Sports Sciences Commons^™

Effects Of A 4-Week Heart Rate Variability Biofeedback Intervention On Psychological And Performance Variables In Student-Athletes: A Pilot Study, Samantha R. Weber, Zachary K. Winkelmann, Eva V. Monsma, Shawn M. Arent, Toni Torres-Mcgehee

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

PURPOSE: To examine the effects of a 4-week biofeedback intervention on coherence, psychological, and performance variables in collegiate student-athletes. METHODS: Thirteen student-athletes were randomly assigned to the intervention (one weekly biofeedback session for 4-weeks) or control group (no sessions). Data were collected at pre and post-intervention using weekly averaged coherence scores, psychological measures for depression, arousal, stress, resiliency, and performance outcome measures. RESULTS: A 3 (Time) x 4 (Week average) repeated measures ANOVA was independently conducted to examine differences between time and weekly coherence average for coherence scores. No significant differences were found for “at rest”, pre, or post-practice coherence …

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 …

Efficient Method Of Delivery For Powdered Supplement Or Placebo For An Outdoor Exercise Investigation, R W. Salatto, Dustin W. Davis, Bryson Carrier, Brenna Barrios, Jacquelyn Sertic, Peyton Cater, James W. Navalta

Topics in Exercise Science and Kinesiology

• Researchers often encounter issues while attempting to deliver complete doses of a desired supplement/placebo when conducting research in outdoor environments. The problem faced by our research team was how to efficiently deliver 6.4 grams of Beta Alanine (BA) powder to subjects while conducting a hiking study on a windy trail in Southern Utah. To minimize the potential impact of the weather, and to maximize the efficiency of delivery, we determined a premixed bolus of BA contained in individual commercially available 8oz water bottles was the most efficient delivery method. The purpose of this article is to detail the development and …

Maturational Timing And Swim Performance In Collegiate Female Swimmers, Brian V. Wright, Andrew C. Cornett, Sierra Wagner, Alan Duski, Joel M. Stager

Kinesiology Faculty Publications

The purpose of this study was to determine if maturational timing is related to collegiate swim performance. Maturational timing was estimated using age at menarche (AaM), which was determined retrospectively in collegiate swimmers (N = 273). Each swimmer’s best performance during the 2015-2016 NCAA season was obtained from the USA Swimming database and selected based on Power Point Score (PPS), a standardized score given to all performances in the database. Independent samples t tests were used to compare (i) PPS and body mass index (BMI; from selfreported height and weight) between earlier maturing (youngest 33% at menarche) and later maturing …

Kinetic Asymmetries During Submaximal And Maximal Speed Running, Devon H. Frayne

Masters Theses

An important issue for sports scientists, coaches and athletes is an understanding of the factors within a running stride that can enhance or limit maximal running speed. Previous research has identified many sprint-related parameters as potential kinetic limiters of maximal Center of Mass velocity (Chapman and Caldwell, 1983b; Weyand et al., 2001). Bilateral asymmetry is present for many of these parameters during running; however the degree to which such asymmetries change as running speed increases is unknown. It was hypothesized that asymmetries in key sprinting parameters would be larger at maximal speed than all other tested speeds. Kinematics and kinetics …

Force Characteristics In Different Shoe Designs, Bryson Nakamura

Summer Research

Women’s shoes are known to be constructed from the same parameters as men’s shoes but on a smaller scale. However, foot and gait characteristics are different between genders The purpose of this study was to determine if mid-sole design has an effect on ground reaction force characteristics during running, cutting and jumping motions. Twenty-two apparently healthy female (73.8±8.4 kg; 1.74±0.06 m) and seven male (73.5±5.3 kg; 1.68±0.02 m) current or recently graduated NCAA Division III athletes voluntarily participated in this study. Subjects wore four shoes with different mid-sole designs while performing five different actions: running, cutting, shuffling, back cut and …