Effect Of Weight Support On Tibial Accelerations During A Lower-Body Positive Pressure Treadmill Cadence Controlled Run,
2014
Sacred Heart University
Effect Of Weight Support On Tibial Accelerations During A Lower-Body Positive Pressure Treadmill Cadence Controlled Run, Brendan J. Rickert, Matthew F. Moran, Beau K. Greer
Exercise Science Faculty Publications
Running in a lower-body positive pressure treadmill (LBPP-TM) is utilized for athletes to maintain fitness while recovering from tibial stress fracture. Previous investigations report that step rate is linearly related to level of body weight (BW) support and tibial accelerations (TA) is not significantly reduced until
Comparison Of Sweat Rates And Sweat Electrolyte Concentrations In Collegiate Male And Female Athletes With And Without A History Of Cramping,
2014
University of Arkansas, Fayetteville
Comparison Of Sweat Rates And Sweat Electrolyte Concentrations In Collegiate Male And Female Athletes With And Without A History Of Cramping, Brittany Cherie Willard
Health, Human Performance and Recreation Undergraduate Honors Theses
The purpose of this study was to explore the two main theories of muscle cramping by comparing sweat rate and sweat-electrolyte concentrations of athletes with a reported history of exercise associated muscle cramping (EAMC) to those with minimal cramping history to provide a potential link between sodium deficiency/sweat rate and EAMCs. The methodological consistency of analyses between two separate processes was also evaluated.
How Functional Fitness Relates To Muscular Power Among Older Adults,
2014
University of Arkansas, Fayetteville
How Functional Fitness Relates To Muscular Power Among Older Adults, Jessica Mae Moix
Health, Human Performance and Recreation Undergraduate Honors Theses
The current study examined the relationship between functional fitness measures and muscular power among older adults. A 30-second chair stand test, 10-meter habitual walking test, and an 8-foot up-and-go test were all used as measures of functional fitness and muscular power was measured by Tendo analysis. The purpose of this study was to determine what aspects of functional fitness were associated with muscular power while then provide evidence that functional fitness can predict muscular power among older adults. Fifty-seven participants over 65 years old completed both the functional fitness and muscular power measures. Three separate correlations between functional fitness measures …
Self Myofascial Release: Effects On Hamstring Range Of Motion And Torque,
2014
University of Southern Mississippi
Self Myofascial Release: Effects On Hamstring Range Of Motion And Torque, Dillion F. Evans
Honors Theses
Research has indicated that static stretching may reduce force production capabilities. This has led many practitioners to exchange static stretching for alternative methods of increasing range of motion (ROM) in warm-ups. Despite having little research to support its use, self myofascial release—foam rolling—has been suggested as a viable alternative (Macdonald et al, 2013). The objective of this study was to determine how self myofascial release (SMR) of the hamstring muscle group affects ROM and torque production capabilities of the hamstring muscle group. Ten subjects (age 26.5 6.5 years, mass 74.412.1 kg, height 1738 cm) were recruited. A within subjects randomized, …
Physiological Responses At The Critical Heart Rate During Treadmill Running,
2014
University of Nebraska-Lincoln
Physiological Responses At The Critical Heart Rate During Treadmill Running, Haley Bergstrom
Department of Nutrition and Health Sciences: Dissertations, Theses, and Student Research
The purposes of this study were to: 1) determine if the critical heart rate (CHR) model for cycle ergometry can be applied to treadmill running; and 2) examine the times to exhaustion (Tlim) as well as the VO2, ratings of perceived exertion (RPE), electromyographic amplitude (EMG AMP) and mean power frequency (MPF) responses during constant heart rate (HR) runs at CHR-5 b·min-1 (CHR-5), CHR, and CHR+5 b·min-1 (CHR+5). Thirteen runners performed an incremental treadmill test to exhaustion. On separate days, 4 constant velocity runs to exhaustion were performed. The total number of heart beats …
The Acute Effects Of Different Blood Flow Restriction Settings On Blood Lactate, Electromyography And Leg Strength During Bilateral Knee Extensions,
2014
University of Texas at Brownsville
The Acute Effects Of Different Blood Flow Restriction Settings On Blood Lactate, Electromyography And Leg Strength During Bilateral Knee Extensions, Guillermo Eduardo Perez
