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Articles 1 - 30 of 36
Full-Text Articles in Medicine and Health Sciences
Application Of The Transtheoretical Model: Assessing Exercise Behavior In African Americans In A Church-Based Setting, Robin Marie White
Application Of The Transtheoretical Model: Assessing Exercise Behavior In African Americans In A Church-Based Setting, Robin Marie White
UNLV Theses, Dissertations, Professional Papers, and Capstones
Sedentary behavior rates are higher among African-American men and women than in other American races and ethnicities, placing them at greater risk for chronic illness. Routine physical activity reduces the risk of chronic health problems such as: (a) overweight and obesity, (b) type 2 diabetes, (c) hypertension, (d) coronary artery disease, (e) stroke, (f) congestive heart failure, and (g) cancers. Assessment of African-Americans' exercise attitudes in a church-based setting may provide information with which to develop effective interventions to improve physical activity. This descriptive, cross-sectional study used components of the Transtheoretical Model (TTM) to assess whether any associations exist between …
Psychosocial Factors In Sports Injury Rehabilitation And Return To Play, Leslie W. Podlog, John Heil, Stefanie Podlog (Nee Schulte)
Psychosocial Factors In Sports Injury Rehabilitation And Return To Play, Leslie W. Podlog, John Heil, Stefanie Podlog (Nee Schulte)
Athletic Training Collection
This article discusses the principles and practices that guide psychological intervention with injury, and encourages a psychological approach to injury for clinicians. Part 1 reviews the research literature, and serves as a foundation for the review of clinical practices in part 2. Examination of the research literature highlights 4 areas: (1) psychological factors influencing rehabilitation, (2) social factors affecting rehabilitation, (3) performance concerns among returning athletes, and (4) tools/inventories for assessing psychological readiness to return. A synopsis of an injury intervention plan is provided, and the influence of pain and fear in the rehabilitation process is described.
Practical Applications Of Biomechanical Principles In Resistance Training: Neuromuscular Factors And Relationships, Jason Lake, Paul A. Swinton, Justin Keogh
Practical Applications Of Biomechanical Principles In Resistance Training: Neuromuscular Factors And Relationships, Jason Lake, Paul A. Swinton, Justin Keogh
Justin Keogh
This paper is the second in our three part series examining how a variety of biomechanical principles and concepts have direct relevance to the prescription of resistance training for the general and athletic populations as well as for musculoskeletal injury rehabilitation. In this paper, we considered different neuromuscular characteristics of resistance exercise. We started by defining the causes of motion, discussing force and Newton’s second law of linear motion. This led to discussion of impulse, and how its relationship with momentum can be used to study force-time curves recorded from different ground-based resistance exercises. This enables the sports biomechanist to …
Kir Channel Activation Contributes To Onset And Steady-State Exercise Hyperemia In Humans, Anne R. Crecelius, Gary J. Luckasen, Dennis G. Larson, Frank A. Dinenno
Kir Channel Activation Contributes To Onset And Steady-State Exercise Hyperemia In Humans, Anne R. Crecelius, Gary J. Luckasen, Dennis G. Larson, Frank A. Dinenno
Health and Sport Science Faculty Publications
