensory System, Rebecca Custead

Public Access Theses and Dissertations from the College of Education and Human Sciences

Processing dynamic tactile inputs is a key function of somatosensory systems. Spatial velocity encoding mechanisms by the nervous system are important for skilled movement production and may play a role in recovery of motor function following neurological insult. Little is known about tactile velocity encoding in trigeminal networks associated with mechanosensory inputs to the face, or the consequences of movement.

High resolution functional magnetic resonance imaging (fMRI) was used to investigate the neural substrates of velocity encoding in the human orofacial somatosensory system during unilateral saltatory pneumotactile inputs to perioral hairy skin in 20 healthy adults. A custom multichannel, scalable ...


The Development Of A Prosthetic Training Software For Upper Limb Amputees, Tyler Kayne Sullins 2016 University of South Florida

The Development Of A Prosthetic Training Software For Upper Limb Amputees, Tyler Kayne Sullins

Graduate Theses and Dissertations

The purpose of this study was to develop an intuitive software that aids in the field of prosthetic training and rehabilitation by creating an individualized visualization of joint angles. This software is titled “the prosthetic training software (PTS) for individualized joint angle representation”, and it enables the individualized portrayal of predicted or pre-recorded joint angles. The PTS is an intuitive program for clinicians and prosthesis users that produces an animation of a virtual avatar reflecting the user’s segment lengths and amputation for rehabilitation and training purposes.

The PTS consists of a graphical user interface (GUI) and a 3D visualization ...


Prosthetic Socket Cooling System, Benjamin K. Kraw, Kathy Ha, Derek Piastrelli, Cuong Lai 2016 California Polytechnic State University – San Luis Obispo

Prosthetic Socket Cooling System, Benjamin K. Kraw, Kathy Ha, Derek Piastrelli, Cuong Lai

Mechanical Engineering

A team of four senior-level undergraduate students in the Interdisciplinary Senior Project Design course in the Engineering Department of California Polytechnic State University: San Luis Obispo have worked to develop a prosthetic socket cooling system, namely for veteran Taylor Morris and exclusively for a transfemoral prosthetic socket, under the Quality of Life+ Laboratory. This cooling system will utilize the thermoelectric effect known as the Peltier effect to transmit heat generated from the residual limb to the surrounding environment by means of forced convection over small aluminum heat sinks. Two measurement devices have also been developed to, one, measure the heat ...


Physical Testing Of Potential Football Helmet Design Enhancements, Michael Jeremy Schuster 2016 California Polytechnic State University, San Luis Obispo

Physical Testing Of Potential Football Helmet Design Enhancements, Michael Jeremy Schuster

Master's Theses and Project Reports

Football is a much loved sport in the United States. Unfortunately, it is also hard on the players and puts them at very high risk of concussion. To combat this an inventor in Santa Barbara brought a new design to Cal Poly to be tested.

The design was tested in small scale first in order to make some preliminary conclusions about the design. In order to fully test the helmet design; however, full scale testing was required. In order to carry out this testing a drop tower was built based on National Operating Committee on Standards for Athletic Equipment, NOCSAE ...


Which Is The Primary Factor Influencing Running Stride Parameters: Age Or Lower Limb Strength?, Carl Jewell, Eric Rohr, J. Hamill, Katherine A. Boyer 2016 University of Massachusetts Amherst

Which Is The Primary Factor Influencing Running Stride Parameters: Age Or Lower Limb Strength?, Carl Jewell, Eric Rohr, J. Hamill, Katherine A. Boyer

UMass Center for Clinical and Translational Science Research Retreat

Much still remains unknown about the impact of age, and age-related changes in muscle function, on gait parameters. The aim of this study was to examine the impact of strength on running gait parameters across the adult lifespan. We tested the hypothesis that a greater amount of the variance in peak hip, knee and ankle sagittal plane moments would be explained by peak isometric joint torques as compared to age. Twenty-four healthy adults, ages 20-66 years, completed 5 trials on an overground 20-meter runway at a standardized velocity of 3.5 ms-1 (± 5%). Participants performed maximal isometric plantar flexion and ...


