Kinesiology Commons^™

Peroneal Reaction Time After Ankle Sprain: A Systematic Review And Meta-Analysis, Matthew C. Hoch, Patrick O. Mckeon

Human Movement Studies & Special Education Faculty Publications

Background: Many studies have examined the temporal response of the peroneal muscles to sudden inversion perturbation in patients with a previous ankle sprain. The purpose of this systematic review with meta-analysis was to synthesize the evidence and determine whether peroneal reaction time (PRT) impairments are present after ankle sprain. Methods: An electronic search was conducted using PubMed Central and EBSCOhost (1965-January 2013). Articles were included if they 1) examined the PRT to sudden inversion perturbation in patients with a history of ankle sprain using a mechanical tilt platform, 2) made comparisons with a control group or contralateral limb with no …

Resiliency And Selfless Service Development In Army Rotc Physical Training: A Qualitative Investigation, Molly Voelz Fischer

LSU Doctoral Dissertations

Leadership in the United States Army is essential for successful completion of domestic and international missions. Reserve Officer Training Corps (ROTC) programs are used to effectively develop leadership skills within the Army. Physical training (PT) is a mandatory component in ROTC, used to improve physical ability and prepare cadets for the rigors of the “big Army” environment. Resiliency and selfless service development are seen as critical elements of leadership, yet little is known about the formal and informal experiences in ROTC PT that facilitate or hinder resiliency and selfless service during early career preparation. The overall purpose of this dissertation …

Administrator Perceptions Of Intramural Coed Flag Football Modifications: A Qualitative Analysis, Zacharias Wood

LSU Master's Theses

Coed sport environments can be paradoxical settings where pre-existing gender biases influence participants’ enjoyment and success. Furthermore, gendered messages and stereotypes as well as low expectations for females within coed sports can create participation barriers by reducing feelings of confidence and performance. Within Campus Recreation, intramural sport administrators have a significant role in determining participation opportunities and experiences. This investigation examined administrators’ perspectives about coed intramural flag football gender modifications. Specifically, three research questions guided this study: (a) how do intramural administrators view coed flag football gender modifications?; (b) to what extent do intramural administrators perceive gender modifications to impact …

The Lived Experiences Of Adult Siblings Of Individuals With Asd, Brianne Redquest

Theses and Dissertations (Comprehensive)

Autism Spectrum Disorders (ASD) are the most prevalent neurological and severe developmental disorder affecting 1 in 88 Canadians, reflecting a 78% increase over the last 6 years (Autism Speaks Canada, 2013). ASD is a lifelong disorder which requires a tremendous amount of support and caregiving from family members. As a result, siblings may have unique experiences associated with having a sibling with ASD. As such, the purpose of this study was to examine the lived experiences of adult siblings of individuals with ASD. The study employed a qualitative methodology, more specifically phenomenology (Patton, 2002). One-on-one semi-structured interviews were conducted with …

Gait Initiation Mechanics In Concussed Varsity Athletes, Adam Harper

Theses and Dissertations (Comprehensive)

Concussions are a common and potentially serious injury that affects athletes across multiple sports. More than ever concussions are now at the forefront of sport-related research.

Current research indicates that in a cohort of Canadian junior hockey players examined during the 2009-2010 season showed a rate of concussion at 36.5% of all athletic injuries (Echlin et al., 2010). This rate of concussion injury indicates that proper evaluations and examination tools are key to successful management of concussions. The objective of this study was to determine whether a functional task such as gait initiation is able to quantify stability difference following …

Methionine Restriction-Induced Metabolic Changes In C57bl6j Mice, Cory Christopher Cortez

LSU Master's Theses

Introduction: Eighty percent restriction of normal dietary methionine (MR) intake has been shown to increase energy expenditure and attenuate the rate of adiposity gain in rodents, despite a paradoxical increase in energy intake. Energy expenditure in rats was shown to increase, even though physical activity level stays the same. This observation suggests that metabolic mechanisms account for the majority of increased energy expenditure measured in methionine restricted animals. Purpose: To observe and document the onset of physiological effects brought about and to determine the mechanistic role of the skeletal muscle on MR-induced metabolic changes in the C57BL6J mouse. Methods: C57BL6J …

The Effects Of Peripheral Nerve Impairments On Postural Control And Mobility Among People With Peripheral Neuropathy, Shuqi Zhang