We tested the hypothesis that activation of inwardly rectifying potassium (KIR) channels and Na+-K+-ATPase, two pathways that lead to hyperpolarization of vascular cells, contributes to both the onset and steady-state hyperemic response to exercise. We also determined whether after inhibiting these pathways nitric oxide (NO) and prostaglandins (PGs) are involved in the hyperemic response. Forearm blood flow (FBF; Doppler ultrasound) was determined during rhythmic handgrip exercise at 10% maximal voluntary contraction for 5 min in the following conditions: control [saline; trial 1 (T1)]; with combined inhibition of KIR channels and Na …
Stride Length-Speed Relationship During Body Weight Supported Running, Carmen Chona
Stride Length-Speed Relationship During Body Weight Supported Running, Carmen Chona
UNLV Theses, Dissertations, Professional Papers, and Capstones
The purpose of this study was to determine if body weight support influences the stride length-speed relationship. Additionally, the purpose was to determine if impact characteristics of running are influenced by body weight support and speed. Subjects (n=10; 6 female, 4 male) volunteered to participate in this study. All subjects were injury free and were comfortable running on a treadmill for 30 minutes. Subjects ran on a lower body positive (LBPP, Alter-G, G-Trainer) treadmill for 4 conditions of body weight (100, 40, 30 and 20% of body weight) and 4 running speeds (100, 110, 120 and 130% of the preferred …
An Evaluation Of Kinematic Variables During Stance Phase Of A Training Endurance Run, Joshua Paul Bailey
An Evaluation Of Kinematic Variables During Stance Phase Of A Training Endurance Run, Joshua Paul Bailey
UNLV Theses, Dissertations, Professional Papers, and Capstones
The purpose of the study was to evaluate kinematics of the lower extremity during the stance phase of an endurance training run. Fifteen participants (8 male, 7 female; 30.5 ± 8.4 years; 71.8 ± 11 kg; 1.73 ± 0.07 m) reported that they were currently signed up for, or planned on signing up for, an endurance race within the next six months of participation in the study (9 half marathon, 3 marathon, 1 triathlon, 2 21k trail run). All had a weekly running mileage greater than 20 miles (23.8 ±4.6 miles). Participants were required to complete the 15–kilometer training run …
Quantitative Ultrasound: Measurement Considerations For The Assessment Of Muscular Dystrophy And Sarcopenia, Michael O. Harris-Love, Reza Monfaredi, Catheeja Ismail, Marc R. Blackman, Kevin Cleary
Quantitative Ultrasound: Measurement Considerations For The Assessment Of Muscular Dystrophy And Sarcopenia, Michael O. Harris-Love, Reza Monfaredi, Catheeja Ismail, Marc R. Blackman, Kevin Cleary
Exercise and Nutrition Sciences Faculty Publications
Diagnostic musculoskeletal ultrasound has potential clinical utility in characterizing pathological muscle tissue. Sonography has been long proposed as method of assessing muscle damage due to neuromuscular diseases such as muscular dystrophy, and more recently, changes in body and tissue composition associated with muscle wasting disorders such as sarcopenia. The use of quantitative ultrasound as an adjunct diagnostic procedure has different technical challenges than the traditional use of ultrasound in clinical medicine. Operator-dependent technique and variation are critical considerations when obtaining measures of echointensity (i.e., tissue composition estimates) and tissue dimensions (i.e., muscle thickness) – key elements of the ultrasound assessment …
Changes In Running Gait Parameters During A 161 Km Trail Race, Sarah Breen, Mitchell Stephenson, Randall L. Jensen, Scott Drum
Changes In Running Gait Parameters During A 161 Km Trail Race, Sarah Breen, Mitchell Stephenson, Randall L. Jensen, Scott Drum
Conference Presentations
No abstract provided.
Comparison Of Kinematics And Accuracy Of Overhand American Football Throwing, Cale Anderson, Sarah Breen, Randall L. Jensen
Comparison Of Kinematics And Accuracy Of Overhand American Football Throwing, Cale Anderson, Sarah Breen, Randall L. Jensen
Conference Presentations
No abstract provided.
