Kinesiology Commons^™

Reproducibility And The Effects Of Exercise On The Endurance Index, Michael Dean Smith, Jr.

Theses and Dissertations

Background: The Endurance Index (EI%) is a method to objectively assess a muscle’s ability to resist fatigue. The purpose of these studies was to determine the reproducibility of the EI% and determine the influence of muscular fatigue on the EI%. Methods Study 1: sixteen apparently healthy participants (18-30yrs) completed three nonconsecutive visits each with 3 bouts of 5-minute electrical muscle stimulations (EMS) and accelerometer-based mechanomyography (aMMG) of the vastus lateralis at 4 Hz and low amperage (25-35mA) on the hamstrings of the dominant leg; peak torque was measured at each visit. Study 2: fifteen apparently healthy participants (ages 18-30yrs) …

Analysis Of Connectivity In Emg Signals To Examine Neural Correlations In Muscular Activation Of Lower Leg Muscles For Postural Stability, Diana Mccrumb

Masters Theses

In quiet standing the central nervous systems implements a pre-programmed ankle strategy of postural control to maintain upright balance and stability. This strategy is comprised of a synchronized common neural drive being delivered to synergistically grouped muscles. In this study connectivity between EMG signals of unilateral and bilateral homologous muscle pairs, of the lower legs, during various standing balance conditions was evaluated using magnitude squared coherence (MSC) and mutual information (MI). The leg muscles of interest were the tibialis anterior (TA), medial gastrocnemius (MG), and the soleus (S) of both legs. MSC is a linear measure of the phase relation …

Impaired H-Reflex Adaptations Following Slope Walking In Individuals With Post-Stroke Hemiparesis, Jing Nong Liang, Yun-Ju Lee, Eric Akoopie, Brooke Conway Kleven, Trisha Koch, Kai-Yu Ho

Physical Therapy Faculty Research

Background and Purpose Short term adaptations in the Ia afferent-motoneuron pathway, as measured using the H-reflex, in response to altered ground reaction forces (GRFs) applied at the feet during slope walking have been observed in the non-impaired nervous system. The ability of the stroke-impaired nervous system to adapt to altered GRFs have not been examined. The purpose of this study was to examine the acute effects of altered propulsive and braking forces applied at the feet, which naturally occurs when walking on different slopes, on adaptations of the H-reflex pathway in individuals with chronic post-stroke hemiparesis. Methods Twelve individuals chronically …

Differential Cholinergic Modulation Of Prelimbic And Thalamic Input To The Basolateral Amygdala, Sarah Catherine Tryon

Theses and Dissertations

The basolateral amygdala (BL) is critical for emotional memory acquisition and expression. It receives afferent projections from both cortical and subcortical regions that send glutamatergic transmission to the BL. This input conveys information necessary for survival, including information about one’s behavioral state and environment. How this information is integrated and processed by the BL, however, remains largely unknown. Interestingly, the BL receives the densest amount of cholinergic innervation from the basal forebrain. This acetylcholine (ACh) can modulate emotional memories, but how it modulates specific afferent inputs to the BL is unexplored. To answer this question, we used brain slice field …

The Effect Of Patient Financial Liability On Physical Therapy Utilization And Patient Reported Outcomes For Patients With Low Back Pain: An Instrumental Variable Analysis, Adam D. Lutz

Theses and Dissertations

Low back pain (LBP) is the most common orthopedic complaint managed by physical therapists in the United States. Insurance plans that require greater patient financial liability per physical therapy visit are thought to disincentivize participation in recommended physical therapy plans of care. The primary purpose of this investigation was to use instrumental variable regression to investigate the effect of insurancemediated patient financial liability per visit on physical therapy visit count and functional patient reported outcomes. The secondary purpose of the study was to examine the generalizability of results to the broader excluded patient population—and beyond to patients that seek physical …

Using Immersive Virtual Reality To Assess Context-Dependency Of Locomotor Skill Learning In People With Parkinson's Disease, Aram Kim

