Kinesiology Commons^™

Efficacy Of A Motivational Video On Heart Rate, Rpe, And Total Work Performed During Stationary Cycling, Hannah Angelella

Undergraduate Theses and Capstone Projects

Sedentary lifestyles are a very common way of life for 21st century Americans. Lack of enjoyment and motivation are two common factors that deter people from engaging in physical activity and exercise on a regular basis (1). However, it has been found that visual stimulation may help motivate or distract from exertion (2–4). The purpose of this study was to compare the effects of watching a motivational video (Tour de France (MV)) versus a calming video (Bob Ross painting (PV)) while cycling. Ten recreationally active subjects from the University of Lynchburg staff, faculty, and student population partook in a within-subjects …

Early And Late Rapid Torque Characteristics And Select Physiological Correlates In Middle-Aged And Older Males, Alex A. Olmos, Matthew T. Stratton, Phuong L. Ha, Benjamin E. Dalton, Trisha Vandusseldorp, Gerald Mangine, Yuri Feito, Micah J. Poisal, Joshua A. Jones, Tyler M. Smith, Garrett Hester

Faculty Articles

Purpose

The purpose of this study was to compare early and late rapid torque parameters of the plantar flexors (PFs) in middle-aged (MM) and older (OM) males, and determine the effect of normalization to peak torque (PT) and muscle cross-sectional area (CSA).

Methods

Twenty-nine healthy, MM (n = 14; 45 ± 2 yrs) and OM (n = 15; 65 ± 3 yrs) performed rapid, maximal isometric contractions of the PFs. PT, as well as rate of torque development and impulse during the early (0–50 ms; RTD_0-50, IMP_0-50) and late (100–200 ms; RTD_100-200, IMP_{100-200 …}

An Investigation Of The Effect Of Chewing On Rhythmic Motor Tasks, Brittany S. Samulski

Rehabilitation Sciences Theses & Dissertations

Chewing gum and walking has traditionally been cited as the quintessentially difficult dual task, but little is known regarding chewing effects on motor control. The aims of this dissertation include describing chewing patterns across adulthood, describing chewing’s influence on secondary motor tasks, and investigate entrainment patterns of chewing and gait per established patterns of coupled oscillators. Three experiments were conducted to describe chewing patterns and to examine the effect chewing has on other motor tasks, particularly walking, in young and old adults. The first experiment used a metronome to manipulate chewing rates and measured associated gait parameters. This experiment established …

Lipoprotein Discordance: Associations With Diabetes, Metabolic Syndrome, And Response To Exercise, Jonathan Joseph Pulama Kupaianaha Ruiz-Ramie

Theses and Dissertations

Purpose: To compare baseline CVD risk factor profiles among groups of individuals with discordant levels of high- and low-density lipoprotein cholesterol (HDL-C and LDL-C respectively) compared to lipoprotein particle concentration (HDL-P and LDL-P respectively) and examine the associations between lipoprotein discordance and incident type 2 diabetes mellitus (T2D) and metabolic syndrome (MetS). Furthermore, to examine the association between lipoprotein discordance and exercise induced changes in CVD risk factors.

Methods: Standard lipid panels as well as lipoprotein subclass profiles via nuclear magnetic resonance spectroscopy were measured among three previously completed studies (CARDIA cohort, HERITAGE Family Study, and HART-D study) spanning over …

Piloting A Smartphone-Based Sedentary Behavior Reduction Intervention For Adults With Overweight Or Obesity: Take A Stand 4 Health, Chelsea Larsen

Theses and Dissertations

INTRODUCTION: Previous studies have shown a relationship between sedentary behavior as an independent and novel risk factor for high blood pressure. However, most of the evidence comes from cross-sectional and experimental studies, with only a few studies examining whether blood pressure is improved in individuals participating in a behavioral intervention. None of these studies utilized mHealth approaches, which hold potential for behavioral interventions, and none have focused on individuals with hypertension as a part of their target population. Therefore, the purpose of the dissertation was to 1) Examine the efficacy of a smartphone-mediated multi-component sedentary behavior reduction intervention for individuals …

Kinematic Analyses Of Parkour Landings From As High As 2.7 Meters, Boyi Dai, Jacob S. Layer, Taylour J. Hinshaw, Ross F. Cook, Janet S. Dufek

Integrated Health Sciences Faculty Research

During landing tasks, forces and moments are generated by the musculoskeletal system at surface contact to progressively decelerate the velocity of the body (Dufek and Bates, 1990; McNitt-Gray, 1993). When landing after a forward jump, the body’s downward velocity must be decelerated by an upward acceleration, while its forward velocity needs to be decelerated by a backward acceleration. Inappropriate landing patterns can cause excessive loading to the body, resulting in musculoskeletal injuries. The anterior cruciate ligament is commonly injured by abnormal landing patterns during athletic activities (Dai et al., 2015b; Krosshaug et al., 2007). Military training also involves jump-landing tasks …

The Impact Of Aspirin Intake On Lactate Dehydrogenase, Arterial Stiffness, And Oxidative Stress During High-Intensity Exercise: A Pilot Study, Sang-Ho Lee, Elizabeth J. Pekas, Seungyong Lee, Ronald Headid Iii, Song-Young Park

