UScholar Works
 
Filters: Department: "Exercise & Sport Science" Collection: "ir_uspace"
1 - 25 of 33
Number of results to display per page
CreatorTitleDescriptionSubjectDate
1 Martin, JimFourier series approximations and low pass filtering: facilitating learning of digital signal processing for biomechanics studentsFiltering raw biomechanical data to remove noise is a key first step that must be performed prior to further biomechanical analysis. Raw biomechanical data are usually filtered to remove noise above a specified cutoff frequency, a process known as "low pass filtering". The concept of frequency conte...2009-01-01
2 Martin, JimNo differences in cycling efficiency between world-class and recreational cyclistsThe aim of this experiment was to compare the efficiency of elite cyclists with that of trained and recreational cyclists. Male subjects (N =69)performed an incremental exercise test to exhaustion on an electrically braked cycle ergometer. Cadence was maintained between 80-90rpm.Gross efficiency; Delta efficiency; Cycling efficiency; Economy; VO2peak2004
3 Martin, JimAerodynamic drag area of cyclists determined with field-based measuresAerodynamic drag is an important factor in the performance of competitive track and road cyclists. Recently we used wind-tunnel testing to validate a practical measure of aerodynamic drag derived from a field test. We present here instructions for performing the field test on a straight flat road or...2006-01-01
4 Shultz, Barry B.Lumbar segmental mobility disorders: comparison of two methods of defining abnormal displacement kinematics in a cohort of patients with non-specific mechanical low back painBackground: Lumbar segmental rigidity (LSR) and lumbar segmental instability (LSI) are believed to be associated with low back pain (LBP), and identification of these disorders is believed to be useful for directing intervention choices. Previous studies have focussed on lumbar segmental rotation an...2006
5 Martin, JimTorso stabilization reduces the metabolic cost of producing cycling powerMany researchers have used cycling exercise to evaluate muscle metabolism. Inherent in such studies is an assumption that changes in whole-body respiration are due solely to respiration at the working muscle. Some researchers, however, have speculated that the metabolic cost of torso stabilization...Torso stabilization; Efficiency; Economy; Static contraction; Work2005
6 Newton, MariaEffects of a classroom-based physical activity program on childrens physical activity levelsHigh levels of physical inactivity are evident among many American children. To address this problem, providing physical activity (PA) during the school day within the CSPAP framework, is one strategy to increase children's PA. Thus, the purpose of this study was to examine the effects of a classroo...2014-01-01
7 Newton, MariaQualitative analysis of a pediatric strength intervention on the developmental stepping movements of infants with Down syndromeThe purpose of this study was to describe the developmental stepping movements of 5 infants with Down syndrome who participated in a pediatric strength intervention. Pretest and posttest data were collected with the Hawaii Early Learning Profile Strands, Battelle Developmental Inventory, and specia...Developmental stepping movements; Strength intervention; Progressive interactive facilitation; Motor development1996
8 Martin, JimUnderstanding sprint-cycling performance: the integration of muscle power, resistance, and modelingSprint-cycling performance is paramount to competitive success in over half the world-championship and Olympic races in the sport of cycling. This review examines the current knowledge behind the interaction of propulsive and resistive forces that determine sprint performance. Because of recent inno...2007-01-01
9 Hayes, Bradley T.Immediate effects of muscular fatigue on postural stability and motoneuron pool excitability in healthy adults2011-04-27
10 Friedrich, Frances; Walker, James A.Effects of parietal injury on covert orienting of visual attentionThe cognitive act of shifting attention from one place in the visual field to another can be accomplished covertly without muscular changes. The act can be viewed in terms of three internal mental operations: disengagement of attention from its current focus, moving attention to the target, and enga...Dominance, Cerebral; Attention; Extinction, Psychological1984-07
11 Hannon, James C.Physical activity differences by birthplace and sex in youth of Mexican HeritageBackground: One of the goals of Healthy People 2020 is to increase physical activity (PA) and reduce health disparities among different racial and ethnic segments of the U.S. population. Few studies have been conducted to examine PA differences by birthplace and sex in youth of Mexican heritage. Met...2012-01-01
12 Shaw, Janet M.Long-term exercise using weighted vests prevents hip bone loss in postmenopausal womenBackground. Bone mineral density (BMD) is a primary risk factor for hip fracture. We studied the effect of long-term weighted vest plus jumping exercise on hip BMD in postmenopausal women as a strategy for reducing hip fracture risk. Methods. Eighteen postmenopausal women (age 5 64.1 6 1.6 years a...2000
13 Kowalski, Christopher Aaron; Deesing, Michole Ann; Deeter, Nicholas B.; Symons, John DavidCeramide-induced disruption of endothelial nitric oxide synthase dimerization in bovine aortic endothelial cells (BAECs) is not secondary to peroxynitrite formationAn estimated 23.6 million individuals in the United States have diabetes and of those 90-95% have type II diabetes. Cardiovascular complications (e.g., hypertension and vascular dysfunction) are four-fold more prevalent in patients with type II diabetes. To gain insight into mechanisms responsib...Ceramide-induced disruption; Nitric oxide synthase dimerization; Bovine aortic endothelial cells; BAEC; Peroxynitrite formation; Trapeze Interactive Poster2010-01-20
