Kinesiology Commons^™

The Impact Of Flexibility On Balance In Rifle Athletes, Ileia Nagelkirk

Williams Honors College, Honors Research Projects

Research has shown that there may be a connection between flexibility and balance when evaluating fall risk in older adults and flexibility’s effect on a balance test (Emilio, Hita-Contreras, Jiménez-Lara, Latorre-Román, & Martínez-Amat, 2014); Overmoyer & Reiser, (2015). Balance is an important component of many sport movements, and has been shown to be particularly important in shooting performance in both novice and Olympic rifle athletes (Mononen, Konttinen, Viitasalo, Era, 2007; Ball, Best, Wrigley, 2003). The purpose of this study was to find if there was a relationship between a rifle athlete’s flexibility and their balance ability, to determine if flexibility …

Nutritional Content Of Mississippi Child Care Centers Participating In The Child And Adult Care Food Program: 1995 To 2019, Katelyn Marie Inserra

Honors Theses

Childhood obesity rates are increasing in the United States and the condition is more prevalent in the Southeast than in other areas of the country. Children who are obese or overweight during childhood have a much higher chance of remaining overweight throughout their lives, and the best way to combat child obesity is through influencing young children’s nutrition patterns. Many children spend a significant amount of time in childcare outside of their home, which may be responsible for providing adequate nutrition for at least two meals per day. This study evaluated the menus of Mississippi childcare centers participating in the …

Evaluation Of Acft Scores In Army Rotc Cadets, Calvin Britt

Theses and Dissertations

The purpose of this study was to evaluate the Army Combat Fitness Test (ACFT) and Army Physical Fitness Test (APFT) in U.S. Army Reserve Officer Training Corp (ROTC) cadets. Eighteen ROTC cadets volunteered to participate in the study (age; 21.9±3.4 years, height; 67.9 ± 3.1 in, weight; 165.3 ± 22.9 lbs., body fat percentage [BF%]; 16.3±7.4%). All participants performed two separate test sessions (APFT & ACFT) seven days apart, at the same time of day. Physiological data was collected for the ACFT using a Zephyr BioHarness monitoring device which included: physiological load (PL), physiological intensity (PI), maximal heart rate (MHR), …

Effects Of Different Dual Tasking Modalities On The Standing Balance Performance Of College Students, John Patrick Manning

Graduate Research Theses & Dissertations

Center of pressure (CoP) and related-metrics are widely accepted indicators of balance performance. Traditional indices of balance performance (e.g. sway area) have been seen as incapable of fully characterizing CoP dynamics, therefore newer measures have been used in contemporary literature to characterize regularity, complexity, and dimensionality of CoP signals. A popular method of increasing standing task difficulty is through the addition of a cognitive task, referred to as dual-task. PURPOSE: The present study sought to investigate the potential of a hierarchical attentional difficulty within the dual-task paradigm and to propose way to order those difficulties by examining differences in static …

Television Viewing And Markers Of Physical Fitness And Body Composition In College-Aged Students, James Peterson

Graduate Research Theses & Dissertations

Television viewing is one of the most popular sedentary activities in America. Sedentary behavior has been linked to increased risk of obesity, hypertension, cardiovascular disease, and all-cause mortalities. While many studies have focused on associations in children and middle aged to older adults, there is a dearth of literature regarding young college aged students. PURPOSE: The purpose of this study was to examine the association between daily television screen time viewing and markers of physical fitness and body composition in young college aged students. METHODS: The sample population consisted of 141 Northern Illinois University young college aged students. Subjects completed …

Ultrasound Measures Of The Abdominal Wall In Patients With Low Back Pain Before And After An 8-Week Lumbar Stabilization Exercise Program, And Their Association With Clinical Outcomes, Christian Larivière, Sharon M. Henry, Dany H. Gagnon, Richard Preuss, Jean-Pierre Dumas

Études primaires

Background

Lumbar stabilization exercise programs (LSEPs) act positively on clinical outcome measures in patients with low back pain (LBP), but the underlying mechanisms are not well understood. Among the various neuromuscular mechanisms, a good candidate is better activation of the abdominal wall, as measured with rehabilitative ultrasound imaging (RUSI).