Link Foundation Modeling, Simulation and Training Fellowship Reports

Parkinson’s disease (PD) is a progressive neurodegenerative disorder resulting from a loss of multisystem degenerations and neurotransmitter deficiencies such as dopaminergic and cholinergic degenerations [1]–[4]. The degenerations lead to typical clinical manifestation in people with PD is primarily motor functions such as postural instability, impairments in gait, rigidity, tremor, and bradykinesia [2], [4]–[9], but also a wide range of cognitive dysfunctions such as deficits in executive functions and visuospatial processing [10]–[13]. These symptoms exacerbate as the disease progresses and lead to declines in locomotion and high risk of falls [3], [7], [14]–[17]. Among individuals with PD, 5068% of them experience …

Ketogenic Diets And Exercise Performance, Kristin L. Harvey, Lola Holcomb, Stephen C. Kolwicz Jr.

Health Sciences Faculty Publications

The ketogenic diet (KD) has gained a resurgence in popularity due to its purported reputation for fighting obesity. The KD has also acquired attention as an alternative and/or supplemental method for producing energy in the form of ketone bodies. Recent scientific evidence highlights the KD as a promising strategy to treat obesity, diabetes, and cardiac dysfunction. In addition, studies support ketone body supplements as a potential method to induce ketosis and supply sustainable fuel sources to promote exercise performance. Despite the acceptance in the mainstream media, the KD remains controversial in the medical and scientific communities. Research suggests that the …

Metformin Blunts Muscle Hypertrophy In Response To Progressive Resistance Exercise Training In Older Adults: A Randomized, Double‐Blind, Placebo‐Controlled, Multicenter Trial: The Masters Trial, R. Grace Walton, Cory M. Dungan, Douglas E. Long, S. Craig Tuggle, Kate Kosmac, Bailey D. Peck, Heather M. Bush, Alejandro G. Villasante Tezanos, Gerald Mcgwin, Samuel T. Windham, Fernando Ovalle, Marcas M. Bamman, Philip A. Kern, Charlotte A. Peterson

Center for Muscle Biology Faculty Publications

Progressive resistance exercise training (PRT) is the most effective known intervention for combating aging skeletal muscle atrophy. However, the hypertrophic response to PRT is variable, and this may be due to muscle inflammation susceptibility. Metformin reduces inflammation, so we hypothesized that metformin would augment the muscle response to PRT in healthy women and men aged 65 and older. In a randomized, double-blind trial, participants received 1,700 mg/day metformin (N = 46) or placebo (N = 48) throughout the study, and all subjects performed 14 weeks of supervised PRT. Although responses to PRT varied, placebo gained more lean body …

Antimicrobial Properties Of Fucus Vesiculosus And Porphyra Dioica Collected From The Irish Coast., Lenka Jindrichova Miss, Annabel Higgins Hoare, Helen Hughes

SURE Journal: Science Undergraduate Research Experience Journal

Various types of algae play an important role in entire ecosystem and has potential role in the continuous search for biologically active compounds with miscellaneous activities, such as antioxidant, antiviral and antimicrobial. The objective of this study was to study the antimicrobial properties of two diverse seaweeds, Fucus vesiculosus and Porphyra dioca. Antimicrobial compounds from both seaweeds could find potential future use in medical or food industries. Water content analysis was performed on both seaweeds and it was determined that high water content around 80% was apparent for both seaweeds, with higher consistency of water content found for Porphyra dioica …

Ankle And Midtarsal Joint Quasi-Stiffness During Walking With Added Mass, Andrew M. Kern, Nikolaos Papachatzis, Jeffrey M. Patterson, Dustin A. Bruening, Kota Z. Takahashi