Ampk Activation: A Therapeutic Target For Type 2 Diabetes?, Kimberly A. Coughlan, Rudy Valentine, Neil B. Ruderman, Asish K. Saha
Ampk Activation: A Therapeutic Target For Type 2 Diabetes?, Kimberly A. Coughlan, Rudy Valentine, Neil B. Ruderman, Asish K. Saha
Rudy Valentine
Effectiveness Of A Football Over Helmet Padding System In Reducing Peak Acceleration Of The Head And Severity Index 2014, Nicole Cuccurullo
Effectiveness Of A Football Over Helmet Padding System In Reducing Peak Acceleration Of The Head And Severity Index 2014, Nicole Cuccurullo
Master's Theses
The purpose of this study was to determine if: (a) a football helmet equipped with the Guardian Cap meets the National Operating Committee on Standards for Athletic Equipment (NOCSAE) football helmet standards and (b) if the Severity Indexes and peak accelerations produced during the NOCSAE impact tests were smaller for a football helmet equipped with the Guardian Cap over-helmet padding system than for the same helmet without the Guardian Cap. A total of 54 drop impact tests were completed, 27 on the football helmet alone and 27 on the football helmet equipped with the Guardian Cap. Tests were completed on …
Neuropsychological Effects Of Interactive Physical And Cognitive Exercise: Increasing The Mental Challenge, Shannon Crowley
Neuropsychological Effects Of Interactive Physical And Cognitive Exercise: Increasing The Mental Challenge, Shannon Crowley
Honors Theses
In the past decade there has been a strong desire to implement more enjoyable, interactive video game experiences to enhance an individual’s exercise performance. In addition, virtual reality exercise has been utilized to create a more pleasurable experience for older adults suffering from dementia. Best (2012) defined exergaming as, “a new generation of video games that stimulate a more active, whole-body gaming experience.” A recent study found that exergaming, when compared to stationary biking, can improve cognition among the older population suffering from cognitive decline (Anderson-Hanley et al., 2012). In addition, working memory training also leads to a significant improvement …
Quantifying The Effect Of Age And Contraction Mode On The Force-Velocity-Power Relationship In The Knee Extensors, Justin R. Paturel
Quantifying The Effect Of Age And Contraction Mode On The Force-Velocity-Power Relationship In The Knee Extensors, Justin R. Paturel
Electronic Thesis and Dissertation Repository
PURPOSE: To assess and compare the force-velocity-power relationship (F-V-P) using isotonic and isokinetic knee extensions in 11 younger (19-30y) and 11 older (69-81y) men. METHODS: The construction of the F-V-P curves were attained with each participant performing maximal, explosive knee extensions at 8 different loads (isotonic) and 8 different velocities (isokinetic) on a Cybex HUMAC NORM dynamometer. Maximal voluntary contraction (MVC or Po), maximal shortening velocity (Vmax), maximum power, optimal torque (Popt) and velocity (Vopt) were assessed and compared. RESULTS: The older men were 43% weaker, 18% slower and ~54% less powerful …
Bodypump And The Rep Effect: An Instructor's Evaluation Of The Low-Weight, High-Repetition Group Exercise Program, Meredith Pritchett
Bodypump And The Rep Effect: An Instructor's Evaluation Of The Low-Weight, High-Repetition Group Exercise Program, Meredith Pritchett
Senior Theses
My senior thesis project was to become a certified Les Mills BODYPUMP instructor. In order to obtain my certification I had to go through training, which was paid for by the University of South Carolina. Training was a mentally and physically demanding weekend full of lifting weights and learning everything there is to know about BODYPUMP techniques, choreography, and coaching. Afterwards, I had sixty days to send in a video of myself teaching the class to a group of participants in order for my teaching skills to be evaluated by Les Mills. I passed my evaluation and am now a …
Associations Of Total Activity Counts And Physical Activity Intensity Levels With The Metabolic Syndrome: A Structural Equation Modeling Approach, Dana Lizbeth Wolff
Associations Of Total Activity Counts And Physical Activity Intensity Levels With The Metabolic Syndrome: A Structural Equation Modeling Approach, Dana Lizbeth Wolff
Doctoral Dissertations
To clarify the protective benefits of physical activity (PA), epidemiologists and public health researchers continue to seek improved methods of assessing PA. In particular, accelerometers have gained acceptance with researchers as they provide reliable estimates of PA and can record both the amount and intensity of ambulatory movement. However, there is concern that accelerometer data reduction techniques may not provide quantitatively accurate measurements of time spent in various PA intensity categories. One way to circumvent these inaccuracies is to use the accelerometer-derived total activity counts (TAC), which is a more direct expression of what the monitor records.