Objectives

To determine whether RUSI measures are (1) sensitive to LBP status and treatment (LSEP) and (2) correlate with clinical outcomes following the LSEP.

Design

An exploratory one-arm clinical trial with healthy participants as a control group.

Setting

LSEP was delivered in a clinical setting; outcomes were measured in a laboratory …

Predictors Of Resilience Among Infants At Risk For Rapid Weight Gain, Alison K. Ventura, Kristen Thompson

Kinesiology and Public Health

Objective: The study objective was to investigate factors associated with resilience to rapid weight gain (RWG) among predominantly bottle-fed infants.

Methods: Data came from 1,353 mothers who participated in the Infant Feeding Practices Study 2. Mothers completed a prenatal questionnaire and monthly surveys of infant feeding and growth between birth and 12 months. Infants were classified as resilient if they were predominantly bottle fed but did not exhibit RWG between birth and the latter half of infancy (≥ +0.67 change in weight-for-age z score).

Results: Thirty-five percent of the sample (n = 467) was predominantly bottle fed but did …

Ultrasound Measured Flexor Muscle Thickness In The Forearms Of Rock Climbers, Michael Marsala

Electronic Theses and Dissertations

PURPOSE: To examine differences in the forearms of rock climbers using ultrasound to measure the muscle thickness of the finger flexors. METHODS: A total of 33 participants were recruited, 22 climbers (22.23 years; 68% male) and 11 controls (21.8; 55% male). Climbers provided self-reported ratings of their climbing ability, skill level, and preferred mode of climbing (e.g. sport climbing vs. bouldering). Anthropometric measures, including body fat percentage, were measured in all participants. Ultrasound measurements were taken with the participant lying on their back on a padded table with their dominant hand supinated. Muscle thickness measurements were taken at the forearm …

The Effect Of Interval Intensity On Time To Exhaustion During High Intensity Interval Training (Hiit) Running In Recreational Male Runners, Andrew M. Hahn

Cal Poly Humboldt theses and projects

High Intensity Interval Training (HIIT) has become extremely popular in recent years, however, current HIIT prescriptions lack guidelines regarding interval intensities and associated margins. The purpose of this study is to investigate Run Time to Exhaustion (Te) and provide insight regarding HIIT intensities for future aerobic exercise programming. Ten healthy adult male recreational runners (Age=22.9 ± 2.5 yr., Ht=1.72 ± 0.1m, BM=74.1 ± 7.4 kg) measured maximal oxygen consumption (VO2max) (52.4 ± 6.1ml/kg/min) with a graded exercise test (GXT). Running speed was determined using ACSM running equation for exercise metabolism. Protocols 1-3 were HIIT running sessions, and Protocol 4 was …

Application Of The Predicted Repetitions-To-Failure Perceived Exertion Scale For The Nfl-225lb Bench Press Test, Anthony G. Ratto

Cal Poly Humboldt theses and projects

PURPOSE: To assess how accurately Division II NCAA football players can predict repetitions-to-failure (RTF) during the bench press exercise using an absolute load of 225-lbs by comparing predicted repetitions-to-failure with actual repetitions-to-failure. METHODS: Twenty football players (age 20 ± 2 years; height 1.85 ± .06 m; weight 110.1 ± 19.3 kg) without muscular or skeletal injuries were tested for their 1repetition maximum (1-RM) in the bench press, and then performed 1 set to concentric failure with 225-lbs. Subjects predicted how many repetitions they could perform after the warm-up and again after the fourth, eighth, twelfth repetitions. A general regression analysis …

Ankle-Knee Initial Contact Angle And Latency Period To Maximum Angle Are Affected By Prolonged Run, Sydni Wilhoite Ms

College of Graduate Studies: Theses & Dissertations

INTRODUCTION: The angle experienced at initial contact and midstance have been suggested to influence the risk of injury. Previous literature has not assessed these angles under the influence of novel footwear for a non-exhaustive prolonged run or the relationship between the angles. PURPOSE: The purpose of this study was to assess the change of lower extremity kinematic parameters and the relationship between kinematic parameters at initial contact and midstance with prolonged running under the influence of different types of footwear. METHODS: The participants included 12 experienced, recreational runners (6 male; 6 female; 24.8 ± 8.4 years; 70.5 ± 9.3 kg; …