Journal Articles

Examination of how the ankle and midtarsal joints modulate stiffness in response to increased force demand will aid understanding of overall limb function and inform the development of bio-inspired assistive and robotic devices. The purpose of this study is to identify how ankle and midtarsal joint quasi-stiffness are affected by added body mass during over-ground walking. Healthy participants walked barefoot over-ground at 1.25 m/s wearing a weighted vest with 0%, 15% and 30% additional body mass. The effect of added mass was investigated on ankle and midtarsal joint range of motion (ROM), peak moment and quasi-stiffness. Joint quasi-stiffness was broken …

Digital Divide Among Caregivers Of Chronic Disease Patients, Ayokunle Olagoke, Harveen Kaur, Ashley M. Hughes

Health and Kinesiology Faculty Publications

Expansive and rapid growth of technology creates unprecedented patient access to health information, including timely communication with care providers via patient portals and the ability to access information regarding specific disease(s) (e.g., cancer). However, several forms of digital engagement with health providers require access and use of reliable internet access. A “digital divide” is used to describe demographic differences which contribute to a patient’s use or disuse of patient portals; prior research have noted disparities in lack of reliable internet access. Despite the prevalence of informal caregivers in patient care, little is known about internet access and use among informal …

Energy Cost Of Land And Shallow Water Walking In Females Who Are Overweight And Obese, Jacquelyn N. Zera, Elizabeth F. Nagle, Bethany B. Gibbs, John P. Abt, John M. Jakicic

International Journal of Aquatic Research and Education

Nineteen overweight or obese females completed three 10-minute experimental trials including a self-selected pace shallow water walking trial, a matched heart rate response land walking trial, and a self-selected pace land walking trial. Energy expenditure (kcal·min^-1)was computed from expired gases assessed via indirect calorimetry. Results showed energy expenditure was lower (p= 0.046) during shallow water walking (6.46 ± 1.38 kcal·min^-1) compared to matched heart rate response land walking trial (7.26 ± 1.29 kcal·min^-1), with no significant difference in between shallow water and self-selected pace land walking (6.92 ± 1.61 kcal·min^-1). …

Tracking Center Of Mass With Limited Inertial Measurement Units, Connor Nathaniel Morrow

Dissertations and Theses

Wearable motion tracking systems pose an opportunity to study and correct human balance and posture during movement. Currently, these observations are either being conducted in laboratories with the use of camera systems and markers placed on the body, or through the use of suits containing large numbers (15-20) of inertial measurement units. However, to aid with rehabilitation of individuals with impaired balance, there needs to be an option to collect these observations outside of clinics and without incurring much cost from the user. I have focused on three inertial measurement units, one placed on each shank and one placed on …

Learning From Incidents To Reduce The Risk Of Drowning In Swimming Pools: Implementation Of Experience-Based Feedback Regarding Near-Misses In Four Public Facilities In France, Élie Vignac, Pascal Lebihain, Bastien Soulé

International Journal of Aquatic Research and Education

The prevention of sports accidents must rely on a detailed knowledge of accident circumstances and risk factors. Today, very few studies have investigated in depth non-fatal drowning incidents that have occurred in public swimming pools (PSP). Learning from incidents seems likely to advance the knowledge of accident scenarios. This research study aimed to capture minor incidents that might identify safety lessons and preventive measures. Incidents of minor and major aquatic events were collected from four PSPs that had hosted 700,000 bathers per year. About 800 incidents and 300 aquatic rescues performed by lifeguards were recorded within a time frame of …

Kinematic Differences Between Professional And Lay Rescuers With And Without The Use Of Real-Time Cpr Feedback, Lyra Clark, Ben Senderling, Jeff R. Gould, Chris Kaufman, Nicholas Stergiou

Journal Articles

Purpose: Guideline-compliant cardiopulmonary resuscitation (CPR) performance can be achieved with training and use of real-time feedback. Kinematic differences are reported between experts and novices in various motor tasks. The aim of this pilot study was to investigate differences in kinematics between professional and lay rescuers during CPR performed on a manikin with and without feedback.