Examining Movement Function In Patients With Knee Osteoarthritis, Katherine A. Boyer 2016 University of Massachusetts Amherst

Examining Movement Function In Patients With Knee Osteoarthritis, Katherine A. Boyer

UMass Center for Clinical and Translational Science Research Retreat

As part of the mini-symposium entitled "Biomechanical Gait Analysis for Improving Clinical Outcomes: Applications for Orthopedics, Geriatrics and Community Based Research," this presentation explores research on gait analysis and pain for patients with knee osteoarthritis.


Foot Kinematics And Neuromuscular Preactivation In Habitual Forefoot And Rearfoot Runners, Rhiannon Seneli 2016 University of Wisconsin-Milwaukee

Foot Kinematics And Neuromuscular Preactivation In Habitual Forefoot And Rearfoot Runners, Rhiannon Seneli

Theses and Dissertations

As the rate of running related injuries has failed to decline despite advances in footwear, many researchers have begun focusing on different foot strike patterns possible contribution to injury risk. While many studies have focused on the differences between RFS and FFS running, few have investigated kinematic differences within the distal foot in habitual RFS and FFS runners and have failed to consider mechanical and neuromuscular changes due to fatigue. The purpose of this study, therefore, was to investigate foot kinematics and neuromuscular differences between RFS and FFS runners at the beginning and end of an exhaustive run. Fifteen habitual ...


A Study Of The Hydrostatic And Hydrodynamic Properties Of Aeoliscus Straigatus, Jeremy J. Keifenheim 2016 University of Wisconsin-Milwaukee

A Study Of The Hydrostatic And Hydrodynamic Properties Of Aeoliscus Straigatus, Jeremy J. Keifenheim

Theses and Dissertations

Aeoliscus strigatus is a highly maneuverable fish found in the Indo-Pacific region. It boasts a unique head down posture and employs median paired fin propulsion to perform precise movements. The need for highly maneuverable underwater AUVs for exploration and testing drove the examination of the hydrostatics and hydrodynamics influencing Aeoliscus. To determine the stability of Aeoliscus the center of gravity and buoyancy were found. Center of gravity was experimentally located using the three plumb line method while center of buoyancy was located using two separate methods. The first method utilized the measured buoyant force, a rigidly mounted fish and a ...


Static Frontal Plane Tibiofemoral Alignments And Their Effects On Knee Biomechanics During Level Walking And Stair Ascent Tasks, Hunter Jared Bennett 2016 University of Tennessee - Knoxville

Static Frontal Plane Tibiofemoral Alignments And Their Effects On Knee Biomechanics During Level Walking And Stair Ascent Tasks, Hunter Jared Bennett

Doctoral Dissertations

Knee osteoarthritis is a degenerative joint disease that can onset due to abnormal knee adduction moments (KAMs), which are related to frontal plane knee joint alignment. Gait modifications including toe-in (TI) and wider step widths have been proposed as individual intervention strategies, but have not been previously combined, to reduce abnormal frontal plane loading in healthy and osteoarthritic populations. Study One investigated clinical based measurements to predict radiographic frontal plane knee joint alignment, measured as the mechanical axis angle (MA). Study Two compared three different hip joint center estimation methods on MA predictions using three-dimensional motion capture. Study Three and ...


Wheelchair Fatigue Reducer, Aaron Miller, Dennis Andre Norfleet 2016 University of Tennessee, Knoxville

Wheelchair Fatigue Reducer, Aaron Miller, Dennis Andre Norfleet

University of Tennessee Honors Thesis Projects

No abstract provided.


Predictive Value Of The Functional Movement Screen As It Relates To Anterior Cruciate Ligament Injury, Daniel A. Herring, Kyle D. Cherry, Hannah L. Stedge 2016 Cedarville University

Predictive Value Of The Functional Movement Screen As It Relates To Anterior Cruciate Ligament Injury, Daniel A. Herring, Kyle D. Cherry, Hannah L. Stedge

The Research and Scholarship Symposium

Introduction: Anterior cruciate ligament injuries occur over 200,000 times annually in the United States alone (Brophy, et al. 2009). This injury strains the healthcare system and affects the players, teams, parents, and the organization they are a part of. There have been, however, clinically researched risk factors that predispose athletes to ACL injury (Gignac, et al. 2015; Laible, et al. 2014). As a result, there is a clinical need for an effective screening tool to identify those athletes at risk for ACL injury. The Functional Movement Screen has been shown to be an effective screening tool for detecting athletes ...