LSU Doctoral Dissertations

Approximately 20 million Americans are suffering Peripheral Neuropathy (PN). It is estimated that the prevalence of all-cause PN is about 2.4% in the entire adult population, whereas over 8-10% in the population segment over the age of 55 (Martyn & Hughes, 1997). Peripheral Neuropathy leads to a high risk of falling, resulting from the deficits of postural control caused by the impaired peripheral nerves, especially the degenerative somatosensory system. To date, there is no effective medical treatment for the disease but pain managements. The deficits of postural control decrease the life quality of this population. The degeneration of peripheral nerves …

Parental Pressure, Anxiety, And Performance Among Age Group Swimmers, Timothy Michael Dasinger

LSU Master's Theses

Background/Purpose: Parents introduce children to youth sport and can increase a child’s level of enjoyment in the sport. However, parents can also place too much pressure on the child, which can lead to increased pre-competition anxiety and decreased performance (Bois, Lalanne, & Delforge, 2008; Scanlan & Lewthwaite, 1984). The purpose of this study was to examine the relationships among perceived and desired parental pressure, pre-competition state anxiety, subsequent performance, and intention to continue the sport in youth swimmers ages 9-18. Method: A sample of 43 swimmers (17 male, 26 female; M=12.8±2.6 years) on a United States Swimming (USS) sanctioned club …

Can Gravitational Influences Explain Endpoint Precision Between Visual Conditions?, Chelsea Marie Soebbing

LSU Master's Theses

Reaches to remembered target locations often result in different endpoint precision when compared to reaches to actual (seen) targets. Interestingly, errors are observed whether the reach to the remembered location is performed in an environment with or without allocentric cues (visual cues from the environment) available. People tend to point below remembered target locations in the dark relative to normal room lighting while seated, standing, and reaching with a step. In this study we questioned the effect of gravitational influences on upper extremity reaching and pointing accuracy in dark and illuminated environments. We hypothesized that alterations in body orientation would …

The Anti-Inflammatory Effects Of Vitamin D And Exercise, Laura Ann Forney

LSU Doctoral Dissertations

Elevated inflammation is associated with several chronic diseases, including obesity. Exercise is an established effective treatment of this condition by decreasing adiposity and independently regulating inflammatory pathways. The potential for vitamin D to confer anti-inflammatory benefits has been explored in cell culture studies, but few have explored its action at the whole body level. PURPOSE: To investigate the relationship between inflammatory markers in trained and untrained individuals with vitamin D levels either above or below a suggested optimal concentration. METHODS: College-aged females (N = 63), both trained and untrained, reported to the lab four times: to assess body size and …

The Control Of Amplitude And Direction In Bimanual Coordination, Zhujun Pan

LSU Doctoral Dissertations

Spatial coordination of bimanual movements is important when performing daily activities. Whereas, older adults and individuals with Parkinson’s disease (PD) commonly show difficulties in temporally coordinating the hands in bimanual coordination tasks, the effects of aging and Parkinson’s disease on the quality of spatial coordination between the hands are unclear. Thus, the present work investigated the impact of older age and PD on the spatial interference in a bimanual task in which 48 right hand-dominant participants (16 young adults, 16 older adults and 16 individuals with PD) drew simultaneously two lines with both hands with varied movement amplitudes (3 and …

Prevalence And Incidence Rates Are Not The Same: Letter To The Editor, Yuri Feito

Faculty Articles

I recently became aware of an article by Weisenthal et al,² “Injury Rate and Patterns Among CrossFit Athletes,” published in the April 2014 issue of your journal. Considering this is a topic of interest to me, I read the article with great expectations and detail. I commend the authors for their fantastic job, both in their methodology as well as in their interpretation of their findings. They truly did a great job explaining their definition of what constituted an injury, which has been lacking in several studies, as well as providing great recommendations for the “safe” participation in this …

An Analysis Of A University Reclassification Effect On Applications Following A Move To A New Intercollegiate Athletic Association, Dylan P. Williams

LSU Doctoral Dissertations

Scholars have argued that athletics are utilized by universities to advertise their school to all individuals (Collins, 2012; Dwyer, Eddy, Havard, & Braa, 2010; Toma & Cross, 1998; Washington & Ventresca, 2004; Weaver, 2010). Expectedly, university officials are willing to contribute resources in order to develop an effective athletics program to establish an institution’s legitimacy among other universities (Collins, 2012; Toma & Cross, 1998; Washington & Ventresca, 2004). One tactic employed by schools focuses on the process of athletic association reclassification into the National Collegiate Athletic Association (NCAA) from other member associations (e.g., National Association for Intercollegiate Athletics). Officials consider …