14 Hannon, James C.Determination of step rate thresholds corresponding to physical activity intensity classifications in adultsBackground: Current recommendations call for adults to be physically active at moderate and/or vigorous intensities. Given the popularity of walking and running, the use of step rates may provide a practical and inexpensive means to evaluate ambulatory intensity. Thus, the purpose of this study wa...2011
15 Podlog, Leslie WilliamCollege students goal orientations, situational motivation and effort/persistence in physical activity classesThe purpose of this study was to examine relationships among college students' 2 × 2 goal orientations (mastery-approach [MAp], mastery-avoidance [MAv], performance-approach [PAp], performance-avoidance [PAv]), situational motivation (intrinsic motivation, identified regulation, external regulation...2012-01-01
16 Martin, JimTime course of learning to produce maximum cycling powerThe purpose of this investigation was to determine the time course and magnitude of learning effects associated with repeated maximum cycling power tests and to determine if cycle-trained men exhibit different learning effects than active men who are not cycle-trained. Cycle-trained (N = 13) and act...Training; Pedaling; Cycle-trained2000
17 Martin, JimValidation of a mathematical model for road cycling powerThis investigation sought to determine if cycling power could be accurately modeled. A mathematical model of cycling power was derived, and values for each model parameter were determined. A bicycle-mounted power measurement system was validated by comparison with a laboratory ergometer.Aerodynamic drag; Rolling resistance; Air velocity; Gradient; Cycling power; Potential energy; Kinetic energy1998
18 Hargroder, Jessica Lynn; Pham, Ann XuanPreventing falls in the elderlyExercise programs have been found to reduce falls in the elderly. In a study published in 2009, only 8 weeks of exercise training 3 times/week (including calistinics, muscle power, body balance, and walking training ) decreased the incidence of falls in the elderly population by 12% (Iwamoto, et al...Trapeze Interactive Poster2010-05-18
19 Hayes, Bradley T.Lack of neuromuscular origins of adaptation after a long-term stretching programContext: Static stretching is commonly used during the treatment and rehabilitation of orthopedic injuries to increase joint range of motion (ROM) and muscle flexibility. Understanding the physiological adaptations that occur in the neuromuscular system as a result of long-term stretching may provid...2012-01-01
20 Jacques, Kerry M.Arf 1 dissociates from the clathrin adaptor GGA prior to being inactivated by Arf GTPase-activating proteinsThe effectors of monomeric GTP-binding proteins can influence interactions with GTPase-activating proteins (GAPs) in two ways. In one case, effector and GAP binding to the GTP-binding protein is mutually exclusive. In another case, the GTP-binding protein bound to an effector is the substrate for ...2002
21 Eisenman, Patricia A.; Symons, John David; White, Andrea T.Eccentric strain at long muscle length evokes the repeated bout effect.The repeated bout effect (RBE) is a phenomenon characterized by less delayed onset muscle soreness (DOMS) and torque deficit after the second of 2 separate eccentric exercise bouts. Previous investigators have reported that shifting of optimum angle after an initial bout of eccentric exercise mediat...Delayed Onset; Muscle Soreness; Popped Sarcomere; Exercise; Optimum Angle2005-11-19
22 Askew, Eldon W.; Bernstein, Paul S.Serum and macular responses to antioxidant supplementation verus a carotenoid-rich dietary intervention in the elderly.The aim of this study was to observe responses of serum antioxidants, oxidative stress biomarkers, and macular carotenoid pigments to antioxidant supplements or dietary intervention in a single-masked, randomized, pilot clinical study of elderly subjects receiving antioxidant supplements or a dietar...Macula; Serum Carotenoids; Zeaxanthin2006-02-01
23 Newton, MariaYouth perceptions of a caring climate, emotional regulation and psychological well-beingThe purpose of this study was to examine the meditational effect of perceived affective self-regulatory efficacy on the relationship between youth sport participants? perceived caring climate and their mental well-being. Three hundred and 95 participants (mean age = 11.80 ? 1.54) from a National Yo...2009
24 Newton, MariaInfluence of leader efficacy and emotional intelligence on personal caring in physical activityScholars in youth development, education, and sport are examining the formative contexts of classrooms, music halls, and playing fields to gain a better understanding of positive development in children. Of particular interest are the leaders in these contexts (e.g., teachers, conductors, and coach...Sport; Motivation; Pedagogy; Leader efficacy; Emotional intelligence2007
25 Newton, MariaThe influence of a simulated 'pep talk' on athlete inspiration, situational motivation, and emotionCoaches routinely use pep talks to inspire and motivate athletes, but the efficacy of this strategy has not been empirically examined. Conceptually based on Thrash and Elliot's [3, 4] inspiration research this study explored the impact of a simulated pep talk on inspiration, inspiration to perform, ...2011-01-01
1 - 25 of 33