Kinesiology Commons^™

The Effect Of Cold-Water Immersion On Running Mechanics, Lucas M. Dibenedetto, Kristyne Wiegand, Julia Freedman Silvernail

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 547-555, 2019. Cryotherapy is a common treatment used by athletes for rehabilitating acute injuries of a joint or muscle in order to accelerate recovery time and promptly return to play. Therefore, the potential effects of cryotherapy on performance and injury risk should be considered. The purpose of the current study was to investigate the effects of cold-water immersion on running mechanics. Fifteen healthy male and female participants (24.6 ± 5.74 years, 166.37 ± 7.67 cm, 71.72 ± 17.7 kg, 27.47 ± 7.55% body fat) were recruited for the study. Participants completed 10 running trials …

Current Athletic Training Educational Preparation For Dry Needling, Brian V. Hortz, Sue Falsone, Duncan Tulimieri

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: Dry needling is an advanced practice skill that many athletic trainers are being trained to perform. The purpose of this study is to determine the degree to which the current athletic training educational competencies and standards prepare practitioners for the performance of dry needling tasks. Methods: An expert panel review was used to verify which of the dry needling tasks are currently taught through entry-level athletic education as defined by the 5^th edition competencies and 2020 standards. Results: Results demonstrated that 11% of the tasks were dry needling specific and these were regarded as not provided through entry-level …

Commentary: The Use Of Case-Based Learning And Concept Mapping To Teach Students Clinical Reasoning, Jeremy R. Hawkins, Michael Reeder, Michael Olson, Amy Bronson

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Introduction: Teaching students as inexperienced clinicians the process of evaluating athletic injuries and medical conditions is often challenging. Utilizing case-based learning and concept mapping as educational tools can facilitate growth in the clinical and diagnostic decision making process. Discussion: Experienced clinicians regularly employ case pattern recognition and hypothetico-deductive reasoning in clinical settings. Each type of reasoning is prone to anchoring and confirmation bias, devaluing relevant information, and framing effect if not utilized correctly. Classroom instructors and preceptors can use case-based learning and concept mapping to help students as inexperienced clinicians organize their thinking and more effectively apply their …

The Effects Of Deep Oscillation Therapy For Individuals With Lower-Leg Pain, Mccall E. Christian, Riley C. Koenig, Zachary K. Winkelmann, Kenneth E. Games

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: Lower extremity (LE) pain accounts for 13-20% of injuries in the active population. LE pain has been contributed to inflexibility and fascial restrictions. Deep oscillation therapy (DOT) has been proposed to improve range of motion and reduce pain following musculoskeletal injuries. Therefore, our objective was to determine the effectiveness of DOT on ankle dorsiflexion range of motion (ROM) and pain in individuals with and without lower-leg pain. Methods: We used a single blind, pre-post experimental study in a research laboratory. Thirty-two active participants completed this study. Sixteen individuals reporting lower-leg pain and sixteen non-painful individuals completed the study. Participants …

Perceptual And Contextual Sources Of Athletic Training Confidence: The Transition To Professional Entry Level Master’S Programs, Craig E. Pfeifer, Erin Moore, Brian Seiler, Caroline Thomason, Eva V. Monsma

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Introduction: The shift of athletic training education from undergraduate degrees to professional master’s degrees and the prominence of computer-based credentialing may impact the hands-on experiences beneficial for developing confidence in athletic training competency domains. Health care provider confidence is critical for clinical skill development, performance and enhancing patient care. Purpose: To examine domain specific efficacy, its sources, learning contexts (i.e., classroom, laboratory, clinical settings) and clinical characteristics by program types. Method: Descriptive, cross-sectional design where 178 Athletic Trainers (AT; age 24.25 + 3.76, n = 72 male, n = 106 female) participated in the study (Master’s Program (MP) = 38; …

Effects Of Personal Body Armor On Functional Movement Capability In Healthy Adults, Colin D. Tomes, Matthew David Lewis

