Sports Sciences Commons^™

The Effects Of A Mirror On Cognitive Strategy And Performance Of A Muscular Endurance Task, Brianna M. Simmons

Electronic Theses and Dissertations

Context: Mirrors are common-place in exercise facilities, however, the effect the mirror has on cognitive strategy (i.e., where the mind’s at) and performance time has not been examined in a muscular endurance task (i.e., a wall sit). Objective: To determine, (1) the mirror’s effect on cognitive state during a wall sit to volitional exhaustion, (2) the mirror's effect on time to volitional exhaustion during a wall sit, and (3) the mirror’s effect on the participant’s rating of perceived exertion (RPE) during the wall sit. Design: Repeated measures design. Setting: Indoor exercise facility. Participants: Twenty resistance-trained Georgia Southern University Students (9 …

Humeral Retroversion, Range Of Motion, And Strength Adaptations In Tennis Players, Daniel Hannah

Electronic Theses and Dissertations

Purpose: This study aimed to develop an understanding of humeral retroversion (HRV) asymmetries in tennis players and its impact on physical and performance characteristics of the shoulder.Participants: Healthy tennis players were categorized into 3 groups: younger juniors (n=11, age=14.5±0.5 years), older juniors (n=12, age=17.1±0.9 years), and collegiate (n=16, age=19.6±1.2 years). Methods: HRV, internal rotation (IR), and external rotation (ER), total arc of motion (TAM), HRV-corrected IR (HRVcIR), and HRV-corrected ER (HRVcER) were measured and calculated bilaterally using a digital inclinometer and ultrasonography. Bilateral differences (Δ) were calculated (dominant minus nondominant) for HRV and ROM variables. Isometric ER:IR strength ratios …

The Effect Of Functional Movement Control On Patient-Reported Outcomes In Individuals With Non-Arthritic Hip Pain, Ryan Mcgovern

Electronic Theses and Dissertations

Purpose: Both the single leg squat test and step-down test assess for deficiencies relating to the hip and surrounding musculoskeletal structures and could be useful in the evaluation of functional movement control for individuals with non-arthritic hip pain. The purpose of this study is to determine if individuals with non-arthritic hip pain that improve functional movement control during the single leg squat test and step-down test have better patient-reported outcomes than those that do not improve, following the implementation of a rehabilitation intervention and a standardized home-exercise program.

Subjects: Forty-six individuals (31 females; 15 males) with a mean age of …

Differences In Lower Body Strength, Power Between Genders, Shonterious D. Williams

Electronic Theses and Dissertations

INTRODUCTION: Athletic individuals have many characteristics, which make them more elite than the average individual. When determining an individual’s physical fitness level, strength, power, and agility are commonly examined. When measuring strength, power, and agility in elite athletes the scores are compared to some portion of body composition such as muscle cross-sectional area and fat-free mass. When looking at the same factors in recreationally trained individuals the research mostly normalized to body weight. PURPOSE: To examine the differences in lower body strength, power, and agility in male and female recreationally trained individuals when normalized to body mass, fat-free mass, and …

Baseline Postural Control Measures: An Indicator For Increased Injury Frequency Following Sports Related Concussion, Emily Belson

Electronic Theses and Dissertations

INTRODUCTION: An increase in acute lower extremity (LE) injuries have been observed in athletes following sports-related concussion.^{1, 2, 3} It has been suggested that lingering postural control deficits as a result of concussive injury, may play a role in the increased prevalence of injury.¹ PURPOSE: To investigate the relationship between baseline postural control metrics (Root Mean Square; Peak Excursion Velocity; Sample Entropy) and acute LE injury frequency in NCAA Division I student athletes (SA) with a previous history of concussion. METHODS: Eighty-four NCAA Division I SA were selected from a single university, 42 SA with a previous history …

The Reliability Of The Navicular Drop Test And Its Transferability To Dynamic Movement, Joshua Krispin

Electronic Theses and Dissertations

Background: Navicular drop can be defined as the distance the navicular tuberosity moves from a standing weight bearing to a standing neutral position, as the subtalar joint moves from a relaxed position to a neutral position. Navicular drop is an important measurement for clinicians used to describe foot function, pronation, and excessive movement seen in several pathologies. Objective: The purpose of this study is to see if navicular drop is influenced by mode or speed of locomotion, if it is will there be other influences such as the forefoot and heel soft tissue, and will those factors influence those measures. …

Stability Of Isometric Strength Asymmetry And Its Relationship To Sprint And Change-Of-Direction Performance Asymmetry In Division-I Collegiate Athletes, Benjamin H. Gleason

Electronic Theses and Dissertations

The purpose of this dissertation was to evaluate the stability of strength asymmetry over a long-term period (1 year) and investigate the relationship of strength asymmetry to field test performance asymmetry in NCAA division-1 athletes. Isometric mid-thigh pull (IMTP) peak force asymmetry, ground contact time and finish time asymmetries on 10m sprint and 505 agility test performances were also observed. The impact of strength was also investigated in these studies to determine its effect on the magnitude of asymmetry.

In the second study, peak force asymmetry over a one-year period was observed to be a rather volatile quality, with ranges …