In order to …
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
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
The Quadmill: Effects Of Eccentric Training Vs. Concentric Training On Lower Extremity Power And Anaerobic Capacity 2014., John Crosby
Master's Theses
Training focuses on the concentric action of muscle during exercise for most exercise programs, but eccentric training may yield greater results. The QuadmillTM is a unique piece of training equipment that focuses on training the quadriceps muscle eccentrically. Purpose: to determine if using the QuadmillTM could increase power and anaerobic capacity to the same level, if not greater, than a standard concentric focused lower body training protocol. Participants were 44 undergraduate college students (24 Male 20 Female) Design: participants placed into three equal groups (QuadmillTM, Lifting, Control). The two experimental groups (QuadmillTM and Lifting) underwent …
Physical Activity And Nutritional Behavior Of Overweight College Students Trying To Lose Weight 2014, Santino Vallejos M.S.
Physical Activity And Nutritional Behavior Of Overweight College Students Trying To Lose Weight 2014, Santino Vallejos M.S.
Master's Theses
Although there are numerous benefits to increased physical activity and proper dietary behaviors, the decreased participation in physical activity and poor dietary behaviors has emerged as a significant problem within the college student population. The focus of this research study was to identify the relationship between physical activity and dietary behavior to weight loss behaviors within an undergraduate student sample of a small, comprehensive northeastern university. College-aged students (age range: 17 to 27 years old) completed the American College Health Association’s (ACHA) National College Health Assessment II (NCHA) during the years 2009 and 2012. According to the results, there were …
Factors Affecting The Coefficient Of Friction Of Soccer Goalie Gloves 2014, Candice Hofmann
Factors Affecting The Coefficient Of Friction Of Soccer Goalie Gloves 2014, Candice Hofmann
Master's Theses
The purpose of this study was to compare the coefficients of static friction of five different pairs of soccer goalie gloves with one soccer ball and to compare the effects of four different glove conditions on the coefficients of static friction. Specifically, the coefficients of static friction were determined and compared for one size 5 soccer ball (Select) with five different pairs of goalie gloves (Nike Vapor Grip 3, Select 88, Uhlsport Aqua, Uhlsport Soft and Uhlsport Hard) and four different glove conditions (new, wet, saliva and dirty). Surrogate wooden fingers were inserted into each glove and the glove was …
Soccer Participation And Youth Obesity In The United States, Lee Schober
Soccer Participation And Youth Obesity In The United States, Lee Schober
Chancellor’s Honors Program Projects
No abstract provided.
Improving Running Performance Using Non-Running Tasks, Darien Lewis
Improving Running Performance Using Non-Running Tasks, Darien Lewis
Honors College
For decades researchers and runners have endeavored to improve endurance running performance. Recent evidence suggests that adding resistance training to a running program can improve running performance. Our purpose was to determine if 6wks of resistance exercise via negative eccentrically-induced work (RENEW), an exercise that increases muscle size, strength, and stiffness, could serve as an effective “non-running” modality for improving running performance. Recreational runners were assigned to a: RENEW (n=7), plyometric (PLYO, n=7), or control (CON, n=7) group. RENEW trained on an eccentric ergometer (3x/wk, 10-30min, 54-66% of peak heart rate) while the PLYO performed …
Physical Activity And Its Effect On Reducing Disease: A Literature Review Of The National Runner's Health Study, Graham William Edson
Physical Activity And Its Effect On Reducing Disease: A Literature Review Of The National Runner's Health Study, Graham William Edson
Kinesiology, Recreation, and Sport Studies Publications and Other Works
In 1996, Dr. Paul Williams began The National Runner’s Health Study. The study had over one hundred thousand respondents who were questioned about their physical activity habits (walking or running), diet, weight, height, and use or previous use of tobacco and alcohol. Some of the participants were involved in case studies of several years. Primarily, the study tested the effects of vigorous physical activity and its ability to reduce disease. For close to twenty years, Dr. Williams has continued an impressive amount of research on various topics in the health and exercise field. The study is one of the most …
