Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Kinesiology

2014

Institution
Keyword
Publication
Publication Type
File Type

Articles 1 - 30 of 540

Full-Text Articles in Life Sciences

Spatial Clustering Of Physical Activity And Obesity In Relation To Built Environment Factors Among Older Women In Three U.S. States, Kosuke Tamura, Robin C. Puett, Jaime E. Hart, Heather A. Starnes, Francine Laden, Philip J. Troped Dec 2014

Spatial Clustering Of Physical Activity And Obesity In Relation To Built Environment Factors Among Older Women In Three U.S. States, Kosuke Tamura, Robin C. Puett, Jaime E. Hart, Heather A. Starnes, Francine Laden, Philip J. Troped

Kinesiology

Background

Identifying spatial clusters of chronic diseases has been conducted over the past several decades. More recently these approaches have been applied to physical activity and obesity. However, few studies have investigated built environment characteristics in relation to these spatial clusters. This study’s aims were to detect spatial clusters of physical activity and obesity, examine whether the geographic distribution of covariates affects clusters, and compare built environment characteristics inside and outside clusters.

Methods

In 2004, Nurses’ Health Study participants from California, Massachusetts, and Pennsylvania completed survey items on physical activity (N = 22,599) and weight-status (N = 19,448). The ...


Effects Of Barbell Deadlift Training On Submaximal Motor Unit Firing Rates For The Vastus Lateralis And Rectus Femoris, Matt S. Stock, Brennan J. Thompson Dec 2014

Effects Of Barbell Deadlift Training On Submaximal Motor Unit Firing Rates For The Vastus Lateralis And Rectus Femoris, Matt S. Stock, Brennan J. Thompson

Kinesiology and Health Science Faculty Publications

Previous investigations that have studied motor unit firing rates following strength training have been limited to small muscles, isometric training, or interventions involving exercise machines. We examined the effects of ten weeks of supervised barbell deadlift training on motor unit firing rates for the vastus lateralis and rectus femoris during a 50% maximum voluntary contraction (MVC) assessment. Twentyfour previously untrained men (mean age 524 years) were randomly assigned to training (n515) or control (n59) groups. Before and following the intervention, the subjects performed isometric testing of the right knee extensors while bipolar surface electromyographic signals were detected from the two ...


Determination Of The Effectiveness Of The Zetroz Wearable Ultrasound Device (Sam) For The Post-Exercise Clearance Of Lactic Acid, Theresa Rakiewicz Dec 2014

Determination Of The Effectiveness Of The Zetroz Wearable Ultrasound Device (Sam) For The Post-Exercise Clearance Of Lactic Acid, Theresa Rakiewicz

Senior Honors Theses

Athletes performing in multiple round competitions seek rapid recovery from exercise and restoration of optimal muscle function. The increase in blood lactic acid concentration while performing intense exercise has been well documented; however interventions have not demonstrated the ability to significantly improve lactate removal beyond that of passive recovery. Low intensity therapeutic ultrasound has been previously shown to increase blood flow, fluid circulation, vasodilation, and cellular metabolism. PURPOSE: To determine if wearing a long-duration ultrasound therapy device on muscles can accelerate lactic acid kinetics to promote clearance from blood. METHODS: A randomized, double blind cross-over study utilizing a lactate-inducing circuit ...


The Role And Impact Of Student Leadership On Participants In A Healthy Eating And Physical Activity Programme, Lila Gutuskey, Nate Mccaughtry, Bo Shen, Erin Centeio, Alex Garn Dec 2014

The Role And Impact Of Student Leadership On Participants In A Healthy Eating And Physical Activity Programme, Lila Gutuskey, Nate Mccaughtry, Bo Shen, Erin Centeio, Alex Garn

Kinesiology, Health and Sport Studies

Objective: In the USA there are rising rates of obesity among children, at least in part due to unhealthy eating and physical inactivity. Implementing school-based health interventions with elementary school children focused on youth empowerment could lead to improved health environments and behaviours. The purpose of the present study was to examine elementary students’ perceptions of participating in a student-led school health improvement team. Empowerment theory guided the research, specifically the concept of including participants in programming to identify possible individual-level outcomes. Design: Qualitative research. Setting: One US elementary school formed a student-led school health improvement team, focusing on healthy ...