Electromyographic And Mechanomyographic Time And Frequency Responses During Fatiguing, Submaximal, Isokinetic Muscle Actions Of The Biceps Brachii, Ethan C. Hill 2016 University of Nebraska-Lincoln

Electromyographic And Mechanomyographic Time And Frequency Responses During Fatiguing, Submaximal, Isokinetic Muscle Actions Of The Biceps Brachii, Ethan C. Hill

Public Access Theses and Dissertations from the College of Education and Human Sciences

The purpose of the present investigation was to examine the time-course of changes in electromyographic (EMG) and mechanomyographic (MMG), time and frequency domain responses during repeated, submaximal, concentric, isokinetic, forearm flexion muscle actions. Twelve men (mean age ± SD = 22.6 ± 2.2 yrs; body weight = 84.0 ± 8.3 kg; height = 178.6 ± 8.3 cm) performed 50 repeated, submaximal (65% of concentric peak torque), concentric muscle actions of the dominant forearm flexors on an isokinetic dynamometer at 60°·s-1. Surface EMG and MMG signals were simultaneously recorded from the biceps brachii muscle. Polynomial regression analyses (first, second, and ...


Markerless Radiostereogammetry Of The Shoulder Joint In Humans: Comparisons Of Scapulohumeral Kinematics Between Individuals With Healthy And Supraspinatus-Impaired Shoulders, Ashley N. Hannon 2016 The University of Western Ontario

Markerless Radiostereogammetry Of The Shoulder Joint In Humans: Comparisons Of Scapulohumeral Kinematics Between Individuals With Healthy And Supraspinatus-Impaired Shoulders, Ashley N. Hannon

Electronic Thesis and Dissertation Repository

The purpose of this collection of studies was to further develop the knowledge of shoulder motion in order to better understand joint function through direct measurement of 3D scapulohumeral joint kinematics using a technique of high accuracy. Markerless, bi-planar fluoroscopic radiostereometric analysis using a generic shoulder model was developed in this thesis, reducing the amount of radiation exposure to subjects. The studies compared kinematic data of the scapulohumeral joint in six degrees of freedom with a precise, in-vivo measuring technique. Data were collected on young and older healthy individuals, individuals with a torn supraspinatus and post-surgical intervention.

Although this generic ...


Identification Of Kinematic And Kinetic Injury Risk Predictors In Division I Football Athletes, Corbin M. Rasmussen, Guilherme M. Cesar, Shinya Takahashi 2016 University of Nebraska-Lincoln

Identification Of Kinematic And Kinetic Injury Risk Predictors In Division I Football Athletes, Corbin M. Rasmussen, Guilherme M. Cesar, Shinya Takahashi

UCARE Research Products

biomechanical patterns and insufficiencies that may influence risk of ligamentous injury, such as an anterior cruciate ligament (ACL) tear. One kinematic pattern that has been identified as detrimental to ACL integrity is frontal plane knee collapse (valgus) during jumping and landing tasks.1 Inter-limb differences in force generation have also been connected to the occurrence of lower extremity injury.2 It is not known, however, whether these patterns contribute to the occurrence of lower extremity (LE) non-contact soft-tissue injury. The counter-movement vertical jump (CMVJ) is one way to simultaneously screen for knee collapse and asymmetrical force production patterns. This method ...


A Perceptual Motor Intervention Improves Play Behavior In Children With Moderate To Severe Cerebral Palsy, Bridget O. Ryalls, Regina T. Harbourne, Lisa Kelly-Vance, Jordan Wickstrom, Nicholas Stergiou, Anastasia Kyvelidou 2016 University of Nebraska at Omaha

A Perceptual Motor Intervention Improves Play Behavior In Children With Moderate To Severe Cerebral Palsy, Bridget O. Ryalls, Regina T. Harbourne, Lisa Kelly-Vance, Jordan Wickstrom, Nicholas Stergiou, Anastasia Kyvelidou

Journal Articles

For children with moderate or severe cerebral palsy (CP), a foundational early goal is independent sitting. Sitting offers additional opportunities for object exploration, play and social engagement. The achievement of sitting coincides with important milestones in other developmental areas, such as social engagement with others, understanding of spatial relationships, and the use of both hands to explore objects. These milestones are essential skills necessary for play behavior. However, little is known about how sitting and play behavior might be affected by a physical therapy intervention in children with moderate or severe CP. Therefore, our overall purpose in this study was ...