International Journal of Exercise Science

International Journal of Exercise Science 12(6): 536-546, 2019. The Functional Movement Screen (FMS) is a tool used to assess fundamental movement patterns and has been utilized to determine movement readiness of tactical athletes. However, tactical athletes rarely perform tasks without load carriage, and limited research evaluating loaded tactical personnel via the FMS has been conducted. Therefore, the primary aim of this study was to determine if ballistic vest wear results in movement deficits as evaluated by the FMS. A convenience sample of college students (n = 31) completed test sessions in loaded and unloaded conditions. Subjects completed each FMS …

Considering Physical Well-Being, Self-Perceptions, And Support Variables In Understanding Youth Academic Achievement, Erin E. Centeio, Cheryl L. Somers, E. Whitney G. Moore, Alex Garn, Noel Kulik, Jeffrey Martin, Bo Shen, Nate Mccaughtry

Kinesiology, Health and Sport Studies

The purpose of this study was to examine the relation between measures of students’ physical well-being and self-perception and their academic achievement. Specifically, we look at students’ social support for physical activity, physical activity perceptions, self-concept, self-efficacy, health behaviors, and cardiorespiratory fitness (as measured by the progressive aerobic cardiovascular endurance run [PACER] test). Students (n = 697 fifth graders) were surveyed at the beginning of the school year. A two-group path analysis revealed notable relationships between the predictor variables and proximal and distal outcomes, with some paths moderated by sex. One relationship that was significant for both sexes was …

Effects Of Caffeine On Perceptually-Based Intensity Production During Outdoor Running, Kailee Neal, Matt Green, Eric O'Neal, Joyce Mcintosh, Alyssum Reno

International Journal of Exercise Science

ABSTRACT

International Journal of Exercise Science 12(5): 526-535, 2019. Caffeine (CAF) may enhance performance while altering estimated RPE. However, effects of caffeine on RPE production is not well understood. This study examined effects of CAF on velocity (VEL) selection during outdoor running when intensity was prescribed using RPE. Ten (n = 10) fit male runners completed a VO₂ max and two running trials, CAF (6 mg· kg^-1) vs. placebo (PLA). Participants ran a 2.4 km (1.5 m) bout, at prescribed RPE4, and another at prescribed RPE7, following 10 min passive recovery. Separate 2 (trial) x 6 …

How Prosthetic Ankle Stiffness & Load Carriage Affect Metabolic Energy Expenditure During Walking, Erica A. Hedrick, Philippe Malcolm, Jason M. Wilken, Kota Z. Takahashi

UNO Student Research and Creative Activity Fair

The ankle structures play a key role in body support, forward propulsion and leg swing. One important property of the human ankle is its ‘quasi-stiffness’, or resistance to angular motion. The ankle joint stiffness can play a role in aiding the lower leg as its rocks over the foot. Human biological ankle stiffness changes in response to changes in the mechanical demands of walking (e.g. added load or changes in speed), using active muscle contractions. However, the role of ankle stiffness in regulating metabolic energy across walking conditions is unknown. Therefore, the purpose of this study is to determine how …

Walking Adaptations To An Ankle Foot Orthosis In Individuals With Peripheral Artery Disease, Todd Leutzinger, Iraklis Pipinos, Jason Johanning, Mahdi Hassan, Holly Despiegelaere, Mukul Mukherjee, Sara Myers

UNO Student Research and Creative Activity Fair

Single Session Walking Adaptations to an Ankle Foot Orthosis in Patients with Claudication and Peripheral Artery Disease

Todd Leutzinger^{1, 2}, Iraklis Pipinos^{2, 3}, Jason Johanning^{2, 3}, Mukul Mukherjee¹, Sara Myers^{1, 2}

¹Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE USA

²Nebraska and Western Iowa Veterans Affairs’ Medical Center, Omaha, NE USA

³Department of Surgery, University of Nebraska Medical Center, Omaha, NE USA

Email: [email protected]