Neuromuscular Adaptations To Voluntary Contraction Following Postactivation Potentiation, Cameron B. Smith Dec 2014

Neuromuscular Adaptations To Voluntary Contraction Following Postactivation Potentiation, Cameron B. Smith

Electronic Thesis and Dissertation Repository

Muscle contractile properties are history-dependent, and following a conditioning contraction, muscle tissue may be fatigued (slower, weaker) or potentiated (faster, stronger). Postactivation potentiation of evoked contractions, such as the electrically stimulated twitch, has been thoroughly studied. However, the effects of potentiation on voluntary contraction are not well understood, and prior study is largely equivocal.

The following studies propose to determine the effects of potentiation during 1) submaximal contractions at different muscle lengths 2) ballistic contractions following tetanic and voluntary conditioning, and 3) motor evoked potentials following tetanic and voluntary conditioning contractions. Evoked twitch potentiation was assessed with all of the ...


The Effects Of An Exercise Program On Cardiovascular Risk Factors At A Faith Based University, Annisa R. Albury, Jacob D. Forsythe, Greggory M. Thorpe Dec 2014

The Effects Of An Exercise Program On Cardiovascular Risk Factors At A Faith Based University, Annisa R. Albury, Jacob D. Forsythe, Greggory M. Thorpe

Kinesiology and Allied Health Senior Research Projects

Physical inactivity is a significant risk factor for heart disease, hypertension, stroke, diabetes, and certain types of cancer according to the World Health Organization (WHO, 2013). A simple form of physical activity that improves health and also has a high adherence rate is walking (Dishman, 1994). Walking has been shown to lower fasting blood glucose, decrease total cholesterol, and reduce hypertension when introduced to college faculty and staff as part of a comprehensive wellness program (Haines, 2007). PURPOSE: To determine if a walking program would lower cardiovascular risk factors for faculty and staff who adhere to a faith based values ...


Motor Control: Theory And Practical Application For The Youth Basketball Coach, Lucas R. Deckard Dec 2014

Motor Control: Theory And Practical Application For The Youth Basketball Coach, Lucas R. Deckard

Honors College Capstone Experience/Thesis Projects

BACKGROUND: Motor control, learning, and development need to be considered by any coach working with youth athletes. When coaches fail to consider these areas, they may be more likely to create practice plans, which omit the innate physiological and psychological differences between youth and adult participants, lessen the development of sport-specific skills, and may create less enjoyable sporting experiences for young players. PURPOSE: The aims of this literature review were to explore recent scientific literature linking motor behavior/development to application in youth basketball, identify major themes, and summarize these concepts in a manner useful to coaches in this environment ...


Intergenerational Service-Learning With Exercise Science Students, Mckinze R. Vowels Dec 2014

Intergenerational Service-Learning With Exercise Science Students, Mckinze R. Vowels

Honors College Capstone Experience/Thesis Projects

Exercise science professionals often work with older adults to help maintain function and independence. Ageism may begin during undergraduate training, as most have not interacted with older adults. Intergenerational service-learning (ISL) may be a useful pedagogy to facilitate interactions with older adults. PURPOSE: To determine if exercise science students’ knowledge of older adults and ageism are significantly improved by incorporating ISL into an exercise science course. METHODS: Students (n =10) enrolled in Exercise and Aging and from two additional exercise science courses (n = 17) completed pre and post assessments of attitudes towards and knowledge of older adults. Students implemented Bingocize ...