Methods: Professional (n = 5) and lay rescuers (n = 11) performed two minutes of continuous chest compressions on a manikin for two trials. Real-time CPR feedback provided by a defibrillator was disabled in the first trial and enabled in the second. CPR …

Does Fatigue Impact Static And Dynamic Balance Variables In Athletes With Previously Ankle Injury?, Michelle Lacey, Bernard Donne

International Journal of Exercise Science

International Journal of Exercise Science 12(3): 1121-1137, 2019. Ankle injury, resulting in deficits in static and dynamic balance, can result in significant time loss to sport, affect daily activities and potentially place athletes at greater risk of re-injury. In order to identify athletes at risk of ankle injury accurate and reliable balance assessment tools are required. The purpose of the current study was to quantify reliability of static and dynamic balance variables in currently healthy, previously injured, athletes (n = 19) and assess the impact of an intense intermittent zig-zag running protocol to volitional exhaustion, rated by RPE, on balance …

The Effect Of Barefoot Running On Emg Activity In The Gastrocnemius And Tibialis Anterior In Active College-Aged Females, Ryan Beierle, Phoebe Burton, Hayden Smith, Michael Smith, Stephen J. Ives

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 1110-1120, 2019. Running is one of the most popular forms of exercise, thus overuse injuries such as plantar fasciitis, shin splints, and tibial stress fractures are also common. Barefoot/forefoot running has shown promise to reduce overuse injuries by decreasing the impact upon contact with the ground. The arch of the foot utilizes a ‘spring’ system that simultaneously reduces impact and propels the stride forward. Increased muscle activity in a particular location is indicative of greater impact forces, suggesting a larger risk for overuse injuries. The current study investigated the role of the barefoot condition …

Emg Analysis Of The Neuromuscular Activity During Sit-To-Stand From Different Height Chairs In Water, Antonio Cuesta-Vargas

International Journal of Aquatic Research and Education

The purpose of this study was to use surface electromyography to measure the muscular activity during the sit-to-stand task in water and compare it at three different chair heights. Ten healthy young adults [5 males and 5 females (mean ± SD): age, 22.0 ± 3.1 yr; height, 172.8 ± 9.0 cm; body mass, 63.9 ± 17.2 kg] were recruited for study. We used a telemetry EMG system on the following muscles on the right side of the body: quadriceps (vastus medialis and rectus femoris), long head of the biceps femoris, tibialis anterior, gastrocnemius medialis, soleus, rectus abdominis, and erector spinae). …

Analysis Of Cognitive Abilities In Female Swimmers, Nora Bekendam Ph.D., German Diaz Ph.D., Oscar García Ph.D.

International Journal of Aquatic Research and Education

This study compared the differences in spatial relations, spatial ability, and reasoning ability between female swimmers and sedentary people. Fifty-eight participants (24 swimmers and 34 sedentary females) were recruited to complete the PMA E & R tests (Primary Mental Ability Test) and the DAT-SR test (Differential Aptitude Test). Findings indicated that swimmers scored higher in spatial relations, spatial ability, and reasoning ability. The practice of competitive swimming appears to have a positive relationship with the spatial relation, spatial ability and reasoning ability.

Effect Of Aquatic Exercise On Fatigue, Fitness, Arm Edema, Levels Of Distress, And Quality Of Life Among Breast Cancer Survivors, Ellen Broach, Phillip Norrell

International Journal of Aquatic Research and Education

The purpose of this study was to evaluate the effect of a recreational therapy aquatic intervention on physical and psychosocial performance of breast cancer survivors. Eligible participants were assigned to either a water exercise group or a control group who received standard care treatment for breast cancer. The intervention group attended aquatic exercise sessions three times per week for eight weeks in a heated outdoor pool. Sessions lasted 50 minutes in duration. The aquatic exercise group significantly improved their endurance, body mass, level of distress, and total score for fatigue. No significant differences occurred in the control group. Social validity …