The Effects Of Respiratory Muscle Warm-Up On Exercise Performance And Pulmonary Functions, Dennis Jonathan Guillot

LSU Doctoral Dissertations

Effect of a Specific Respiratory Warm-up on Run Performance, Pulmonary Functions, and Rating of Perceived Breathing The purpose of this study was to evaluate the effect of a respiratory warm-up for five minutes using an inspiratory/expiratory (IEC) device on pulmonary function (PFT) (FVC, FEV©û, FEF 25-75%, PEF), rate of perceived exertional (RPE) breathing, and performance time [300 yard shuttle run (300y) and 1.5 mile run (1.5m)] in asthmatics and non-asthmatics. Ten non-asthmatics males (22.6¡¾7.4 years) participated in phase I, twenty non-asthmatic males (24.2¡¾9.8 years) in phase II, and five asthmatics (20.8¡¾3.2 years) in phase III of this study. The Phase …

Changes In Bone Density Following Exercise Training In Older Adults, Matthew Casey Scott

LSU Master's Theses

Abstract Purpose: To determine effects of 8 wks of progressive whole-body training preceded by 4 wks of regional specific (RSTS) or aerobic training (AT), on bone mineral density (BMD). Methods: Subjects were over age 70 y, with a 6-min walk score of 218-490 m. Subjects were randomized to AT or RSTS for the first 4 wks (Phase 1). AT consisted of ~45 min of walking/biking (50-85% HR reserve), 3 d/wk. RSTS consisted of 8 exercises specific to major muscle groups and was performed for 3-5 min, at ~40-70% of max voluntary strength for ~45 min, 3 d/wk. After 4 wks, …

An Exploratory Examination Of Families Engaged In An Adventure Running Kids Program, Heather Isnor

Theses and Dissertations (Comprehensive)

Academics and practitioners have only just begun to delve into the health benefits of outdoor activities in the last few years. In general, the forested settings of these activities have been documented to decrease stress levels, increase recovery rates from disease, and lessen the symptoms of mental illnesses (Kuo & Faber Taylor, 2004). It is believed that the natural environment acts as a setting where humans can engage in physical activity, aesthetic experiences, and social interactions that, in turn, release stress and lead to improved well-being (Bird, 2012). Currently, however, children are experiencing limited exposure to nature and which has …

Effects Of A Heart Rate Variability Biofeedback Intervention On Athletes’ Psychological Responses Following Injury, Andrew S. Rollo Mr.

Theses and Dissertations (Comprehensive)

The purpose of this study was to evaluate the effectiveness of heart rate variability biofeedback (HRV BFB), a form of psychophysiological skills intervention, to improve athletes’ psychological response following an injury. Further, to examine the effects of HRV BFB on self-efficacy, perceived stress and anxiety, pain management, and the psychological responses of injured athletes. HRV BFB effects on athletes’ physiological indices including HRV, HR, and respiration rate were also assessed. Participants were 32 athletes who had sustained a moderate to severe musculoskeletal sports injury, ranging in age from 18 to 36 years (M_age = 20.82, SD = 3.41). …

Quantifying Cognitive Function In Concussed Athletes Before And After Acute Exercise Using A Choice Reaction Time Task, Stephanie A. Ramautar M.Sc., Michael E. Cinelli Ph.D.

Theses and Dissertations (Comprehensive)

Following a concussion, cognitive deficits have been shown to last longer than symptom resolution. Currently clinicians rely heavily on symptom emergence following the fundamental exercises of the return to play (RTP) protocol, which may leave athletes at risk of returning to play too early if cognitive deficits have not been detected. The purpose of this study was to assess the effects of exercise on choice reaction time (CRT) both at rest and following an acute exercise in 3 populations: non-concussed (NC), recently concussed (RC), and post-concussion syndrome (PCS) individuals. A CRT task in the form of an iPad application measured …

Physical Fitness Characteristics Of An Active Firefighter Population Serving An Urban Area, Michael R. Antolini

Theses and Dissertations (Comprehensive)