Health and Kinesiology Faculty Publications

Aspirin is a common nonsteroidal anti-inflammatory drug used to reduce fever, pain, and inflammation. However, aspirin's anti-inflammatory properties may also prevent increased levels of blood lactate dehydrogenase, vascular arterial stiffness and oxidative stress induced by high-intensity exercise. The purpose of this study was to investigate the effects of 4 weeks of aspirin supplementation on lactate dehydrogenase activity, lactate, arterial stiffness, and antioxidant capacity during high-intensity exercise in Taekwondo athletes. Participants were randomly divided into two groups: aspirin supplementation (n = 10) and placebo-control (n = 10). Blood levels of lactate dehydrogenase (LDH) enzyme activity and lactate were assessed to examine …

The Perceived Effectiveness Of Autonomy-Supportive And Controlling Coaching Styles, Kayla Love

Theses and Dissertations

Objective: The purpose of this study is to determine how collegiate athletes perceive their coach’s behaviors and if there are differences in the perceived effectiveness of autonomy-supportive and controlling coaching styles.

Method: A cluster analysis was conducted among collegiate athletes (N = 306) from the Midwest portion of the United States. The athletes were given questionnaires to report on perceived autonomy-support and control exhibited by their coach, as well as the perceived effectiveness of their coach in terms of confidence in their coach.

Results: Preliminary analyses found that autonomy support was positively related to confidence in the coach, whereas controlling …

Loading Rate Has Little Influence On Tendon Fascicle Mechanics, Michael V. Rosario, Thomas J. Roberts

Biology Faculty Publications

Mechanically, tendons behave like springs and store energy by stretching in proportion to applied stress. This relationship is potentially modified by the rate at which stress is applied, a phenomenon known as viscosity. Viscoelasticity, the combined effects of elasticity and viscosity, can affect maximum strain, the amount of stored energy, and the proportion of energy recovered (resilience). Previous studies of tendons have investigated the functional effects of viscoelasticity, but not at the intermediate durations of loading that are known to occur in fast locomotor events. In this study, we isolated tendon fascicles from rat tails and performed force-controlled tensile tests …

The Effects Of Exercise On Mental Health, Xavier A. Pinex

Honors Thesis

Exercise is an extremely important aspect towards positive mental health. Multiple studies have been done previously that show one benefit or another that exercise has towards mental health, but previously there had been no attempt to summarize the findings of these studies. The benefits that exercise has to an individual’s mental health are numerous, but despite this exercise is an underutilized tool in the quest for better mental health. There are many variables that affect the benefits of exercise to an individual’s mental health and it is important to understand all these variables to understand how to properly exercise to …

Hemodynamic Effects Of Graston Technique On Trigger Points In The Upper Trapezius In Patients With Neck Pain, Hannah Harris

Theses and Dissertations

Background: Non-specific neck pain (NS-NP) is defined as neck pain without a specific diagnosis with varying causes such as poor posture, occupational stressors, and muscular trigger points. Individuals often present with poor posture, including forward head and rounded shoulders. In this position, the upper trapezius muscle becomes tight due to sustained muscle activity leading to trigger points as a result of decreased oxygen to the muscle. Graston Technique® (GT) is a form of manual therapy that uses stainless steel instruments to break down tissue adhesions. GT on trigger points has been presumed to increase local blood flow leading to tissue …

Effects Of Footedness And Stance Asymmetry Confirm An Inter-Leg Metastable Coordination Dynamics Of Standing Posture, Steven J. Harrison, Jeffrey M. Kinsella-Shaw, Dobromir Dotov

Journal Articles

We investigated the patterns of coordination between the left and right legs that support the task of maintaining an upright standing posture. We used cross-wavelet analyses to assess coordination between the centers of pressure under the left and right feet. We recruited participants with a lateralized functional preference for their right leg, and we manipulated whether these participants stood with symmetric/asymmetric stances and whether their eyes were open or closed. Our hypotheses were derived from the Haken-Kelso-Bunz (HKB) model of interlimb coordination dynamics. Consistent with HKB model predictions, we observed (1) coordination taking the form of metastable, transient epochs of …

Analysis Of The Activation Of Upper Extremity Muscles During Various Chest Press Modalities, Jamison Christian, Sydney Gothart, Harrison Graham, Katelyn Barganier

Research Horizons Day Posters

No abstract provided.

