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Articles 1 - 13 of 13
Full-Text Articles in Exercise Science
Chronic Training Load And Dorsiflexion Range Of Motion Throughout A Season In Professional American Soccer, Tristan L. Young
Chronic Training Load And Dorsiflexion Range Of Motion Throughout A Season In Professional American Soccer, Tristan L. Young
Electronic Theses and Dissertations
Soccer has an incredibly complex movement profile. Players experience various types of strains on their body from the requirement to land in awkward positions while maintaining the ability to quickly accelerate and decelerate. Dorsiflexion range of motion (DFROM) is of concern due to the movement profile and ball control that requires constant eccentric and concentric actions at the talocrural joint. With an American soccer season spanning across nine months these demands can contribute to overuse, which has been linked to restricted range of motion. Restricted DFROM and asymmetries have been identified as injury predictors, but their relationship to performance has …
Effects Of Occupational Tasks And Personal Protective Equipment On Static And Functional Balance Among Career Firefighters, Petra Kis
Electronic Theses and Dissertations
BACKGROUND: Musculoskeletal injuries are commonly incurred on the fireground among firefighters. Most injuries are attributable to overexertion, fall, jump, slip, and trip mechanisms. These injuries may be caused by many factors, including the independent and collective effects of wearing personal protective equipment (PPE) and the fatigue induced by performing occupational tasks. Therefore, the purpose of this study was to investigate the effect of PPE and fire suppression tasks on static and functional balance among firefighters. METHODS: 32 healthy male career structural firefighters (Age: 31.8±9.5 yr) volunteered for this study. Static and Functional Balance Tests (FBT) were performed in …
Effects Of Various Golf Bag Loading Strategies On Perceived Exertion And Vertical Jump Performance, Austen Arnold
Effects Of Various Golf Bag Loading Strategies On Perceived Exertion And Vertical Jump Performance, Austen Arnold
Electronic Theses and Dissertations
INTRODUCTION: The sport of golf is increasing in popularity among both novice and skilled players alike. A round of golf necessitates players to cope with a range of physically demanding movement patterns. At the collegiate level, golfers must transport their clubs by loading them onto the body. Previous literature has yet to determine how different golf bag carrying positions influence periodic, unloaded jump performance and perceived exertion of the load carrying task. PURPOSE: The purpose of this study is to investigate how different golf bag load carriage methods may influence vertical jump performance and perceived exertion. METHODS: Five golf bag …
The Development Of A Novel Throwing Assessment For Children With Cerebral Palsy, Cory Cribb
The Development Of A Novel Throwing Assessment For Children With Cerebral Palsy, Cory Cribb
Electronic Theses and Dissertations
Introduction: Cerebral palsy is one of childhood's most common developmental disabilities. Cerebral palsy leads to dysfunction in the upper extremities due to symptoms such as low muscle power, spasticity, and increased tone. A modified throwing assessment was constructed to examine throwing performance as a measure of upper extremity function. Purpose: To determine if the modified throwing assessment is a reliable measure of throwing performance and if the modified throwing assessment is a valid measure of upper extremity power in children with CP. Methods: The study employed a test-retest design aimed at determining the reliability of a modified throwing assessment. Seven …
Long-Term Disability Following A Hamstring Injury, Savannah Mclain
Long-Term Disability Following A Hamstring Injury, Savannah Mclain
Electronic Theses and Dissertations
PURPOSE: Injuries to the hamstring complex are one of the most commonly seen lower extremity injuries in athletic populations. It is currently unknown how psychological or sociological factors affect an athlete after the recovery process has ended and if these factors play a role in re-injury rates relating to the hamstring. It is also unknown if athlete confidence level changes while in a fatigued state after an athlete returns to play from a hamstring injury. METHODS: Twenty-six physically active adults with and without a previous hamstring injury were recruited for this study. Participants completed a Qualtrics survey that …
Current Recommendations For Lower Body Aerobic Exercise In Chronic Unilateral Stroke - A Systematic Review, Jordan N. Brown
Current Recommendations For Lower Body Aerobic Exercise In Chronic Unilateral Stroke - A Systematic Review, Jordan N. Brown
Electronic Theses and Dissertations
Background: Chronic stroke patients (i.e., > six months since the onset of stroke) continue to experience persistent gait complications. Once formal physical therapy concludes, exercise professionals can implement exercise interventions designed to improve quality of life and reduce risk of secondary stroke. This systematic review aimed to evaluate whether lower-body aerobic exercise transferred to gait improvements in chronic unilateral stroke. Methods: An electronic search of the following databases were undertaken: MEDLINE, CINHAL, Ovid, and SPORTdiscus. Two independent reviewers selected articles using predetermined inclusion criteria: adults (i.e., >18 years old) who suffered from a chronic unilateral stroke. Additionally, all included studies were …
