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You searched for +publisher:"University of Oklahoma" +contributor:("Kellawan, Mikhail"). Showing records 1 – 2 of 2 total matches.

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University of Oklahoma

1. Stone, Brandon. PHYSIOLOGICAL STRESS RESILIENCE: OPTIMIZING COGNITIVE PERFORMANCE IN RESERVED OFFICERS TRAINING CORPS DURING EXERCISE.

Degree: PhD, 2019, University of Oklahoma

Understanding the etiology of psychological and physiological stress resilience is imperative to human performance optimization. Previous studies examining how physiological systems interact with cognitive performance are not only quite limited, but have routinely examined performance immediately following exercise, the present study was designed to simultaneously and systematically examine the relationship between cognitive performance, specifically executive function, and high-intensity exercise in 15 ROTC cadets. Linear mixed modeling and Tukey’s multiple comparison tests were conducted to evaluate significant differences in mean scores at varying levels of exercise intensity. Results indicated that both absolute and relative levels of exercise intensity are highly predictive of changes in both executive function scores and degree of cerebral oxygenation. Specifically, decrements in cognition begin to occur at intensities higher than 70% of HRR. This study is an important first step in identifying key factors and associated mechanisms indicative of positive adaptation to physiological stress (i.e., exercise), enabling the identification of potential targets for training or the modification of protocols to optimize performance in high risk occupations. Advisors/Committee Members: Black, Chris (advisor), Kellawan, Mikhail (advisor), Shehab, Randa (committee member), Fuenzalida, Eugenia (committee member), Larson, Rebecca (committee member).

Subjects/Keywords: acute exercise; cognitive performance; stress resilience; human performance

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Stone, B. (2019). PHYSIOLOGICAL STRESS RESILIENCE: OPTIMIZING COGNITIVE PERFORMANCE IN RESERVED OFFICERS TRAINING CORPS DURING EXERCISE. (Doctoral Dissertation). University of Oklahoma. Retrieved from http://hdl.handle.net/11244/321111

Chicago Manual of Style (16th Edition):

Stone, Brandon. “PHYSIOLOGICAL STRESS RESILIENCE: OPTIMIZING COGNITIVE PERFORMANCE IN RESERVED OFFICERS TRAINING CORPS DURING EXERCISE.” 2019. Doctoral Dissertation, University of Oklahoma. Accessed October 22, 2019. http://hdl.handle.net/11244/321111.

MLA Handbook (7th Edition):

Stone, Brandon. “PHYSIOLOGICAL STRESS RESILIENCE: OPTIMIZING COGNITIVE PERFORMANCE IN RESERVED OFFICERS TRAINING CORPS DURING EXERCISE.” 2019. Web. 22 Oct 2019.

Vancouver:

Stone B. PHYSIOLOGICAL STRESS RESILIENCE: OPTIMIZING COGNITIVE PERFORMANCE IN RESERVED OFFICERS TRAINING CORPS DURING EXERCISE. [Internet] [Doctoral dissertation]. University of Oklahoma; 2019. [cited 2019 Oct 22]. Available from: http://hdl.handle.net/11244/321111.

Council of Science Editors:

Stone B. PHYSIOLOGICAL STRESS RESILIENCE: OPTIMIZING COGNITIVE PERFORMANCE IN RESERVED OFFICERS TRAINING CORPS DURING EXERCISE. [Doctoral Dissertation]. University of Oklahoma; 2019. Available from: http://hdl.handle.net/11244/321111


University of Oklahoma

2. Buchanan, Samuel. ALTERATIONS OF C-MIRNA EXPRESSION FROM WHOLE-BODY VIBRATION AND RESISTANCE EXERCISE IN POSTMENOPAUSAL WOMEN.