Firefighters require a high level of physical fitness in order to meet the demands of their profession. While physical fitness testing is required to join the department, firefighters are not subject to further formal exercise testing throughout the duration of their careers. Active, career firefighters were tested on a variety of physical fitness measures related to body composition, strength, power, and endurance over three testing sessions. 49 firefighters (40.5 ± 8.3 yr, 89.5 ± 13.0 kg, 27.8 ± 3.6 kg/m2) were found to have a resting heart rate of 57.7 ± 8.2 bpm, blood pressure of 121.5 ± 11.9/71.5 ± …

Leg Strength And Lean Mass Symmetry Influences Kicking Performance In Australian Football, Nicolas H. Hart, Sophia Nimphius, Tania Spiteri, Robert U. Newton

Research outputs 2014 to 2021

Differential loading patterns during game-based participation may produce or exacerbate strength imbalances between the lower limbs. It is currently unknown whether such imbalances are functionally beneficial or detrimental to performance. This study assessed the influence of lower limb strength and lean mass symmetry on kicking accuracy in Australian Football. Thirty-one Australian footballers were required to perform a kicking assessment, producing ten drop punt kicks over twenty metres to a player target. Athletes were subsequently separated into accurate (n = 15) and inaccurate (n = 16) groups, with lower-body lean mass assessed using whole body DXA scans, and lower-body strength assessed …

Antecedents Of Athletes’ Achievement Goal Orientations, Matthew Lachman

College of Graduate Studies: Theses & Dissertations

Theorized by Nicholls (1984), achievement goal theory describes the interaction of one’s perceived ability and two goal orientations, known as “task” and “ego,” that an athlete employs when setting goals. These goal orientations are what athletes employ when playing their sport. The result of this interaction is an athlete’s achievement behavior. Previous research has examined this theory extensively (Newton & Duda, 1999; Chin, Khoo, & Low, 2012; Smoll, Smith, & Cumming, 2007; White & Zellner, 1996). However, few studies have solely looked at factors that predict one’s achievement goal orientations. The purpose of this study is to address which demographic …

The Effects Of Exercise-Induced Muscle Damage On Aerobic Capacity Tested Through Repeated Vo2max Tests, Luke Burnett

Honors Theses

High-intensity resistance training alongside aerobic training has been seen to improve aerobic performance due to the gains strength that accompany said resistance training. However, it has been documented that the exercise-induced muscle damage (EIMD) that results from the resistance training can impair aerobic performance in the days following. Therefore, the purpose of this study was to assess the time-course of recovery from EIMD for up to seven days following muscle-damaging protocol. Eight recreationally trained participants (age 21.88 ± 0.99 yr., mass 70.02 ± 11.14 kg, height 171.61 ± 8.99 cm) volunteered to participate in five testing sessions over the course …

Effects Of A Ten Week Barbell Deadlift Training Program On Vertical Jump Height In College-Aged Women, Kendra D. Olinghouse, Matt S. Stock, Jacob A. Mota, Elias M. Carrillo, Ibrahim K. Munayer, Jocarol E. Shields, Micheal J. Luera, Brennan J. Thompson

Kinesiology and Health Science Faculty Publications

The barbell deadlift is a large muscle mass exercise that primarily involves extension at the hip and knee joints. Although it is often incorporated into strength training programs with a variety of other exercises (e.g., back squat), no previous studies have examined the effects of deadlift training on strength or power adaptations. The purpose of this investigation was to examine the effects of a ten week barbell deadlift training program on vertical jump height in previously untrained women. Twenty-eight women (mean ± SD age = 22 ± 2 years) were randomly assigned to either the training group (n = 17) …

Relationships Among Maximal And Explosive Strength Production Of The Leg Extensors And Vertical Jump Peak Power Output In Female Youth Volleyball Athletes, Alexander S. Drusch, Jacob A. Mota, Kendra D. Olinghouse, Matt S. Stock, Brennan J. Thompson

Kinesiology and Health Science Faculty Publications

Architectural and physical performance measurements are commonly implemented to identify various physical capacities in many populations. However, previous research has suggested architectural measures, notably in the leg extensors, are ineffective predictors of vertical jumping (VJ) performance. Given the functional relevance of rapid strength development on explosive dynamic tasks, further research is warranted examining, a) the presence of associations of maximal (e.g., peak torque; PT) and, in particular, explosive (e.g., rate of torque development; RTD) strength-related characteristics with jumping performance in the leg extensors, and b) the extent to which PT and RTD either uniquely, or synergistically contribute to VJ performance. …

Shoulder Impingement In Water Polo Players, Kelly A. Davis

Scripps Senior Theses

Water polo is a highly dynamic and physically demanding sport that has heretofore not inspired nearly as much research as other overhead sports such as baseball or swimming. As in almost all overhead sports, water polo puts its players at high risks for shoulder injuries since the motions required to perform the sport at an optimum level push the limits of normal shoulder function.