Peripheral artery disease (PAD) is an atherosclerotic disease affecting the arteries of the lower extremities [1]. The primary symptom of PAD is …

The Effects Of Stiffness Of A Prosthetic Shock-Absorbing Pylon On Mechanical Work During Walking, Jenny Anne Maun

UNO Student Research and Creative Activity Fair

Name: Jenny Anne Maun

Title: The effects of stiffness of a prosthetic shock-absorbing pylon on mechanical work during walking

Degree: Masters

Faculty Advisor: Kota Z. Takahashi, PhD

Co-authors: Steven A. Gard, PhD; Matthew J. Major, PhD

A prosthetic shock-absorbing pylon (SAP) is intended to attenuate impact forces, provide comfort, and reduce residual limb pain for prosthesis users. However, the effect of an SAP and its spring stiffness on the mechanical work done by the prosthetic limb during walking remains unclear. The purpose of this study: to investigate the effects of SAP spring stiffness and walking speed on the mechanical work …

How The Foot Modulates Its Mechanics During Uphill And Downhill Walking, Jeffrey M. Patterson, Kota Z. Takahashi

UNO Student Research and Creative Activity Fair

The foot's biomechanical role in walking on sloped surfaces is currently unclear. While previous biomechanics studies have examined the hip, knee, and ankle, the foot is oversimplified as a rigid-body segment. This oversimplification overshadows its complex structure and function. In this project, we use an innovative multi-segment foot model to explore how the foot adapts its mechanics to incline and decline walking. Preliminary results have revealed that the foot is capable of adapting its mechanical work profile to both incline and decline walking. Specifically, the foot can increase its positive work output (i.e., increased energy generation) during inclined walking to …

Effect Of Dual-Task Walking On Long-Range Correlations In People With Parkinson's Disease, Shane Meltz

UNO Student Research and Creative Activity Fair

Parkinson’s Disease (PD) causes gait to be more variable and more random. Gait variability is related to disease severity, and may be a marker of fall risks. Gait in PD is attention-dependent, meaning a distraction while walking could be detrimental. The effects of dual-task walking on gait variability in PD are unclear (in particular fractal fluctuations). This study will determine if dual-task walking impacts stride-to-stride variability compared to normal walking in people with Parkinson’s Disease. We predict that dual-tasking will lead to more random stride-to-stride variability in people with PD, compared to controls. Also, within the PD group, we predict …

Effect Of Handrail Use During Stair Climbing In Oa Patients: A Pilot Study, Jenna Ackerman

UNO Student Research and Creative Activity Fair

Introduction: For the patients with osteoarthritis of the knee, stairs are commonly a difficult task and may be the first thing affect by osteoarthritis.1 This population often employs altered strategies when they approach, ascend, and descend the stairs compared to a healthy population. Within 12 years, 80% of patients develop knee osteoarthritis in the contralateral limb.2 Handrails play an important role by assisting with balance, control, and confidence, but their use needs to be assessed even further to fully understand how handrails impact the contralateral limb in osteoarthritic patients and how they may be integrated optimally into gait rehabilitation.

Purpose: …

Skeletal Muscle Mitochondrial Biogenesis In Response To Exercise And Cold Exposure, Camille Larson

UNO Student Research and Creative Activity Fair

BACKGROUND: Aerobic exercise triggers mitochondrial biogenesis, the generation of new mitochondria, by ATP depletion and subsequent activation of the AMPK signaling pathway. This leads to enhanced expression of PGC-1α, a positive regulator of respiration, mitochondrial biogenesis, and adaptive thermogenesis. Previous research from our lab has shown that exercise followed by cold recovery enhances the transcription of genes associated with mitochondrial growth and division, however the recovery period was necessary for this response. Perhaps exercising in a colder external environment would induce a greater thermoregulatory response and gradient between ambient skin and core temperature that may lead to altered mitochondrial …