Sprint Speed And Musculoskeletal Fitness Test Performance In Youth, Brittany Nicole Walleck

Theses and Dissertations

Sprint speed is a common focus of adult strength and conditioning programming and research. However, the links between sprint speed and other tests of musculoskeletal performance have not been extensively studied in youth. PURPOSE: To investigate the relationship between sprint speed and tests of jumping performance, muscular strength/endurance, agility, and anaerobic capacity in children and adolescents. METHODS: The analysis included 402 boys and 148 girls (ages 7 to 18 years) participating in a baseline musculoskeletal fitness evaluation. Sprint speed was assessed via a 10-yard and 20-yard sprint. Agility and anaerobic capacity were assessed via the pro-agility and 200-yard shuttle run, …

A Modified Lean And Release Technique To Emphasize Response Inhibition And Action Selection In Reactive Balance, David A.E. Bolton, Manhoud Mansour

Kinesiology and Health Science Faculty Publications

Assessment of reactive balance traditionally imposes some type of perturbation to upright stance or gait followed by measurement of the resultant corrective behavior. These measures include muscle responses, limb movements, ground reaction forces, and even direct neurophysiological measures such as electroencephalography. Using this approach, researchers and clinicians can infer some basic principles regarding how the nervous system controls balance to avoid a fall. One limitation with the way in which these assessments are currently used is that they heavily emphasize reflexive actions without any need to revise automatic postural reactions. Such an exclusive focus on these highly stereotypical reactions would …

The Design And Development Of A Wrist-Hand Orthosis, Amber Gatto

USF Tampa Graduate Theses and Dissertations

Individuals with an incomplete C5-C7 spinal cord injury (SCI) lose grasping abilities but wrist function is almost universally retained. Most rehabilitation techniques apply the tenodesis effect, however, current tenodesis wrist-hand orthoses (WHOs) engage only the thumb and index finger, meaning that only 20% of activities of daily living (ADLs) can be completed.

This study tested the feasibility of a student-designed powered WHO by testing the device on healthy subjects to see if they could complete a variety of ADLs. A simulation software was then used to analyze wrist, thumb, and index finger joint angles. Additionally, an Assistive Technology Survey was …

The Unique Demands Of Playing Posture On Youth Violinists And Violists, Liam Carroll

Honors Program: Senior Projects (Public)

The high prevalence of performing arts injuries is an acknowledged challenge facing the performing arts medicine community. The injuries seem to affect string players the most among orchestral musicians, specifically violinists and violists. The asymmetrical posture, head and neck displacement, and spinal displacement required by the posture to play violin and viola can lead to discomfort or injury in the performer. Performance related musculoskeletal disorders (PRMDs) can have an adverse impact on the life of a musician, preventing them from performing or making it uncomfortable. While there is a large body of research on PRMDs relating to adult musicians, there …

Association Of Drowning Mortality With Preventive Interventions: A Quarter Of A Million Deaths Evaluation In Brazil, David Szpilman, Danielli B. Mello, Ana Catarina Queiroga, Rogerio Ferreira Emygdio Rfe

International Journal of Aquatic Research and Education

In 2015, drowning in Brazil was responsible for 6,043 deaths and was the second leading cause of death in children. Although several prevention strategies have been promoted to reduce drowning, most are still based on low levels of evidence. This study evaluated the effectiveness of prevention and water safety interventions in reducing drowning mortality. Data obtained from the National Mortality System for 36 years were split in two time periods to allow the comparison of drowning mortality numbers before and after implementation of SOBRASA’s drowning prevention and water safety programs and to check for any positive effects attributable to such …

A Comparative Analysis Of Army Body Composition Standards For U.S. Army Recruits, Adam Garrett Tedford

Student Theses and Dissertations

PURPOSE: to determine if there were comparable differences using air plethysmography and skinfold measurements to the U.S. Army standard means of measuring BF%. METHODS: BF% was measured in 27 women (21.5 ± 1.8 years) using: 7-site skinfold, air plethysmography, and Army Body Composition (ABC) measurements. The Initial Physical Fitness Test (IPFT) was used to determine if participants met the criteria required for admittance into basic combat training. RESULTS: Pairwise comparisons revealed that the BF% estimate for ABC was 7.05 ± 1.11 % higher compared to skinfold (p < .001). The air plethysmography method (26.9 ± 8.4 %) yielded statistically higher (p < .001) BF% compared to skinfold. Of the 27 total participants, 4 (14.8%) passed IPFT but failed the ABC. CONCLUSION: Primary findings suggest that use of the ABC method for measuring body composition of females overestimated BF% when air plethysmography was used as criterion measure.

Vasodilatory And Vascular Mitochondrial Respiratory Function With Advancing Age: Evidence Of A Free Radically Mediated Link In The Human Vasculature, Soung Hun Park, Oh-Sung Kwon, Song-Young Park, Joshua C. Weavil, Jay R. Hydren, Van Reese, Robert H. I. Andtbacka, John R. Hyngstrom, Russell S. Richardson

Health and Kinesiology Faculty Publications

Recognizing the age-related decline in skeletal muscle feed artery (SMFA) vasodilatory function, this study examined the link between vasodilatory and mitochondrial respiratory function in the human vasculature. Twenty-four SMFAs were harvested from young (35 ± 6 yr, n = 9) and old (71 ± 9 yr, n = 15) subjects. Vasodilation in SMFAs was assessed, by pressure myography, in response to flow-induced shear stress, acetylcholine (ACh), and sodium nitroprusside (SNP) while mitochondrial respiration was measured, by respirometry, in permeabilized SMFAs. Endothelium-dependent vasodilation was significantly attenuated in the old, induced by both flow (young: 92 ± 3, old: 45 ± 4%) …