Effects Of 6 Months Of Exercise-Based Cardiac Rehabilitation On Autonomic Function And Neuro-Cardiovascular Stress Reactivity In Coronary Artery Disease Patients., Mark B Badrov, Katelyn N Wood, Sophie Lalande, Carolyn P Sawicki, Lindsay J Borrell, Carly C Barron, Jennifer L Vording, Arlene Fleischhauer, Neville Suskin, Cheri L Mcgowan, J Kevin Shoemaker

Kinesiology Publications

Background Autonomic dysregulation represents a hallmark of coronary artery disease (CAD). Therefore, we investigated the effects of exercise-based cardiac rehabilitation (CR) on autonomic function and neuro-cardiovascular stress reactivity in CAD patients. Methods and Results Twenty-two CAD patients (4 women; 62±8 years) were studied before and following 6 months of aerobic- and resistance-training-based CR. Twenty-two similarly aged, healthy individuals (CTRL; 7 women; 62±11 years) served as controls. We measured blood pressure, muscle sympathetic nerve activity, heart rate, heart rate variability (linear and nonlinear), and cardiovagal (sequence method) and sympathetic (linear relationship between burst incidence and diastolic blood pressure) baroreflex sensitivity during …

Perceptions And Motivation Toward Water Safety And Aquatic Activities In College Students, Jorge Olaves, Ezzeldin R. Aly, Asherah N. B. Allen, Maria Okeke

International Journal of Aquatic Research and Education

As individuals reach adulthood there is a substantial reduction of participation in physical activities. Quality instruction in various physical activities, more specifically aquatics, are beneficial to an individual’s health and career. This current study examined college student’s perceptions and motivations towards the impact of aquatic instruction and water safety skills. Participants included 265 college students between the ages of 19 and 30 years old (n = 147 males, n = 118 females), enrolled in aquatic-related courses at two Historically Black Colleges and Universities (HBCUs). Researchers used a mixed-method approach where the findings indicated that 72% of the participants reported the …

Early Timeline Of Lean Tissue Mass And Strength Improvements In Trained Men Following A High Volume/Frequency Resistance Training Program, Michael H. Thomas, Robert H. Ferguson, Steve P. Burns, Natalie B. Allen

International Journal of Exercise Science

International Journal of Exercise Science 12(4): 1094-1109, 2019. The purpose of this study was to determine the early timeline effect of a systemic high volume/frequency resistance training intervention on lean tissue mass and strength in trained men. Twenty-two healthy resistance trained men, age (32.29 ± 9.75 years), training age (9.40 ± 6.18 years) were placed on a 4-week resistance training (RT) intervention with lean mass and strength assessed pre, mid, and post intervention. RT consisted of 6 exercises: flat smith chest press, pull ups, triceps pushdowns, dumbbell bicep curls, leg press or walking lunges, and standing calf raises, completing 5 …

Comparison Of Body Composition Prediction Equations With Air Displacement Plethysmography In Overweight And Obese Caucasian Males., Carley A. Shannon, Justin R. Brown, Andrew T. Del Pozzi

International Journal of Exercise Science

Body mass index (BMI) has been used for years by clinicians to approximate total body fat. However, the body adiposity index (BAI), body adiposity index from the FELS longitudinal study (BAIFELS), and an equation developed by Deurenberg et al. (BFD) were created recently to offset BMI’s limitations and accurately estimate percent body fat (%BF). The prevalence of overweight and obese Caucasian men is increasing in the United States; currently, there is no established way to quickly and accurately predict their %BF. Purpose: To compare the existing %BF equations (BAI, BAIFELS, and BFD) to measured %BF via air displacement plethysmography (ADP) …

Walking For Health During Pregnancy: A Literature Review And Considerations For Future Research, Christopher P. Connelly, Scott A. Conger, Alexander H.K. Montoye, Mallory R. Marshall, Rebecca A. Schlaff, Sylvia E. Badon, James M. Pivarnik