Human shoulders are inherently unstable as a tradeoff to their flexibility. Because of this instability, many structures are required to work concurrently to keep the shoulder in place. These structures include muscles, ligaments and cartilages. It …

Pedestrian Head Protection During Car To Pedestrian Accidents: In The Event Of Primary Impact With Vehicle And Secondary Impact With Ground, Vishal Gupta

Wayne State University Dissertations

Current regulations for assessing pedestrian safety use a simplified test setup that ignores many real-world factors. In particular, the level of protection is assessed using a free-motion headform impacting the vehicle's hood at a fixed angle. As such, this test setup does not capture the effect due to the vehicle front-end profile, nor does it comprehend injury due to a possible secondary impact of the pedestrian's head with ground. This thesis aims to numerically simulate vehicle to pedestrian crashes to develop knowledge that may suggest ways to improve safety above and beyond the regulatory tests. Inputs to the simulations include …

Linear Progression For Increased External Loads During Strength Training, Jacob A. Mota, Matt S. Stock, Kendra D. Olinghouse, Elias M. Carrillo, Ibrahim K. Munayer, Jocarol E. Shields, Micheal J. Luera, Brennan J. Thompson

Kinesiology and Health Science Faculty Publications

Improvements in muscular strength require an individual to train with progressively increased external loads over time. While it is well documented that the initial adaptations to strength training occur rapidly, previous researchers have not thoroughly examined the most effective means of inducing these changes. The purpose of this study was to examine the ability to add 2.27 kg to the barbell for 20 consecutive training sessions, and to compare these responses between the sexes. Thirty-four subjects ([mean ± SD age = 23 ± 3 years] men, n = 17; women, n = 17) participated in this study. The subjects were …

Leg Lean Mass Adaptations Following Short-Term Barbell Training In Women, Jacob A. Mota, Matt S. Stock, Kendra D. Olinghouse, Alexander S. Drusch, Brennan J. Thompson

Kinesiology and Health Science Faculty Publications

Participations in a resistance training program results in both neural adaptations and increases in lean body mass, the latter of which is considered a slow process. The majority of previous investigations that have examined the time course associated with muscular adaptations have utilized exercise machines or single-joint movements. Furthermore, the adaptations associated with resistance training in women are not as well understood as those for men. The purpose of this investigation was to examine the effects of a four week resistance training intervention on changes in leg lean mass in untrained, college-aged women. Thirty-five women (mean ± SD age = …

Relationships Between Anthropometric And Performance Variables In Youth: Predictors Of Lower-Body Vertical Jump Peak Power, Alexander S. Drusch, Elias M. Carrillo, Jacob Adam Mota, Kendra D. Olinghouse, Matt S. Stock, Marc R. Lochbaum, Brennan J. Thompson

Kinesiology and Health Science Faculty Publications

Anthropometric and physical performance measurements are commonly used for identifying specific physical traits in youth. Laboratory-based tests (e.g., linear velocity transducers), while accurate, provide practical limitations due to high costs and technical necessities. Thus, commonly used field tests may be useful alternatives for assessing fitness/performance characteristics of youth. The purpose of this study was to examine the relationships between anthropometric measures and lower-and upper-body power and strength measures; and to assess the predictive ability of these measures for lower-body vertical jump peak power (PP) output in youth. Thirty-nine pre-adolescent (mean±SD, range: age=7.8±1.7, 5-12 years) children volunteered to participate in this …

Changes In Predicted Muscle Coordination With Subject-Specific Muscle Parameters For Individuals After Stroke, Brian A. Knarr, Darcy S. Reiman, Stuart A. Binder-Macleod, Jill S. Higginson

Journal Articles

Muscle weakness is commonly seen in individuals after stroke, characterized by lower forces during a maximal volitional contraction. Accurate quantification of muscle weakness is paramount when evaluating individual performance and response to after stroke rehabilitation. The objective of this study was to examine the effect of subject-specific muscle force and activation deficits on predicted muscle coordination when using musculoskeletal models for individuals after stroke. Maximum force generating ability and central activation ratio of the paretic plantar flexors, dorsiflexors, and quadriceps muscle groups were obtained using burst superimposition for four individuals after stroke with a range of walking speeds. Two models …