The Effects Of Swimming Training On Arterial Stiffness, Muscular Strength And Cardiorespiratory Endurance In Postmenopausal Women With Stage 2 Hypertension, Steven Scott

UNO Student Research and Creative Activity Fair

Objective:

Aging is associated with progressive decreases in arterial health and function as well as overall fitness. It is crucial to prevent or reduce the negative effects of aging on vasculature and fitness components by implementing appropriate lifestyle interventions, such as exercise training. We examined the effects of a swimming (SWM) regimen on arterial stiffness (pulse wave velocity, PWV), blood pressure (BP), wave reflection (AIx), muscle strength and aerobic capacity in postmenopausal women with stage 2 hypertension.

Methods:

Using a parallel experimental design, participants were randomly assigned to either a SWM (n=52) or non-exercising control group (n=48) for 20 weeks. …

3d Prosthetics Effects On Standing Posture In Unilateral Upper Limb Deficient Children, Keaton Young

UNO Student Research and Creative Activity Fair

3D Prosthetics Effects on Standing Posture in Unilateral Upper Limb Deficient Children

Keaton Young

Department of Biomechanics, University of Nebraska at Omaha

Introduction

Upper Limb Reduction Deficiency (ULD) is a congenital disability that affects the upper limb, which the Center for Disease Control and Prevention estimates that nearly 1,500 babies are born with ULD in the United States yearly ^1,2. Prior research has focused on functional treatment of the upper limbs but has lacked observance of the effects that prosthetics and limb loss incur to the trunk. Therefore, the purpose of this study is to examine the acute effects …

Isolating Aspects Of Gait Through The Use Of Pacing Signals: A Pilot Study, Joel Sommerfeld

UNO Student Research and Creative Activity Fair

A number of recent studies have shown that the temporal structure of pacing signals greatly influences the gait dynamics observed when coordinating with those signals. Typically, those studies have focused on autocorrelation structure (ACF). The current study builds on that work by addressing how the probability distribution (PDF) of pacing signals contributes to the process of synchronization. Results show that people use both of those sources of information when coordinating the timing of the lower limbs with an external pacing signal.

The Time Of Slip Onset During Stance Influences The Characteristics Of The Unconstrained Perturbation, Corbin Rasmussen, Nathaniel Hunt

UNO Student Research and Creative Activity Fair

Falls pose a significant health hazard, resulting in devastating injuries like broken wrists, fractured hips, and traumatic brain injuries that exceed $50 billion in U.S. medical costs. To address these risks, biomechanists have subjected individuals to simulated slips in order to study the factors that lead to falls. These studies have focused on slips that happen immediately after heel-strike and are unnaturally restricted by the methods used to cause the slip. Therefore, the effects of unconstrained slips that occur throughout stance phase are unknown. To address this knowledge gap, we examined the relationship between the timing of slip onset and …

Subthreshold Vibration Influences The Posture And Gait Of Transtibial Amputees, Charles Sloan

UNO Student Research and Creative Activity Fair

Unilateral transtibial amputees lose the afferent pathways of the limb when amputation occurs. The addition of vibration has shown to increase sensation on the applied limb. This study looks into how the addition of subthreshold vibration affects amputee gait and posture. Vibration applied to the residual limb was shown to have worked in posture, but not in gait.

Influence Of Hip Abductor Fatigue On Acl Loading During Single-Leg Landing, Namwoong Kim

UNO Student Research and Creative Activity Fair

A musculoskeletal simulation study is necessary to identify the cause-effect relationship between hip abductor weakness and ACL loading during athletic events such as landing and jumping. The purpose of this study was to identify the effect of weakness of hip abductors on lower extremity kinematics and ACL loading during single-leg landings. We hypothesized that hip abductor weakness would alter lower extremity joint kinematics. We also hypothesized that hip abductor weakness would increase ACL loading during single-leg landings. This study was a combination of a human experiment and a musculoskeletal modeling simulation. Ten healthy participants performed single-leg landing from a height …