Theses and Dissertations - UTB/UTPA
The current protocols being used for Blood Flow Restriction (BFR) exercise did not examine the effects of different Initial Restrictive Pressures (pressure applied to limb by cuff prior to inflation, IRP) during design. There are several research articles highlighting the importance of IRP and how it can create variability in results. Therefore it is necessary to evaluate the current BFR protocol against different IRP in order to determine reliability. PURPOSE: The purpose of this study was to examine the acute effects of different blood flow restriction setting on 1) the level of blood lactate production, 2) neuromuscular activation (the changes …
Effects Of Tens On Voluntary Quadriceps Activation And Vertical Ground Reaction Force During Walking In Subjects With Experimental Knee Pain,
2014
Brigham Young University - Provo
Effects Of Tens On Voluntary Quadriceps Activation And Vertical Ground Reaction Force During Walking In Subjects With Experimental Knee Pain, Seong Jun Son
Theses and Dissertations
Context: Knee pain is a common symptom in knee pathology and is associated with alterations in quadriceps activation and movement patterns. Reducing pain through intervention may help reestablish neuromuscular function. The independent effects of knee pain are difficult to examine and unclear. Objective: To investigate the effects of transcutaneous electrical nerve stimulation (TENS) on quadriceps activation and vertical ground reaction force (VGRF) during walking. Design: Crossover. Setting: Laboratory. Subjects: 15 in the TENS group (10M and 5F, 23.5 ± 2.8 yrs, 70.5 ± 12.5 kg, 178.1 ± 7.4 cm), and 15 in the sham group (10M and 5F, 22.5 ± …
The Influence Of Ambulation Speed And Corresponding Mechanical Variables On Articular Cartilage Metabolism,
2014
Brigham Young University - Provo
The Influence Of Ambulation Speed And Corresponding Mechanical Variables On Articular Cartilage Metabolism, W. Matt Denning
Theses and Dissertations
During ambulation, lower-extremity joint angles and net moments influence knee joint load. It is unclear which mechanical variables most strongly correlate with acute articular cartilage (AC) catabolism in response to ambulation. Purpose: To determine which mechanical variables are most strongly correlated to acute AC catabolism, and to test the acute effect of ambulation speed on AC catabolism, while controlling for load frequency. Methods: 18 able-bodied subjects (9 male, 9 female; age = 23 ± 2 y; mass = 68.3 ± 9.6 kg; height = 1.70 ± 0.08 m) completed three separate ambulation sessions: slow (preferred walking speed), medium (+50% of …
Intensity Of Exercise And Endothelial Function In Healthy Adults,
2014
Old Dominion University
Intensity Of Exercise And Endothelial Function In Healthy Adults, Jacquelyn R. Moxey
Human Movement Studies & Special Education Theses & Dissertations
PURPOSE: To examine the effects of acute bouts of isocaloric exercise at different intensities on endothelial function. The flow-mediated dilation (FMD) responses after the different acute exercise bouts were compared to a control (no exercise) condition. METHODS: Nine healthy subjects completed the study (6 males, 3 females, X ± SD = 24 ± 5 yr, 1.75 ± 0.11 m, 79.2 ± 12.4 kg, 47.9 ± 6.9 mL•kg-1•min-1). Vascular responses were compared under three different conditions- HIT: a bout of high-intensity interval treadmill exercise consisting of ten 1-minute intervals at ~100% VO2max; MOD: moderate-intensity exercise …
The Perceived Demands Of Crossfit,
2014
Northern Michigan University
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 …
Defining The "Dose" Of Altitude Training: How High To Live For Optimal Sea Level Performance Enhancement,
2014
Indiana University Bloomington
Defining The "Dose" Of Altitude Training: How High To Live For Optimal Sea Level Performance Enhancement, Robert F. Chapman, Trine Karlsen, Geir K. Resaland, R. L. Ge, Matthew P. Harber, Sarah Witkowski, James Stray-Gundersen, Benjamin D. Levine
Exercise and Sport Studies: Faculty Publications
Defining the "dose" of altitude training: how high to live for optimal sea level performance enhancement. J Appl Physiol 116: 595-603, 2014. First published October 24, 2013; doi:10.1152/japplphysiol.00634.2013.-Chronic living at altitudes of 2,500 m causes consistent hematological acclimatization in most, but not all, groups of athletes; however, responses of erythropoietin (EPO) and red cell mass to a given altitude show substantial individual variability. We hypothesized that athletes living at higher altitudes would experience greater improvements in sea level performance, secondary to greater hematological acclimatization, compared with athletes living at lower altitudes. After 4 wk of group sea level training and …