Intensity Of Exercise And Endothelial Function In Healthy Adults, Jacquelyn R. Moxey
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 …
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
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?, Mary Stenson
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 …
Assessing Function And Endurance In Adults With Spinal And Bulbar Muscular Atrophy: Validity Of The Adult Myopathy Assessment Tool., Michael O. Harris-Love, Lindsay Fernandez-Rhodes, Galen Joe, Joseph A. Shrader, Angela Kokkinis, Alison La Pean Kirschner, Sungyoung Auh, Cheunju Chen, Li Li, Ellen Levy, Todd E. Davenport, Nicholas A. Di Prospero, Kenneth H. Fischbeck
Assessing Function And Endurance In Adults With Spinal And Bulbar Muscular Atrophy: Validity Of The Adult Myopathy Assessment Tool., Michael O. Harris-Love, Lindsay Fernandez-Rhodes, Galen Joe, Joseph A. Shrader, Angela Kokkinis, Alison La Pean Kirschner, Sungyoung Auh, Cheunju Chen, Li Li, Ellen Levy, Todd E. Davenport, Nicholas A. Di Prospero, Kenneth H. Fischbeck
Exercise and Nutrition Sciences Faculty Publications
Purpose. The adult myopathy assessment tool (AMAT) is a performance-based battery comprised of functional and endurance subscales that can be completed in approximately 30 minutes without the use of specialized equipment. The purpose of this study was to determine the construct validity and internal consistency of the AMAT with a sample of adults with spinal and bulbar muscular atrophy (SBMA).
Methods. AMAT validity was assessed in 56-male participants with genetically confirmed SBMA (mean age, 53 ± 10 years). The participants completed the AMAT and assessments for disease status, strength, and functional status. Results. Lower AMAT scores were associated with longer …
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
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 …
Greater Polar Moment Of Inertia At The Tibia In Athletes Who Develop Stress Fractures, Lee A. Weidauer, Teresa Binkley, Matthew Vukovich, Bonny Specker
Greater Polar Moment Of Inertia At The Tibia In Athletes Who Develop Stress Fractures, Lee A. Weidauer, Teresa Binkley, Matthew Vukovich, Bonny Specker
Health and Nutritional Sciences Faculty Publications
Background: Several previous investigations have determined potential risk factors for stress fractures in athletes and military personnel.
Purpose: To determine factors associated with the development of stress fractures in female athletes.
Study Design: Case-control study; Level of evidence, 3.
Methods: A total of 88 female athletes (cross-country, n ¼ 29; soccer, n ¼ 15; swimming, n ¼ 9; track and field, n ¼ 14; volleyball, n ¼ 12; and basketball, n ¼ 9) aged 18 to 24 years were recruited to participate in a longitudinal bone study and had their left distal tibia at the 4%, 20%, and 66% sites …
Examination Of Two Hydration Protocols During Simulated Forced Marching Under Acute Heat Stress, David Alan Cottrill
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 …
Short And Long-Term Lifestyle Coaching Approaches Used To Address Diverse Participant Barriers To Weight Loss And Physical Activity Adherence, Elizabeth M. Venditti, Judith Wylie-Rosett, Linda M. Delahanty, Lisa L. Mele, Mary A. Hoskin, Sharon Edelstein
Short And Long-Term Lifestyle Coaching Approaches Used To Address Diverse Participant Barriers To Weight Loss And Physical Activity Adherence, Elizabeth M. Venditti, Judith Wylie-Rosett, Linda M. Delahanty, Lisa L. Mele, Mary A. Hoskin, Sharon Edelstein
GW Biostatistics Center
Background
Individual barriers to weight loss and physical activity goals in the Diabetes Prevention Program, a randomized trial with 3.2 years average treatment duration, have not been previously reported. Evaluating barriers and the lifestyle coaching approaches used to improve adherence in a large, diverse participant cohort can inform dissemination efforts.
Methods
Lifestyle coaches documented barriers and approaches after each session (mean session attendance = 50.3 +/- 21.8). Subjects were 1076 intensive lifestyle participants (mean age = 50.6 years; mean BMI = 33.9 kg/m2; 68% female, 48% non-Caucasian). Barriers and approaches used to improve adherence were ranked by the percentage of …