Player-Coach Perceptions Of Internal Load, Exertion, And Recovery In Collegiate Male Soccer Players, Michelle L. Eisenman

College of Graduate Studies: Theses & Dissertations

Periodization of athlete training load to improve performance and maximize recovery, while reducing injuries and overtraining, is essential in team sports. Understanding internal load responses and monitoring athlete exertion and recovery can help coaches during a competitive season. Recovery Status (PRS) and Rating of Perceived Exertion (RPE) are two subjective scales used to help quantify training load and recovery. These scales are more useful if there is an agreement between coaches (C) and players (P) assessment of intensity and recovery. PURPOSE: To assess subjective measures (PRS and RPE scores) from P and C during a 13-week competitive soccer season. Furthermore, …

Does Exercise Impact Gut Microbiota Composition In Men Receiving Androgen Deprivation Therapy For Prostate Cancer? A Single-Blinded, Two-Armed, Randomised Controlled Trial, Robert U. Newton, Claus T. Christophersen, Ciaran M. Fairman, Nicolas H. Hart, Dennis R. Taaffe, David Broadhurst, Amanda Devine, Raphael Chee, Colin I. Tang, Nigel Spry, Daniel A. Galvão

Research outputs 2014 to 2021

Introduction: A potential link exists between prostate cancer (PCa) disease and treatment and increased inflammatory levels from gut dysbiosis. This study aims to examine if exercise favourably alters gut microbiota in men receiving androgen deprivation therapy (ADT) for PCa. Specifically, this study will explore whether: (1) exercise improves the composition of gut microbiota and increases the abundance of bacteria associated with health promotion and (2) whether gut health correlates with favourable inflammatory status, bowel function, continence and nausea among patients participating in the exercise intervention.

Methods and analysis: A single-blinded, two-armed, randomised controlled trial will explore the influence of a …

The Effects Of Acute Exercise Intensity On Episodic Memory And False Memory, Emma Kate Dilley

Honors Theses

Previous experimental work demonstrates that acute exercise may enhance episodic memory performance. However, limited research has examined the extent to which acute exercise influences false memory production, and no studies, to date, have examined whether there is an intensity-specific effect of acute exercise and true and false memories. Thus, the present experiment evaluated the effects of acute exercise on episodic memory and false memory. A three-arm, parallel, between-group randomized controlled trial was employed, with participants (Mage = 20.8 years) randomized into a moderate-intensity exercise group (15-minute bout of treadmill exercise at 50% Heart Rate Reserve; N = 20), a high-intensity …

Contralateral Repeated Bout Effect Of The Elbow Flexors Not Observed In Young Women, Bailey Brown

Honors Theses

The contralateral repeated bout effect (CL-RBE) is known as a protective effect in which an initial bout of eccentric exercise reduces muscle damage in the contralateral limb after a similar bout of eccentric exercise. To our knowledge, previous studies on CL-RBE only recruited males or a mixture of both sexes. PURPOSE: To investigate the presence of the CL-RBE of the elbow flexors in women. METHODS: Twelve healthy women (20.9 ± 2.5 years) performed two bouts of 45 maximal eccentric contractions (ECC) of the elbow flexors using the opposite arm separated by 14 days. The isokinetic muscle strength (60°/sec) was measured …

An Evaluation Of Induced Shear Stress On Endothelial Cellular Adhesion Molecules, Edward B. Crabb

Theses and Dissertations

The pathophysiology of atherosclerotic cardiovascular disease (CVD) is highlighted by vascular dysfunction and low-grade vascular inflammation. Furthermore, the site-specific distribution of atherosclerosis throughout the arterial vasculature is primarily determined by local hemodynamic force. Therefore, this dissertation outlines three experiments designed to investigate the role of acute mental and physical (i.e., aerobic exercise), and vascular wall shear stress (SS) on the inflammatory aspects of atherosclerosis. Chapter 2 examines the effect of acute laboratory-induced mental stress on intracellular pro-inflammatory signaling pathways in peripheral blood mononuclear cells. Chapter 3 investigates the impact of acute laboratory-induced mental stress and maximal aerobic exercise on the …