Validation Of The Multi-Segment Foot Model With Bi-Planar Fluoroscopy, Aïda Valevicius Dec 2014

Validation Of The Multi-Segment Foot Model With Bi-Planar Fluoroscopy, Aïda Valevicius

Electronic Thesis and Dissertation Repository

A multi-segment foot model (MSFM) is a useful tool for measuring foot joint kinematics although soft-tissue artefact is often present. Quantifying this error is needed to evaluate the accuracy of this model. This study validated the MSFM against bi-planar radiostereometric analysis (RSA) fluoroscopy. Heel-strike, mid-stance, and toe-off events during the stance phase were compared between motion capture and fluoroscopy. Rise/drop of the medial longitudinal arch showed a significant difference (p < 0.05) during toe-off, but no significant difference during heel-strike or mid-stance. Hindfoot supination/pronation and internal/external rotation, and forefoot supination/pronation motions showed no significant difference between the two techniques. The lack of significant difference will allow the MSFM to be used as a sufficiently accurate technique for measuring foot joint motions.


A Movement Tool Kit For The Divergent And Convergent Cps Guidelines: Instruction Cards And Activity Floor Mats, Adela Vangelisti Dec 2014

A Movement Tool Kit For The Divergent And Convergent Cps Guidelines: Instruction Cards And Activity Floor Mats, Adela Vangelisti

Creative Studies Graduate Student Master's Projects

A Movement Tool Kit for the Divergent and Convergent CPS Guidelines:

Instruction Cards and Activity Floor Mats

Movement is as natural to humans as breathing is, and, yet, passivity starts early in schools. We are taught to sit still and in silence for long periods of time. By the time we reach adulthood and enter the workforce, we have almost forgotten our sense of embodiment. This lack of movement is counter-productive, not only to learning but to the development of creativity as well. For this project, I designed a tool to recapture the joy and playfulness of movement. Furthermore, the ...


The Influence Of Observational Learning On Self-Reported Physical Activity, Self-Efficacy For Physical Activity, And Health-Related Fitness Knowledge For Physical Activity, Charles Gregory Bullock Dec 2014

The Influence Of Observational Learning On Self-Reported Physical Activity, Self-Efficacy For Physical Activity, And Health-Related Fitness Knowledge For Physical Activity, Charles Gregory Bullock

Dissertations

The obesity epidemic has caused tremendous burden to our economy and healthcare system. Physical activity is one method that can reduce the obesity rate. However, physical activity declines in high school and does not recover. The likelihood of adolescents continuing their involvement in physical activity depends on how they navigate the highs and lows of their physical activity experiences (Feltz & Magyar, 2006). The purpose of this study is to look at the role of observational learning in physical activity and behaviors in an adolescent population. Specifically, this research examines the influence of observational learning on self-reported physical activity, self-efficacy for ...


Knoxville Moves: Log-In And Get Mobile, Courtney Marie Monroe Dec 2014

Knoxville Moves: Log-In And Get Mobile, Courtney Marie Monroe

Doctoral Dissertations

This dissertation evaluated 1) the efficacy of a course-based Internet-technology intervention rooted in social cognitive theory (SCT) for increasing step counts in university faculty and staff, and 2) the effect of online social support tools on step counts among adults using a randomized control trial.

Thirty-six sedentary/insufficiently active university faculty and staff participated in an eight-week, Internet-delivered walking intervention. They received an Omron HJ-720ITC pedometer, personal step goals, and access to a Blackboard LearnTM website comprised of SCTbased features. Outcomes included daily steps, social support, self-regulation, self-efficacy, and outcome expectations. Participants significantly increased their average daily steps (p < 0.001) between baseline and week 1 by 1800. A similar increase in daily steps was observed between baseline and all other intervention weeks (p < 0.001). Social support and self-regulation significantly improved (p < 0.001). These findings helped inform the design of the second study.

In ...


