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Articles 1 - 11 of 11
Full-Text Articles in Life Sciences
Using Additional Measures Of Handgrip Strength To Predict Aerobic Capacity In Wheelchair Users, Eric Naugle
Using Additional Measures Of Handgrip Strength To Predict Aerobic Capacity In Wheelchair Users, Eric Naugle
All NMU Master's Theses
Manual wheelchair users have been shown to have low physical capacity and impaired ability to perform activities of daily living. Current tests and protocols for assessing physical capacity in wheelchair users have specific boundaries. Measuring handgrip strength (HGS) with electronic handgrip dynamometers has been shown to be a reliable measure of muscle function and a convenient assessment of overall muscle strength. This study aimed to determine the correlation of maximal HGS, HGS rate of force development, HGS fatigability, HGS isometric control, and HGS asymmetry to a six-minute wheelchair propulsion (6MPT) test in ambulatory young adults. Thirty-four recreationally active ambulatory individuals …
The Effect Of Step Rate Training On Running Economy And Biomechanics, Nahir Negron-Fernandez
The Effect Of Step Rate Training On Running Economy And Biomechanics, Nahir Negron-Fernandez
All NMU Master's Theses
It is known that running economy is a determinant of running performance. Increased step rate has been correlated with improved running economy, but it is unknown whether these improvements can be maintained with chronic training. The purpose of this study was to determine if a step rate training intervention improves running economy and improves lower body kinetic factors in distance runners. Nine participants were randomly assigned to either an intervention group (n = 7) undergoing a 6-week supplemental training program, or a non-training control group (n = 2). The intervention group trained three times a week, running at a higher …
Transcutaneous Electrical Stimulation Does Not Decrease Torque Loss Over High Intensity Repetitions, Ian Koskinen
Transcutaneous Electrical Stimulation Does Not Decrease Torque Loss Over High Intensity Repetitions, Ian Koskinen
All NMU Master's Theses
Transcutaneous Electrical Stimulation, TENS, has been used widely as an analgesic and ergogenic aid for many years. Compared to other modalities of electrical stimulation, TENS has been shown to provide some benefits in exercise performance by reducing pain and increasing endurance in low intensity applications, such as time trial cycling or isometric endurance. While TENS has been shown to have a significant effect on exercise induced pain in individuals performing endurance activities, to my knowledge it has not been examined in high intensity contractions. 18 active young adults (age: 23.11 years ± 2.08, resistance training experience: 7.08 years ± 3.79, …
The Possible Role For Basigin Receptor Function In The Induction Of Matrix Metalloproteinase Expression In Human Endometrial Stromal Cells, Amy Abel
All NMU Master's Theses
10-15% of couples worldwide are affected by infertility. The leading cause of infertility is implantation failure. Molecular communication in precise time and space between an implanting embryo and a receptive uterus is essential for successful implantation. Basigin has been shown to have vital functions within the implantation process. Basigin is best known for inducing the expression of matrix metalloproteinases. Basigin has been shown to induce MMP expression in vitro in human endometrial stromal cell lines (HESC). Understanding how basigin induces matrix metalloproteinases within normal cellular conditions will help researchers understand how these signaling cascades flow in the framework of implantation. …
Relating Metabolic Phenotypes To Movement Behavior In Brook Trout, Jacob E. Bowman
Relating Metabolic Phenotypes To Movement Behavior In Brook Trout, Jacob E. Bowman
All NMU Master's Theses
Brook trout movement-related life history strategies vary considerably and range from individuals that stay within the same 100 meters their entire life to individuals that are potamodromous or anadromous. Potential drivers of movement life histories have been the subject of much research in fish, with genetic subpopulation explanations often failing to explain the phenomenon. Metabolic phenotypes have been suggested as a possible driver for expression of different movement life histories. I investigated if metabolic phenotypes are related to movement strategies within a population of brook trout (Salvelinus fontinalis) in Unnamed Creek, a tributary to the Rock River, Alger …
The Physiological Effects Of Therapy Dogs During Exercise For Sedentary Adults, Josie Lynne Mazzone
The Physiological Effects Of Therapy Dogs During Exercise For Sedentary Adults, Josie Lynne Mazzone
All NMU Master's Theses