Thermoregulatory, Cardiovascular, And Perceptual Responses To Intermittent Cooling During Exercise In A Hot, Humid Outdoor Environment,
2014
Chapman University
Thermoregulatory, Cardiovascular, And Perceptual Responses To Intermittent Cooling During Exercise In A Hot, Humid Outdoor Environment, Michelle A. Cleary, Michelle G. Toy, Rebecca M. Lopez
Athletic Training Faculty Articles and Research
Decreasing core body temperature during exercise may improve exercise tolerance, facilitate acclimatization, and prevent heat illness during summer training. We sought to evaluate the effectiveness of intermittent superficial cooling on thermoregulatory, cardiovascular, and perceptual responses during exercise in a hot humid environment. We used a randomized, counterbalanced, repeated measures investigation with 2 conditions (control and cooling) during exercise and recovery outdoors on artificial turf in a hot, humid tropical climate in the sun (wet bulb globe temperature outdoors [WBGTo], 27.0 6 0.88 C; range, 25.8–28.18 C) and in the shade (WBGTo, 25.4 6 0.98 C; range, 24.3–26.88 C). Participants were …
The Acute Effects Of Whole-Body Corrective Exercise On Postural Alignment,
2014
Brigham Young University - Provo
The Acute Effects Of Whole-Body Corrective Exercise On Postural Alignment, Nicole Renee Rencher
Theses and Dissertations
This study examined the acute effects of whole-body corrective exercise on postural alignment in a sample of 50 male participants (18-30 y) displaying asymmetrical postural deviations. All participants were randomly assigned to either a non-exercise control (n = 25) or corrective exercise treatment (n = 25) group. A three-dimensional motion analysis Vicon system was employed to quantify standing postural alignment at the beginning and end of a 6 d study. Postural misalignments were determined in degrees of symmetry (tilt) and rotation using horizontal and vertical virtual plumb lines for the following locations: hip (ASIS), leg (greater trochanter), shoulder (acromion process), …
The Effect Of Interval Training On Resting Blood Pressure,
2014
Brigham Young University - Provo
The Effect Of Interval Training On Resting Blood Pressure, Camilla May Nielson
Theses and Dissertations
Purpose: An experimental study to examine the effects of CardioWaves interval training (IT) and continuous training (CT) on resting blood pressure, resting heart rate, and mind-body wellness. Methods: Fifty-two normotensive (blood pressure <120/80 mmHg), pre-hypertensive (120-139/80-89 mmHg), and hypertensive (>140/90 mmHg) participants were randomly assigned and equally divided between the IT and CT groups. Both groups participated in the assigned exercise protocol thirty minutes per day, four days per week for eight weeks. Resting blood pressure, resting heart rate, and mind-body wellness were measured pre- and post-intervention. Results: A total of 47 participants (15 females and 32 males) were included in the analysis. The IT group had …
Achilles Tendon Changes In Downhill, Level And Uphill Running,
2014
Brigham Young University - Provo
Achilles Tendon Changes In Downhill, Level And Uphill Running, Katy Andrews Neves
Theses and Dissertations
In this study, we examined how hill running affects the Achilles tendon, which is a common location for injuries in runners. Twenty females ran for 10 min on three randomly selected grades (-6%, 0%, +6%). Achilles tendon (AT) cross-sectional area (CSA) was imaged using Doppler ultrasound and peak vertical forces were analyzed using high-speed (240 Hz) videography. A metabolic cart and gas analyzer ensured a similar metabolic cost across grades. Data were analyzed using a forward selection regression. Results showed a decrease in AT CSA from pre-run to post-run (p = .0001). Peak vertical forces were different across grades (p …
Effect Of Fontan Fenestration On Regional Venous Oxygen Saturation During Exercise: Further Insights Into Fontan Fenestration Closure,
2014
Medical College of Wisconsin
Effect Of Fontan Fenestration On Regional Venous Oxygen Saturation During Exercise: Further Insights Into Fontan Fenestration Closure, Rohit S. Loomba, Michael E. Danduran, Jennifer E. Dixon, Rohit P. Rao
Exercise Science Faculty Research and Publications