Incidence Of Responders Vs Non-Responders With Sprint Interval Training, Kyle Schulhauser

Theses and Dissertations (Comprehensive)

The current study examined the incidence of non-response to a traditional 30:240 s sprint interval training (SIT) protocol, as well as for 2 modified SIT protocols of 15:120 s, and 5:40 s over 4 wk of training in 84 recreationally active males and females (52m, 32f). Pre- and post- testing measures included: aerobic capacity (V̇O_2max), aerobic performance (5-km time trial), and anaerobic capacity (30 s sprint). Non-response was determined using 2x typical error for each variable. Chi square analysis indicated a significant difference (P = 0.032) in the frequency of non-responders for aerobic performance where the 30:240 group …

The Effect Of Loading Rate On Annulus Fibrosus Strength Following Endplate Fracture, John Mcmorran

Theses and Dissertations (Comprehensive)

Low back pain is the most prevalent cause of chronic pain for North Americans, and its correlation with endplate damage, and deficient mechanical properties in the annulus fibrosus (AF) makes this injury particularly concerning. To date, biomechanical alterations in the AF following endplate fracture have not been well described. Owing to the AF’s collagenous composition, and the intrinsic biomechanics of intervertebral discs (IVDs) during compression, it was hypothesized that the mechanical properties of AF specimens would show rate-dependent alterations in their tensile and adhesive strengths following endplate fracture. The purpose of the present study was to quantify the mechanical properties …

Exploring Psychological Readiness To Return To Sport After Injury, Scott Donald

Theses and Dissertations (Comprehensive)

Athletes are often cleared to return to sport with little emphasis on psychological readiness in relation to physical readiness. This is important because athletes who are not psychologically ready to return to sport (RTS), despite being physically cleared, may lack motivation to compete and lack confidence in their abilities (Podlog, Banham, Wadey, & Hannon, 2015), drop out of sport, fear re-injury (Ardern et al., 2014), worry about future performance (Podlog & Eklund, 2006), experience anxiety and feel depressed (Tracey, 2003) or incur further injury (McCullough et al., 2012). Remarkably, there is no definition of psychological readiness consistently used in the …

Physical Fatigue Negatively Affects Decision-Making During A Closing-Gap Aperture Crossing Task When Using Joystick-Controlled Locomotion, Natalie Snyder

Theses and Dissertations (Comprehensive)

Goal-direct locomotion is made possible through the integration of sensory input from the visual, vestibular, and somatosensory system. However, changes in collision avoidance behaviours and action capabilities (i.e., affordances) may occur when a sensory conflict is introduced (i.e., via incongruent input from a sensory system). Further, changes to the person (such as physical fatigue) may have negative implications on the cognitive abilities of an individual following physically fatiguing exercise. This in turn could affect an individual’s ability to avoid collisions with objects or other individuals in their environment. Thus, the objective of this thesis was to explore how physical fatigue …

Vers Une Stratégie Intégrée De Prévention En Manutention : Document De Sensibilisation À La Prévention Des Troubles Musculosquelettiques (Tms) Reliés À Des Tâches De Manutention, Denys Denis, Edith Vinet

Guides

Destiné à tous les intervenants et les milieux de travail préoccupés par la prévention des troubles musculosquelettiques (TMS) reliés à des tâches de manutention, ce document propose une stratégie intégrée de prévention en manutention.

Combinant formation et intervention, cette stratégie repose sur la compréhension, l’observation et l’analyse de cinq principes d’action. Ces principes d’action sont les points communs de l’ensemble des techniques de manutention qu’utilisent les travailleurs. Chacun d’eux possède des repères d’observation caractéristiques. Les repères indiquent ainsi les compromis que le travailleur doit faire pour atteindre son objectif de préserver sa santé et sa sécurité, puisqu’ils sont liés aux …

The Role Of The Midfoot In Drop Landings, Mark T. Olsen, Dustin A. Bruening, A. Wayne Johnson, Sarah T. Ridge

Faculty Publications

Purpose: The midfoot is instrumental to foot function; however, quantifying its roles in human movement has been difficult. A forceful dynamic activity like landing may help elucidate the midfoot’s contribution to foot energetics and function. The main purpose of this study was to measure midtarsal joint kinematics and kinetics during a barefoot single-leg landing task. A secondary aim of this study was to explore the relationship between static foot posture and dynamic midfoot function.