Previous research has shown therapy dogs may be utilized to attenuate heart rate (HR) and blood pressure (BP) responses during various types of stressors due to an increase in oxytocin (OT) and decrease in cortisol (CL) production. These hormonal changes have also been shown to enhance exercise performance. Purpose: This study aimed to determine if physiological responses to exercise changed in the presence of a therapy dog for sedentary adults. Methods: Seven adult subjects (mean age of 30.86 ± 14.07 years) who self-reported less than 150 min of physical activity per week participated in a graded walking test with a …
Characterization Of The Roles Of Muscle-Synthesized Brain-Derived Neurotrophic Factor And Presynaptic Tyrosine Receptor Kinase B In Motor Neuron Axonal Transport, Luke A. Vanosdol
Characterization Of The Roles Of Muscle-Synthesized Brain-Derived Neurotrophic Factor And Presynaptic Tyrosine Receptor Kinase B In Motor Neuron Axonal Transport, Luke A. Vanosdol
All NMU Master's Theses
Brain-derived neurotrophic factor (BDNF) is a small, diffusible protein essential for the development and function of neurons. It is synthesized by many types of tissue, including muscle. BDNF actions are mediated via binding to its receptor, tyrosine receptor kinase B (TrkB). The BDNF-TrkB complex is endocytosed into a specialized vesicle, which induces downstream signaling cascades locally in the dendrites, or, more often, is delivered to the cell soma via retrograde axonal transport, where it modulates gene expression. BDNF activation of TrkB is critical for the initiation of axonal transport, and this cellular process relies on the interaction of numerous adaptor …
Effects Of Winter And Summer Thermal Variability Regimes On Growth And Metabolism In Brook Trout (Salvelinus Fontinalis), Spenser Chicoine
Effects Of Winter And Summer Thermal Variability Regimes On Growth And Metabolism In Brook Trout (Salvelinus Fontinalis), Spenser Chicoine
All NMU Master's Theses
Brook trout (Salvelinus fontinalis) is a cold-water species with a narrow range of thermal tolerance. Climate change projections show that in addition to increases in average temperatures worldwide, daily thermal variability is increasing. Such conditions could prove challenging for brook trout and other ectotherms that are adapted to small temperature ranges. This research investigates how the growth and metabolic capacities of brook trout respond to long-term exposure to thermal variation. Groups of fish were reared under three thermal regimes: constant baily temperature, a 4°C daily range, and an 8°C daily range in a controlled lab setting. This was …
Growth Patterns And Size-Group Interactions In Hatchery-Reared Age-0 Lake Sturgeon, Joseph M. Susco
Growth Patterns And Size-Group Interactions In Hatchery-Reared Age-0 Lake Sturgeon, Joseph M. Susco
All NMU Master's Theses
Raising lake sturgeon (Acipenser fulvescens) in hatcheries is an important tool for rehabilitation and conservation, but is expensive. When hatchery sturgeon do not grow large enough before stocking, their odds of survival decline significantly and resources are wasted. We investigated the potential limiting effect of large lake sturgeon on the growth rate of smaller conspecifics housed in the same tank, and the possibility of increasing growth rates by separating individuals into different size classes. We also examined plasma cortisol levels of the different size classes over time as an indicator of stress levels, and levels of free plasma …
The Effect Of Yoga On Growth Hormone Secretion In Young Men And Women, Aaron Eastham
The Effect Of Yoga On Growth Hormone Secretion In Young Men And Women, Aaron Eastham
All NMU Master's Theses
PURPOSE The purpose of this study was to examine the effects of an acute bout of yoga exercise on the secretion of growth hormone (GH) in healthy, young males and females. METHODS Seventeen participants (mean age 23.9 ± 3.9) were volunteered and completed the university IRB approved study. Participants completed a 60-min, certified instructor led yoga session. Blood (5ml) was collected at rest, 10-min prior (PRE), at the 35-min point during (MID), and immediately post (POST) the yoga session. Serum GH was measured using immunochemiluminometric assay. Resting GH levels were statistically compared to mid- and post-yoga GH levels using a …
The Perceived Demands Of Crossfit, Bryanne N. Bellovary
The Perceived Demands Of Crossfit, Bryanne N. Bellovary
All NMU Master's Theses
Rhabdomyolysis is the breakdown of muscle tissue causing myoglobin, creatine kinase, and other intracellular proteins and electrolytes to leak into circulation, disrupting cell homeostasis. Exertional rhabdomyolysis (ER) occurs after extremely rigorous physical training that could include high amounts of strenuous eccentric exercise. There has been an increase in reports for mild to severe ER as well as other musculoskeletal injuries as the popularity of extreme conditioning programs (e.g., CrossFit®) increases. Therefore, the main purposes of this investigation were to identify: primary risk factors associated with ER during CrossFit®, CrossFit® workouts that might induce a higher risk for the development of …