Cardiorespiratory Responses To Shallow Water Exercise: A Sex Comparison, Mitchell Garant Fisher, Laura Jean Miller, Jerusalem Tesfaye, Karen Roemer, Debra Mary D'Acquisto, Leo Joseph D'Acquisto

International Journal of Aquatic Research and Education

This investigation examined physiological responses to shallow water exercise (SWE) and to a high-intensity interval SWE workout (HIISWE) in males (M, n=9) and females (F, n=9). Participants performed 5 X 5 min. SWE bouts (bts.) at ratings of perceived exertion (RPE) 9, 11, 13, 15 and 17 (Borg scale) and a maximal bout of SWE with metabolic, heart rate (HR), and blood lactate (BLa) responses monitored. The same measurements were performed during HIISWE (4 X 4-min bts., alternating 20-s “all-out” and 10-s rest). Peak oxygen uptake (V̇O₂) and BLa were greater in M (3.6 ± 0.4 vs. 2.7 …

Heat Exposure And Hypohydration Exacerbate Physiological Strain During Load Carrying, Elizabeth L. Adams, Douglas J. Casa, Robert A. Huggins, Julie K. Demartini, Rebecca L. Stearns, Rachel M. Kennedy, Lindsay J. Distefano, Lawrence E. Armstrong, Carl M. Maresh

All PTHMS Faculty Publications

Heat exposure and hypohydration induce physiological and psychological strain during exercise; however, it is unknown if the separate effects of heat exposure and hypohydration are synergistic when co-occurring during loaded exercise. This study compared separate and combined effects of heat exposure and hypohydration on physiological strain, mood state, and visual vigilance during loaded exercise. Twelve males (mean±SD; age, 20±2 years; body mass, 74.0±8.2 kg; maximal oxygen uptake, 57.0±6.0 mLkg-1min-1) completed 4 trials under the following conditions: euhydrated temperate (EUT), hypohydrated temperate (HYT), euhydrated hot (EUH), and hypohydrated hot (HYH). Exercise was 90 min of treadmill walking (∼50% VO2 max, 5% …

Parent Perceptions Of Their Child's Coach: Coaching Knowledge, Behavior, And Interpersonal Relationships, Eric Martin

Kinesiology Faculty Publications and Presentations

The two most significant agents for youth athletes are coaches and parents. Even though the parent-child and coach-athlete relationship has been well explored, the relationship between parents and coaches has remained largely unexamined in the literature. Therefore, the current project surveyed 251 parents of children involved in the USTA 10 & Under tennis program concerning parent perceptions of their coach and the coach-parent relationship. Overall, parents rated their relationship with their coach as positive and communicated with them frequently on several aspects of the tennis environment and their child’s development. Additionally, parents saw their child’s coach as knowledgeable and positive. …

Validation Of A New Incremental Swim Test As A Tool For Maximum Oxygen Uptake Analysis In Lifeguards, Brais Ruibal-Lista, José Palacios-Aguilar, José Antonio Prieto, Sergio López-García, José Antonio Cecchini-Estrada, Miguel Santiago-Alonso, Cristian Abelairas-Gómez

International Journal of Aquatic Research and Education

This study was designed to validate an incremental test predicting maximum oxygen uptake for lifeguards. A maximum incremental test was performed in the laboratory (i.e., treadmill run) and in the pool (i.e., swim) by 10 certified lifeguards. The values of maximum oxygen uptake (VO₂Max), maximum heart rate (HRMax), and lactate (LaMax) achieved during both tests were analyzed. The VO₂Max (0.87, p =.001), HRmax (0.85, p = .002) and LaMax (0.67, p

An Altered Spatiotemporal Gait Adjustment During A Virtual Obstacle Crossing Task In Patients With Diabetic Peripheral Neuropathy, Chun-Kai Huang, Vijay Shivaswamy, Pariwat Thaisetthawatkul, Lynn Mack, Nicholas Stergiou, Ka-Chun Siu