Kinesiology Faculty Publications and Presentations

Walking is the most commonly chosen type of physical activity (PA) during pregnancy and provides several health benefits to both mother and child. National initiatives have promoted the importance of walking in general, but little emphasis is directed toward pregnant women, the majority of whom are insufficiently active. Pregnant women face a variety of dynamic barriers to a physically active lifestyle, some of which are more commonly experienced during specific times throughout the pregnancy experience. Walking is unique in that it appears resistant to a number of these barriers that limit other types of PA participation, and it can be …

The Effects Of Therapeutic Riding On Social Skills And Sensory Functioning In Children With Autism, Betsy Donahoe-Fillmore, Mary Insana Fisher, Christy Lee, Jordan Bevins, Cristin Carter, Stephanie Dailey, Kelsey Haynes, Allison Richard, Sarah Soboslay

Physical Therapy Faculty Publications

Purpose and Significance: Therapeutic riding (TR) is equine-assisted riding lessons that are adapted for people with a wide variety of impairments and is often used as an adjunct to traditional therapies. Previous research has shown that TR helped to improve sensory functioning, cognition and social skills in children with Autism Spectrum Disorder (ASD) but sessions have typically been for 10-12 weeks. The purpose of this study was to investigate if social skills and sensory functioning improved after only 8 weeks of TR.

Subjects: Children were recruited from a local TR center. Participants included seven children (5M, 2F) with a diagnosis …

Water Entry Impact Dynamics Of Diving Birds, Saburel I. Sharker, Sean Holekamp, Mohammad M. Mansoor, Tadd T. Truscott

Biology Faculty Publications

Some seabirds (such as northern gannets and brown boobies) can dive from heights as high as 30 m reaching speeds of up to 24 m s−1 as they impact the water surface. The physical geometry of plunge diving birds, particularly of the beak, allows them to limit high impact forces compared to non-diving birds. Numerically simulated data for one species (northern gannet) provides some insight into the impact forces experienced during diving, however, no reliable experimental data with real bird geometries exist for comparison purposes. This study utilizes eleven 3D printed diving bird models of three types of birds: plunge-diving …

Association Of Fish Oil And Physical Activity On Mobility Disability In Older Adults, Anoop T. Balachandran

Publications and Research

Purpose: This study aimed to examine whether long-term fish oil (FO) supplementation is associated with a lower risk of mobility disability and enhances benefits of physical activity (PA). Methods: A total of 1635 sedentary adults age 70 to 89 yr from the Lifestyle Interventions and Independence for Elders single-blinded randomized,multicenter clinical trial, which compared a structured PA program to a health education program. Primary outcome was incident major mobility disability (MMD), defined by loss of ability to walk 400 m, measured every 6 months for an average of 2.6 yr. Secondary outcomes included persistent mobility disability, Short Physical Performance Battery, …

The Assessment Of Swimming And Survival Skills: Is Your Programme Fit For Its Purpose?, Paolo Di Paola

International Journal of Aquatic Research and Education

Assessment of swimming and survival skills is a crucial part of any swimming and lifesaving programme. Unfortunately, quite often, it is also the weakest part of the programme itself. Inadequate skills assessment and verification might lead to ineffective skills acquisition and development, to a false sense of safety and over confidence in the water that can be extremely dangerous. Assessor experience and observation skills, assessment methodology, and criteria are all closely inter-linked and their interaction will somehow determine the assessment outcomes. Our paper analyses some of the current issues in these areas of the assessment process, such as assessor’s lack …

First Responders' Narratives Of Drowning: Perceptions Of Family And Community Impacts And Policy Implications, John Wells Phd, Michael Bergin Phd, John Connolly B.Ed., Ma In Ed., Suzanne Denieffe Phd

International Journal of Aquatic Research and Education

This is an exploratory study of the impacts of drowning death on local communities and families in the Republic of Ireland as perceived by first responders. The impact of a death may be particularly stressful. The identified population of interest were members of the Garda and first responders from Community Rescue Boats Ireland. The principal data collection method was one-to-one narrative interviews followed by a focus group. Questioning involved asking interviewees to talk about specific events rather than providing general opinions. Community identity was a source of impact, an urban or rural setting was a significant factor, social media was …