Using Mixed Methods To Measure The Perception Of Community Capacity In An Academic–Community Partnership For A Walking Intervention, Charkarra Anderson-Lewis, Diana Castellanos, Arnecca Byrd, Karen Zynda, Alicia Sample, Vickie Reed, Mary Beard, Latessa Minor, Kathleen Yadrick 2016 University of Southern Mississippi

Using Mixed Methods To Measure The Perception Of Community Capacity In An Academic–Community Partnership For A Walking Intervention, Charkarra Anderson-Lewis, Diana Castellanos, Arnecca Byrd, Karen Zynda, Alicia Sample, Vickie Reed, Mary Beard, Latessa Minor, Kathleen Yadrick

Diana Cuy Castellanos

H.U.B. City Steps is a 5-year community-based participatory research walking intervention designed to help lower blood pressure in a majority African American population in southern Mississippi via community collaboration and capacity building, increased walking, culturally tailored health education sessions, and motivational interviewing. Building community capacity for physical activity is a key component of this intervention. Qualitative and quantitative methods have been used to assess how project stakeholders perceive the community capacity-building efforts of the project. This article illustrates the baseline results of this mixed methods approach from the perspective of three groups of stakeholders: project researchers and staff ...


Tutorial Lecture: Functional Human Movements: Are They A Better Assessment Of Athletic Neuroperformance?, Nicholas G. Murray, Douglas Powell, D. S. Blaise Williams III 2016 Georgia Southern University

Tutorial Lecture: Functional Human Movements: Are They A Better Assessment Of Athletic Neuroperformance?, Nicholas G. Murray, Douglas Powell, D. S. Blaise Williams Iii

Nicholas G. Murray

Maintenance of upright posture during human movement (standing or walking) is described as a complex process requiring the integration of sensory and motor signals with cognitive and attentional demands. This process requires interaction of the individual, the given task and the external environment. The innate task demands and environment play a critical role in determining the characteristics of a successful postural control strategy. Common assessments of postural control such as during static upright stance and over ground walking may not adequately perturb the postural control system to assess the role that sensorimotor integration and neuromuscular performance play in the efficiency ...


Hpcnmf: A High-Performance Toolbox For Non-Negative Matrix Factorization, Karthik Devarajan, Guoli Wang 2016 Fox Chase Cancer Center

Hpcnmf: A High-Performance Toolbox For Non-Negative Matrix Factorization, Karthik Devarajan, Guoli Wang

COBRA Preprint Series

Non-negative matrix factorization (NMF) is a widely used machine learning algorithm for dimension reduction of large-scale data. It has found successful applications in a variety of fields such as computational biology, neuroscience, natural language processing, information retrieval, image processing and speech recognition. In bioinformatics, for example, it has been used to extract patterns and profiles from genomic and text-mining data as well as in protein sequence and structure analysis. While the scientific performance of NMF is very promising in dealing with high dimensional data sets and complex data structures, its computational cost is high and sometimes could be critical for ...


Intravascular Atp And The Regulation Of Blood Flow And Oxygen Delivery In Humans, Anne Crecelius, Brett Kirby, Frank Dinenno 2016 University of Dayton

Intravascular Atp And The Regulation Of Blood Flow And Oxygen Delivery In Humans, Anne Crecelius, Brett Kirby, Frank Dinenno

Anne R. Crecelius

Regulation of vascular tone is a complex response that integrates multiple signals which allow for blood flow and oxygen supply to appropriately match oxygen demand. Here, we discuss the potential role of intravascular ATP as a primary factor in these responses and propose that deficient ATP release may contribute to impairments in vascular control exhibited in aged and diseased populations.


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