Degree: PhD, 2019, University of Oklahoma

INTRODUCTION: Previous research has examined the effects of exercise on circulating miRNA (c-miRNA) expression. C-miRNAs have been associated with exercise-induced adaptations for skeletal muscle hypertrophy and aerobic capacity in humans, and angiogenesis in rats. Most studies evaluating miRNA expression post-exercise have utilized either running, cycling, or resistance training, but no studies were found where whole-body vibration was used in humans. Furthermore, evaluation of miRNAs in the context of exercise and aging is also sparse in evidence in human populations, especially postmenopausal women. Evaluating alterations in the expression of c-miRNA may provide deeper insight into the positive effects of exercise in the attenuation of the negative effects of aging. PURPOSE: The primary purpose of this study was to characterize the effects of acute bouts of resistance exercise and whole-body vibration on expression of selected c-miRNAs in postmenopausal women aged 65-85 years. The secondary purpose of this study was to determine if correlations exist between baseline c-miRNAs and muscle strength and bone characteristics. METHODS: Ten community-dwelling, postmenopausal women aged 65-85 were recruited for the study. This within-subjects randomized crossover study design compared the relative expression changes of c-miRNA from a bout of resistance exercise and a bout of whole-body vibration. Dual x-ray absorptiometry (DXA) was used to measure body composition and areal bone mineral density (BMD) of the total body, AP lumbar spine, and dual proximal femur. Peripheral quantitative computed tomography (pQCT) was used to measure volumetric values of BMD at the 4%, 38%, and 66% sites. Participants performed resistance exercises in the following order: leg press, shoulder press, lat pulldown, leg extension, and hip adduction. There were three sets of 10 repetitions per exercise at 70% of 1RM with 2-3 min of rest between sets and exercises. Participants performed vibration training on the Vibraflex Vibration Platform. Each of 5 bouts were performed for one min at a 20 Hz frequency with a 3.38 mm peak-to-peak displacement and 1 min of rest between bouts. A blood sample of 7.5 ml was collected via venipuncture by a registered phlebotomist. Baseline samples were collected between 8:00 and 9:00 a.m. after an 8h overnight fast and again immediately-post, 60 min, 24 hrs, and 48 hrs after exercise to measure c-miRNA. After each draw, two hematocrit tubes were filled from the serum separator tubes (SST) for measurement of hematocrit (HCT) and plasma volume shifts. Samples were aliquoted and frozen at -84 °C until shipped for analysis. MicroRNA quantification was performed by TAmiRNA Vienna, Austria for miR-21a-5p, -23a-3p, -133a-3p, -148a-3p. ANALYSIS: Statistical analyses were performed using IBM SPSS Statistics (SPSS Inc., Chicago, IL), version 24. Normality of dependent variables was assessed via Shapiro-Wilk tests. Non-normal distributions were assessed with the Kruskal-Wallis test and Mann-Whitney U tests. A two-way… Advisors/Committee Members: Bemben, Debra (advisor), Bemben, Michael (committee member), Black, Christopher (committee member), Kellawan, Mikhail (committee member), Berkowitz, Ari (committee member).

Subjects/Keywords: microRNA; postmenopausal women; exercise; biomarker

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Buchanan, S. (2019). ALTERATIONS OF C-MIRNA EXPRESSION FROM WHOLE-BODY VIBRATION AND RESISTANCE EXERCISE IN POSTMENOPAUSAL WOMEN. (Doctoral Dissertation). University of Oklahoma. Retrieved from http://hdl.handle.net/11244/321121

Chicago Manual of Style (16th Edition):

Buchanan, Samuel. “ALTERATIONS OF C-MIRNA EXPRESSION FROM WHOLE-BODY VIBRATION AND RESISTANCE EXERCISE IN POSTMENOPAUSAL WOMEN.” 2019. Doctoral Dissertation, University of Oklahoma. Accessed October 22, 2019. http://hdl.handle.net/11244/321121.

MLA Handbook (7th Edition):

Buchanan, Samuel. “ALTERATIONS OF C-MIRNA EXPRESSION FROM WHOLE-BODY VIBRATION AND RESISTANCE EXERCISE IN POSTMENOPAUSAL WOMEN.” 2019. Web. 22 Oct 2019.

Vancouver:

Buchanan S. ALTERATIONS OF C-MIRNA EXPRESSION FROM WHOLE-BODY VIBRATION AND RESISTANCE EXERCISE IN POSTMENOPAUSAL WOMEN. [Internet] [Doctoral dissertation]. University of Oklahoma; 2019. [cited 2019 Oct 22]. Available from: http://hdl.handle.net/11244/321121.

Council of Science Editors:

Buchanan S. ALTERATIONS OF C-MIRNA EXPRESSION FROM WHOLE-BODY VIBRATION AND RESISTANCE EXERCISE IN POSTMENOPAUSAL WOMEN. [Doctoral Dissertation]. University of Oklahoma; 2019. Available from: http://hdl.handle.net/11244/321121

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