Fontan fenestration closure is a topic of great debate. The body of data regarding the risks and benefits of fenestration closure is limited yet growing. Previous studies have demonstrated that Fontan patients have less exercise capacity than those with normal cardiovascular anatomy. Differences also have been noted within various subgroups of Fontan patients such as whether Fontan is fenestrated or not. This study aimed to compare trends in regional oxygen saturations using near-infrared spectroscopy (NIRS) in patients with Fontan circulations during ramping exercise to further delineate differences between patients with and without a fenestration. It was hypothesized that Fontan patients …
Beyond Basic Exercise Guidelines: Is Sitting Really The New Smoking?,
2014
College of Saint Benedict/Saint John's University
Beyond Basic Exercise Guidelines: Is Sitting Really The New Smoking?, Mary Stenson
Forum Lectures
The "Just Stand" movement has recently gained a foothold at CSB|SJU with the addition of sit-stand workstations in Clemens Library, Murray Hall, and several faculty and staff offices. Researchers have been studying "sitting disease," more formally termed sedentary physiology, for over a decade and have begun to conclude that simply meeting exercise guidelines is not enough to reduce risk for chronic diseases. An individual can be physically active and lead a sedentary lifestyle. The two are not mutually exclusive. The average American adult, even those who meet the general exercise guidelines, spends 55% of their waking hours sedentary. Sedentary behaviors …
Feasibility And Acceptability Of An Early Childhood Obesity Prevention Intervention: Results From The Healthy Homes, Healthy Families Pilot Study,
2014
Brown University
Feasibility And Acceptability Of An Early Childhood Obesity Prevention Intervention: Results From The Healthy Homes, Healthy Families Pilot Study, Akilah Dulin Keita, Patricia M. Risica, Kelli L. Drenner, Ingrid Adams, Gemma Gorham, Kim M. Gans
Faculty Publications
Background. This study examined the feasibility and acceptability of a home-based early childhood obesity prevention intervention designed to empower low-income racially/ethnically diverse parents to modify their children’s health behaviors. Methods. We used a prospective design with pre-/posttest evaluation of 50 parent-child pairs (children aged 2 to 5 years) to examine potential changes in dietary, physical activity, and sedentary behaviors among children at baseline and four-month follow-up. Results. 39 (78%) parent-child pairs completed evaluation data at 4-month follow-up. Vegetable intake among children significantly increased at follow-up (0.54 cups at 4 months compared to 0.28 cups at baseline, 𝑃 …
Examination Of Two Hydration Protocols During Simulated Forced Marching Under Acute Heat Stress,
2014
Marshall University
Examination Of Two Hydration Protocols During Simulated Forced Marching Under Acute Heat Stress, David Alan Cottrill
Theses, Dissertations and Capstones
The purpose of this study was to identify and compare the effects of ingesting either water or 6% solution of carbohydrates, electrolytes, and water on hydration status during simulated military road marching in hot environmental conditions. Five volunteer male subjects completed two 60 minute experimental trials exercising at a high intensity (RER .90-.95) in an improvised environmental chamber (29.7 + or - .18oC, 11.3 + or - 2.13% relative humidity) in full army combat uniform carrying 18.18kg of equipment. Random assignment of either water or solution was completed prior to trial 1, and consumption of the unselected protocol …
Obesity-Related Hormones And Metabolic Risk Factors: A Randomized Trial Of Diet Plus Either Strength Or Aerobic Training Versus Diet Alone In Overweight Participants,
2014
Touro College
Obesity-Related Hormones And Metabolic Risk Factors: A Randomized Trial Of Diet Plus Either Strength Or Aerobic Training Versus Diet Alone In Overweight Participants, Allan Geliebter, Christopher N. Ochner, Carl L. Dambkowski, Sami A. Hashim
Lander College of Arts and Sciences Publications and Research
There is debate about the additive effects of exercise in conjunction with diet to treat obesity, and not much is known about the differential effects of strength versus aerobic training. This randomized controlled trial examined the effects of diet plus strength training, diet plus aerobic training, or diet only on metabolic risk factors associated with obesity. Eighty-one overweight and obese participants completed the 8-week intervention. All participants received an energy-restrictive formula diet with an energy content based on 70% of measured resting metabolic rate (RMR). Participants assigned to an exercise group trained 3 days/week under supervision. Anthropometrics and fasting hormones …