Methods: In a cross-sectional study design, 48 females (age = 20.4 ± 1.8 yr, body mass index = 21.6 ± 1.7 kg/m) performed drop landings from …

Acute Effects Of Ballistic And Non-Ballistic Bench Press On Plyometric Push-Up Performance, David Bodden, Timothy J. Suchomel, Alexandra Lates, Nicholas G. Anagnost, Matthew F. Moran, Christopher Taber

Exercise Science Faculty Publications

The purpose of this study was to examine the effects of a ballistic or non-ballistic concentric-only bench press (COBP) on subsequent plyometric push-up performance. Fourteen resistance trained men completed two separate one-repetition-maximum (1RM) testing sessions followed by three randomized experimental explosive push-up sessions. These sessions combined a heavy concentric bench press with plyometric push-ups. Using a series of 3 × 10 (condition × time) repeated measures ANOVA, comparisons were made between the effects of ballistic and non-ballistic bench presses on performance of plyometric push-ups to investigate push-up performance variables. Compared with the control condition, both ballistic and non-ballistic bench presses …

Intermittent Pneumatic Compression Boot Use Elevates Blood Lactate During Subsequent Exercise, Richard T. Marcello, Lucas Fortini, Beau K. Greer

Exercise Science Faculty Publications

The purpose of the present study was to investigate the influence of intermittent pneumatic compression (IPC) boot use between submaximal cycling trials on heart rate (HR) and blood lactate concentrations. Ten healthy participants (9M; 1F) performed two consecutive 60 minute rides at 60% of functional threshold power with a 30 minute rest between rides. The rest period was spent in a supine position using IPC boots (BOOT) or sitting in a similar position without boots (CON). HRs were collected every 15 minutes during cycling rides, and lactate was measured at the 30-minute mark during both rides. An identical trial was …

The Task At Hand: Fatigue-Associated Changes To Corticospinal Excitability During Writing, Kezia Cinelli

Theses and Dissertations (Comprehensive)

Corticospinal excitability as measured via transcranial magnetic stimulation (TMS) is highly dependent on the task being performed at the time of stimulation. As such, this study sought out to measure corticospinal excitability during the relevant, daily task of writing and compare it to the conventional abduction task often utilized. We used single-pulse motor evoked potentials (MEPs) to provide a measure of corticospinal excitability and cortical silent period (CSP) duration, and paired-pulse conditioned MEPs to assess short-interval intracortical inhibition (SICI) and intracortical facilitation (ICF) recorded from the right first dorsal interosseous (FDI) of 19 participants on two randomized and counter-balanced days. …

Spinal Motor Neuron Excitability During Fatigue, Nathalie Cecire

Theses and Dissertations (Comprehensive)

Fatigue during sustained or repeated muscular contractions can be from contractile failure within the muscle or reduced excitability in the supraspinal and spinal motor neurons. However, spinal motor neurons can also compensate for fatigue. We speculate that one way the spinal motor neuron compensates for fatigue is through an increase in excitability via the activation of persistent inward currents (PIC). In other conditions where there is a reduction in descending drive, such as during spinal cord injury and aging, there are adaptions of the spinal motor neurons to have elevated PIC amplitudes or towards a greater prevalence of PIC, respectively. …

Exploring The Potential Neuromuscular Adaptations Associated With Sprint Interval Training, Samer Hassan

Theses and Dissertations (Comprehensive)

Purpose. The primary purpose of this study was to explore the acute (a single sprint interval training or SIT exercise session) and chronic (3 weeks of SIT) neural adaptations that may occur with the SIT (30 second sprint and 4 minutes of rest).

Methods. 28 recreationally active participants were pseudo-randomized into either a control group (CTRL) or training group (TR) and tested at 4 time points after baseline VO_2max testing. Participants were tested, pre-training/pre-fatigue, pre-training/post-fatigue, post-training/pre-fatigue, post-training/post-fatigue. The fatigue protocol was a SIT session (4 x 30-s sprints). The TR completed a 3-week running SIT protocol (3x/wk) progressing …