The Effects Of A Mirror On Cognitive Strategy And Performance Of A Muscular Endurance Task, Brianna M. Simmons
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 …
The Effects Of Increasing Running Speed On Vgrf And Asymmetry, Kaela M. Hierholzer
The Effects Of Increasing Running Speed On Vgrf And Asymmetry, Kaela M. Hierholzer
Electronic Theses and Dissertations
Biomechanical and physiological parameters related to running performance are usually studied separately. However, evaluating both aspects together could be beneficial in improving athletic performance. The purpose of this study was to observe the change in peak vGRF and asymmetry as speed increases, while observing physiological responses during a O2maxtest. Data from athlete monitoring of 12 cross-country and triathlon athletes were analyzed. The athlete monitoring protocol included three unweighted countermovement jumps and a O2maxtest performed by the athletes. The athletes had an average O2maxof 53.4 ± 7.7 mL/kg/min, while their average vGRF asymmetry throughout the …
Biomechanical Comparison Of "Old" And "New" Cheer Shoes In Collegiate Cheerleaders, Abigail C. Johnson
Biomechanical Comparison Of "Old" And "New" Cheer Shoes In Collegiate Cheerleaders, Abigail C. Johnson
Electronic Theses and Dissertations
INTRODUCTION: The sport of cheerleading requires that athletes perform with a high degree of flexibility, strength, endurance, and balance. The leading injury in cheerleading is a lateral, inversion, ankle sprain. As footwear serves as an interface between the foot and the surrounding environment, characteristics of shoes should be monitored to determine the effects on proprioceptive communication. No previous literature was found that examined the biomechanical differences between “Old” and “New” shoes in collegiate cheerleaders. PURPOSE: The purpose of this study was to examine the biomechanical differences exhibited by collegiate cheerleaders while performing balance testing and step-down, landing tasks in “old” …
The Influence Of Strength In Load-Velocity Relationships In The Back Squat, Thaddeus Light
The Influence Of Strength In Load-Velocity Relationships In The Back Squat, Thaddeus Light
Electronic Theses and Dissertations
Load-velocity relationships may vary between people of different strength levels and across different loads. The purpose of this dissertation was to investigate how external loads influence the velocity characteristics of the back squat exercise, and the influence of strength on these variables. Healthy male students with a history of resistance training completed repetitions at specified intensities of their estimated one-repetition maximum (1RM) until they reached 1RM. Back squat 3D motion analysis was captured using four Vicon T010 cameras (Vicon Motion Systems Ltd.; Oxford, UK) and Vicon Nexus 1.8.5 software. Data were transported into R custom coding statistical analysis software (version …
Kinetic And Kinematic Characteristics Of Accentuated Eccentric Loading, John Wagle
Kinetic And Kinematic Characteristics Of Accentuated Eccentric Loading, John Wagle
Electronic Theses and Dissertations
The current investigation was an examination of the kinetic and kinematic characteristics of the back squat using accentuated eccentric loading (AEL) and cluster set programming strategies. Trained male subjects (age = 26.1 ± 4.1 years, height = 183.5 ± 4.3 cm, body mass = 92.5 ± 10.5 kg, back squat to body mass ratio = 1.8 ± 0.3) volunteered to complete four different load condition sessions involving traditionally loaded straight sets (TL), traditionally loaded cluster sets (TLC), AEL cluster sets (AEC), and AEL straight sets where only the first repetition of each set used eccentric overload (AEL1). The use of …
The Effect Of Various Body Positions On Performance Of The Isometric Mid-Thigh Pull, George K. Beckham
The Effect Of Various Body Positions On Performance Of The Isometric Mid-Thigh Pull, George K. Beckham
Electronic Theses and Dissertations
The purpose of this dissertation was to evaluate the effects of changing body position on the execution of the isometric mid-thigh pull (IMTP). Furthermore, while there is evidence to suggest that there is an effect of familiarization on performance of maximal strength tests, there has been no known research evaluating the effect of learning on the IMTP. The effect of familiarization was assessed by evaluating changes in variables obtained from the IMTP. Subjects did not statistically improve over the five IMTP testing sessions, regardless of the body position used, or if subjects had previous experience with weightlifting derivatives. This may …
Lower Limb Acceleration During The Block-Start Vs. Selected Power And Strength Exercises, Thomas A. Ordelt
Lower Limb Acceleration During The Block-Start Vs. Selected Power And Strength Exercises, Thomas A. Ordelt
Electronic Theses and Dissertations
The purpose of this study was to determine the effect of load changes on angular accelerations of the ankle, knee and hip joints. Accelerations were measured in the squat (S), power clean (PC) and power hang clean (PHC), and compared to the accelerations in the push-off phase of the sprint start (SS). Methods: Nine female Division I college track athletes performed block sprint-starts, single-leg squat jumps (1S0) with 0% of 1RM, squats (jump) with 0, 25, 40% of 1RM, and PC and PHC with 30, 50, 75, 100% of 1RM. The fastest trial of each exercise was analyzed for minimum …