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- Baseball; Baseball players; College athletes; College sports; Posture - physiology; Academic theses; Thesis (1)
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Articles 1 - 14 of 14
Full-Text Articles in Motor Control
Effects Of Chronic Marijuana Use On Postural Control During Quiet Standing, Johnathon S. Ashcraft
Effects Of Chronic Marijuana Use On Postural Control During Quiet Standing, Johnathon S. Ashcraft
Master's Theses
Marijuana, Cannabis Sativa, is the most commonly used recreational drug in the United States, with more than 60 million people reporting use in 2022 (Substance Abuse and Mental Health Services Administration, 2023). As marijuana consumption has increased, so have questions surrounding its acute and long-term effects. Its acute effects are well documented; however, the long-term effects are not as well understood. It is hypothesized that chronic marijuana users will exhibit a decrease in postural stability during quiet standing when compared to non-users, so the purpose of this study was to compare postural control of chronic marijuana users and non-users in …
Does Limb Specialization In Track And Field Introduce Asymmetry In Dynamic Stability?, Aaron X. Jones
Does Limb Specialization In Track And Field Introduce Asymmetry In Dynamic Stability?, Aaron X. Jones
Master's Theses
Time to stabilization (TTS) represents the time it takes for a person to become still after a hop landing. Lower times suggest greater dynamic stability. Whereas leg dominance (preference) does not seem to have a significant impact on TTS performance in the general healthy populations, limb specialization in sport may introduce asymmetry. This study compares TTS following forward hops in healthy male controls (N = 19) to varsity DIII Track & Field athletes (N = 20). Groups were equal for height, but the athlete group’s average limb length (106.7 ± 5.5 cm) was greater than the control group (101.5 ± …
Ankle Dorsiflexion Range Of Motion, Dynamic Balance, And Static Balance In Division Iii Collegiate Gymnasts, Emily Sabo
Ankle Dorsiflexion Range Of Motion, Dynamic Balance, And Static Balance In Division Iii Collegiate Gymnasts, Emily Sabo
Master's Theses
Introduction: Artistic gymnastics is a demanding sport composed of high intensity activities. Decreased range of motion can increase the risk of lower extremity injury due to the inability to disperse forces properly upon landing. Landing from a height demands dynamic balance, which may be influenced by ankle range of motion. Due to the complexity of the sport, identifying potential deficits at the ankle could lead to the development of injury prevention programs. Purpose: The purpose of this study is to investigate if correlations exist between active ankle dorsiflexion range of motion (AROM) and static balance and/or AROM and dynamic balance …
An Exploration Of Postural Control In Young Adults, Paul Franzese
An Exploration Of Postural Control In Young Adults, Paul Franzese
Master's Theses
The purpose of this study was to identify any differences in time to boundary (TTB) among collegiate baseball players and a control group during quiet standing. Participants were 64 apparently healthy men, including 23 position players, 22 pitchers, and 19 control subjects. Testing consisted of two, individually randomized 3-minute quiet standing trials on a force plate, one with eyes open, and one with eyes closed. Average time to boundary values in anteroposterior (AP) and mediolateral (ML) directions were calculated and a series of 2x3 (vision, group) repeated measures ANOVA were performed. Results include a difference in TTB in all groups …
The Effect Of Attentional Focus Instructions On Single Leg Balance Performance 2020., Cory Monahan
The Effect Of Attentional Focus Instructions On Single Leg Balance Performance 2020., Cory Monahan
Master's Theses
Balance and postural control exercises are often a part of exercise programs. During exercise programs, movement practitioners can provide instructions to facilitate performance and learning. Instructions can be used to direct attentional focus, which has been found to affect the performance and learning of motor skills, including balance and postural control tasks. However, no known studies to date have investigated the effect of both internal and external attentional focus instructions on static single leg balance performance. The purpose of this study was to investigate the effect of attentional focus instructions on static single leg balance performance as reflected by the …
Relationships Among Actual Motor Competence, Perceived Motor Competence And Health-Related Fitness In A College-Aged Population 2018, Samantha Moss
Relationships Among Actual Motor Competence, Perceived Motor Competence And Health-Related Fitness In A College-Aged Population 2018, Samantha Moss
Master's Theses
Purpose: The purpose of this study was to assess relationships among actual motor competence, perceived motor competence, and health-related fitness in a college-aged population. Methods: A total of 76 participants from SUNY Cortland enrolled in an undergraduate Kinesiology course completed an informed consent form. Total data were obtained on 71 participants (male = 53; female = 18). Perceived motor competence (PMC) was assessed via the Physical Self Perception Profile questionnaire, which participants completed one week prior to remaining assessments. Motor competence (MC) was assessed by maximum throw and kick speed as well as maximum distance jumped. Health-related fitness (HRF) was …
The Effects Of Quadmill Training On Balance: An Intervention Study 2017, Alexander J. Generali
The Effects Of Quadmill Training On Balance: An Intervention Study 2017, Alexander J. Generali
Master's Theses
The purpose of this study was to observe and compare the effects of two separate training interventions using the QuadmillTM to a control group on balance in college-aged individuals. It was hypothesized that both experimental groups (I1 and I2) would experience improvements in balance over the intervention whereas the control group would remain at baseline. It was secondarily hypothesized that I2 would experience greater improvements than I1 in balance due to the nature of the exercise protocol. Data was collected using three systems; Balance Tracking Systems, Star Excursion Balance Test, and the Biodex Balance system. A two-way mixed methods ANOVA …