Journal Articles

This study investigates spatiotemporal gait adjustments that occur while stepping over virtual obstacles during treadmill walking in people with/without diabetic peripheral neuropathy (DPN). Eleven adults with Type 2 diabetes mellitus, ten DPN, and 11 age-matched healthy adults (HTY) participated in this study. They stepped over forthcoming virtual obstacles during treadmill walking. Outcomes such as success rate, spatiotemporal gait characteristics during obstacle crossing, and correlations between these variables were evaluated. The results partially supported our hypotheses that when comparing with HTY and DM, people with DPN adopted a crossing strategy which decreased obstacle crossing success rate and maximal toe elevation, …

Factors Related To Average Concentric Velocity Of Four Barbell Exercises At Various Loads, Christopher A. Fahs, Julia C. Blumkaitis, Lindy M. Rossow

Faculty Scholarship

The resistance exercise load is the primarily determinant of the average concentric velocity (ACV) during a repetition. It is unknown whether individual factors such as training experience or anthropometrics also influence the ACV. Previous research has shown the ACV during the 1 repetition maximum (1RM) varies between exercises, but it is not clear whether ACV is different between exercises at various percentages of the 1RM. This information could provide practical guidelines for trainees using ACV to select training loads. Therefore, the purpose of this study was to determine whether training age, current training frequency, limb length, height, and relative strength …

Practice Variability Promotes An External Focus Of Attention And Enhances Motor Skill Learning, Lee-Kuen Chua, Maria Katrina Dimapilis, Takehiro Iwatsuki, Reza Abdollahipour, Rebecca Lewthwaite, Gabriele Wulf

Kinesiology and Nutrition Sciences Faculty Research

Variability in practice has been shown to enhance motor skill learning. Benefits of practice variability have been attributed to motor schema formation (variable versus constant practice), or more effortful information processing (random versus blocked practice). We hypothesized that, among other mechanisms, greater practice variability might promote an external focus of attention on the intended movement effect, while less variability would be more conducive to a less effective internal focus on body movements. In Experiment 1, the learning of a throwing task was enhanced by variable versus constant practice, and variable group participants reported focusing more on the distance to the …

Effects Of Varying Doses Of Oral Bisphenol A Consumption On Type 2 Diabetes Risk Markers In Healthy Adults, Todd Hagobian, Alyssa Bird, Sean Stanelle, Dana Williams, Andrew Schaffner, Suzanne Phelan

Kinesiology and Public Health

Objective

To determine the effects of varying doses of orally administered BPA on indices of glucose metabolism.

Methods

Eleven college students (21.0 ± 0.8 years; 24.2 ± 3.9 kg/m²) were randomized in a double-blinded, crossover fashion separated by >1 week to placebo (PL), deuterated BPA at 4 µg/kg body weight (BPA-4), and deuterated BPA at 50 µg/kg body weight (BPA-50). Total BPA, glucose, insulin, and C-peptide were assessed at baseline, minutes 15, 30, 45, 60, and every 30 minutes for 2 hours in response to a glucose tolerance test.

Results

There was a significant condition × time interaction …

Unintentional Bathtub Drowning Deaths Among Those Aged 65 Years And Older In Australia, Amy E. Peden, Richard C. Franklin, John H. Pearn M.D., Alison J. Mahony

International Journal of Aquatic Research and Education

When compared with other age groups, fatal drowning rates among seniors have stayed static. This study identifies causal factors in unintentional bathtub drowning deaths among people aged 65 years and over. This study is a 10-year (2003-2012) total population retrospective survey of all unintentional bathtub (baths, spa baths and showers) drowning deaths afflicting people aged 65 years and over. Data were sourced from the Australian National Coronial Information System. Risk factors and circumstantial variables were analysed including sex, age, activity prior to drowning, alcohol, drugs, pre-existing medical conditions, living circumstances, time until found, and performance of cardio-pulmonary resuscitation (CPR). There …