Kinesiology Commons^™

The Relationship Between Vascular Endothelial Function Andpeak Exercise Blood Flow, Brady Edward Hanson

Theses and Dissertations

Purpose The vascular endothelium is an influential contributor to vasodilation at rest, yet its role during peak exercise is relatively unknown. The purpose of this study is to determine if exercise leg blood flow during dynamic submaximal and maximal exercise is related to resting vascular endothelial function. Methods Nineteen subjects (aged 23 ± 0.57 yr) completed multiple assessments of vascular endothelial function including passive leg movement (PLM), rapid onset vasodilation, (ROV) and flow-mediated dilation (FMD). Peak muscle blood flow was assessed during single leg knee extension (KE) exercise. Doppler ultrasound of the femoral artery was utilized to assess muscle blood …

The Effect Of Deep Tissue Heating On Skeletal Muscle Pgc1 A Protein Expression During Muscle Atrophy, Kaitlin Abbott, Dr. Allen Percell

Journal of Undergraduate Research

Through this project, we aimed to determine if repeated heat stress is a viable treatment to reduce or slow muscle atrophy in human muscle subjected to disuse. Specifically, I investigated how repeated heat stress affects the expression of PGC1-a, a gene that is an upstream regulator of mitochondrial biogenesis. This protein promotes muscle growth and normally is triggered by environmental factors including the metabolic needs (energy, temperature, stress, etc.) of the muscle. If it could be increased in the muscle, it could potentially lead to the preservation of muscle strength and function in a variety of disease states. These include …

Effect Of Cuff Pressure On Blood Flow During Blood Flow-Restricted Rest And Exercise, Kent Westerberg Crossley

Theses and Dissertations

Purpose: The purpose of this study was to investigate the blood flow/pressure relationship (linear or nonlinear) in the superficial femoral artery when seated, as well as to investigate blood flow changes with exercise using varying cuff pressures and a preexercise (PE) condition. The presence of venous outflow with occlusion at rest and exercise was also investigated.Methods: Twenty-three subjects visited the lab on 3 occasions. First to determine linearity of blood flow using 0% to 90% arterial occlusion pressure (AOP), and venous outflow at rest and during exercise with cuff inflated to 40% AOP. Subsequent visits compared blood flow between rest …

The Role Of The Midfoot In Drop Landings, Mark T. Olsen, Dustin A. Bruening, A. Wayne Johnson, Sarah T. Ridge

Faculty Publications

Purpose: The midfoot is instrumental to foot function; however, quantifying its roles in human movement has been difficult. A forceful dynamic activity like landing may help elucidate the midfoot’s contribution to foot energetics and function. The main purpose of this study was to measure midtarsal joint kinematics and kinetics during a barefoot single-leg landing task. A secondary aim of this study was to explore the relationship between static foot posture and dynamic midfoot function.

Methods: In a cross-sectional study design, 48 females (age = 20.4 ± 1.8 yr, body mass index = 21.6 ± 1.7 kg/m) performed drop landings from …