The Effect Of Blood Flow Restriction Training With The Quadmill On Peak Isometric Knee Extensor Strength 2017, Brandon Schrom
The Effect Of Blood Flow Restriction Training With The Quadmill On Peak Isometric Knee Extensor Strength 2017, Brandon Schrom
Master's Theses
Traditional training methodologies that improve muscular strength use loads as low as 75% of a person’s one-repetition maximum and as high as 110% of a person’s one repetition maximum. With these high loads comes a greater risk for injury. Blood flow restriction (BFR) training is a potential solution to this problem. BFR training originated in Japan, where it was called Kaatsu. With this method of training, a trainee ties a tourniquet around the proximal end of a limb to reduce blood flow to and from the limb’s muscles. The purpose of this study was to determine whether three-weeks of BFR …
The Effect Of Weighted Body Armor On Close Combat Reaction Time And Core Muscle Activation 2016, Christopher Banta
The Effect Of Weighted Body Armor On Close Combat Reaction Time And Core Muscle Activation 2016, Christopher Banta
Master's Theses
The purpose of this study was to measure the choice reaction time and myoelectric activity of the right and left rectus abdominus, and right and left external obliques required to initiate movement in response to a visual stimulus that signaled performance of four different closecombat movements (left or right cross and left or right dodge). Reaction time and myoelectric activity were then compared with performing the movements in response to the visual stimulus while wearing a weighted vest that simulated wearing tactical body armor. Myoelectric activity was measured as the average root mean square (RMS) of the surface electromyography (sEMG) …
Power Output And Loads On The Lumbar Vertebrae During A Power Clean 2016, Joseph Keleher
Power Output And Loads On The Lumbar Vertebrae During A Power Clean 2016, Joseph Keleher
Master's Theses
The purpose of the present study was to compare the peak resultant torque, shear, and compressive forces acting at the L3/L4 junction of the lumbar vertebrae and the peak power output during 40% one repetition maximum (1RM) and 80% 1RM attempts of the power clean. It was hypothesized that performance of a power clean at 80% 1RM will result in greater peak resultant compressive force, torque and shear force at the L3/L4 junction of the lumbar spine than that of a 40% 1RM attempt. Power cleans at 80% 1RM will also result in higher maximum instantaneous power outputs than that …
Variability Of Practice And Strength Training Periodization: When Theories Collide, Katherine Lauren Streder
Variability Of Practice And Strength Training Periodization: When Theories Collide, Katherine Lauren Streder
Master's Theses
The primary purpose of this study was to examine whether variability of practice enhances neuromuscular adaptations when compared to traditional strength training. The secondary purpose was to investigate whether there was a difference in perception of exertion between the two strength programs. Forty one subjects (23 women and 18 men) were assigned to either the control group or one of two treatment groups by a blocked-random method. Subject's one repetition maximum (1RM) for the kettlebell press and leg press were measured at baseline, after 4 weeks of training, and after 8 weeks of training. The treatment groups completed 8 weeks …
An Exploratory Biomechanical Analysis Of The Side-To-Side Swing Patterns Of Three Skilled Switch Hitters, Francesca Marie Castellucci
An Exploratory Biomechanical Analysis Of The Side-To-Side Swing Patterns Of Three Skilled Switch Hitters, Francesca Marie Castellucci
Master's Theses
The ability to successfully switch hit, or hit a baseball from both sides of the plate, requires a great amount of practice and coordination bilaterally. This study used three-dimensional kinematic and kinetic data to examine the swing patterns of skilled switch hitters in baseball. Three male minor league and division I collegiate switch hitters participated. Subjects stood on force plates and hit baseballs off a tee while their swings were recorded with a three-dimensional optical motion capture system. Each subject performed twenty total swings, ten from the right and ten from the left. The swings were digitally analyzed and the …
The Effect Of Random, Blocked, And Transition Practice Schedules On Children's Performance Of A Barrier Knockdown Test, Gregory C. Snider
The Effect Of Random, Blocked, And Transition Practice Schedules On Children's Performance Of A Barrier Knockdown Test, Gregory C. Snider
Master's Theses
The purpose of this research was to examine whether a transition schedule of contextual interference facilitated learning in retention and transfer equal to or better than random and blocked schedules among children. The author selected participants from the central coast of California and from youth activity leagues. The author selected children between the ages of 10 to 13 with a mean age of 11.5. There were a total of 36 subjects, half male and half female. Unfortunately, due to computer error, only data from 15 subjects were saved and available for analysis. Researchers randomly assigned participants to one of three …
The Effects Of Alterations To Upper Limb Inertial Properties On Vertical Point-To-Point Movement, Adrian K. Hongo
The Effects Of Alterations To Upper Limb Inertial Properties On Vertical Point-To-Point Movement, Adrian K. Hongo
Master's Theses
Purpose: Several studies have examined intralimb coordination between the shoulder and elbow joints during target-oriented movements. These studies have observed consistent patterns in coordination despite changes in movement variables such as speed, direction, and inertia. Researchers used intersegmental dynamics to quantitatively analyze these patterns between shoulder and elbow joints while systematically changing values of these movement variables. Some studies have examined central nervous system adaptations to inertial changes at the elbow and entire arm during a movement, but none have examined inertial changes to the upper limb. Methods: Five male and five female participants aged 27 to 39 years (mean …