An Optimization Method For Estimating Joint Parameters Of The Hip And Knee, Ben Tesch Dec 2014

An Optimization Method For Estimating Joint Parameters Of The Hip And Knee, Ben Tesch

Theses and Dissertations

Biomechanics, generally speaking, concerns the application of engineeringprinciples to the study of living things. This work is concerned withhuman movement analysis, a subfield of biomechanics, where the methodsof classical mechanics are applied to human movement. This field hascontributed to the general understanding of human movement, and itstechniques are used in the diagnosis and treatment of disease. Centralto the field is the process of measuring human movement. Since classicalmechanics deals with the motion of rigid bodies, and ideal measurementsystem would be able to accurately record the exact pose --- combinedposition and orientation --- of the bones. The techniques that reachthis ideal require exposure ...


Foot And Ankle Kinematic And Lower Extremity Muscle Activity During Descent From Varying Step Heights, Emily Gerstle Dec 2014

Foot And Ankle Kinematic And Lower Extremity Muscle Activity During Descent From Varying Step Heights, Emily Gerstle

Theses and Dissertations

Ankle injuries are common during activities of daily living, particularly in negotiation of steps. Previous studies examining steps have generally focused on the ankle, knee, or hip and descent of multiple steps. Joint motion within the foot, utilizing a multi-segment foot model, during step descent has not been extensively studied. Although peroneal muscle activity differences have been identified between participants with healthy and unstable ankles during static activities, little is known about peroneal activity during activities of daily living. A better understanding of the foot kinematics and muscle activity in persons with uninjured ankles may help future studies elucidate the ...


Role Of Sensation In Altered Phalanx Grip Force In Persons With Stroke, Leah R. Enders Dec 2014

Role Of Sensation In Altered Phalanx Grip Force In Persons With Stroke, Leah R. Enders

Theses and Dissertations

Many individuals experience hand impairment after stroke leading to decreased ability to perform daily living activities. Previous research studies have investigated how stroke survivors' pinch grip control differs from healthy individuals, even though many individuals can only grasp with power grip after stroke. Furthermore, many stroke survivors experience tactile sensory deficit in their paretic limb in addition to motor deficit. It is currently unknown how stroke induced tactile sensory deficit affects power grip force directional control, which is important in terms of preventing object slippage and power grip normal force generation. Additionally it is unknown if power grip could be ...


Investigating The Role Of A Reduced-Instruction Approach In Implicit And Explicit Motor Learning Strategies, Kevin Michael Fisher Dec 2014

Investigating The Role Of A Reduced-Instruction Approach In Implicit And Explicit Motor Learning Strategies, Kevin Michael Fisher

Doctoral Dissertations

Traditional explanations of motor learning contend that skills are learned explicitly in a process in which learners accumulate declarative knowledge and progress through distinct stages of learning (e.g., Fitts & Posner, 1967). More recently, implicit approaches to instruction have been used in an attempt to bypass accumulation of explicit knowledge. Such approaches have been shown to facilitate motor learning compared to explicit instruction by enhancing skill retention and transfer under conditions involving distraction, increased pressure, or physical stress (Masters & Poolton, 2012). One method thought to invoke implicit learning involves instructions in the form of an analogy (Liao & Masters, 2001). Researchers ...


Ground Forces Impact On Release Of Rotational Shot Put Technique, Niklas B. Arrhenius Dec 2014

Ground Forces Impact On Release Of Rotational Shot Put Technique, Niklas B. Arrhenius

Theses and Dissertations

In the shot put throw, the primary power is generated in the form of ground reaction forces as a result of action of the lower extremities (Coh, Stuhec, & Supej, 2008). The purpose of this study was to determine how the ground reaction force and ground contact time during the delivery phase of rotational shot put relates to the predicted distance of the throw. This will allow us to determine the optimal approach of force application for maximum throwing distance (Linthorne, 2001). Eight male subjects were used in this study (age 23 ± 4 y; body mass 123 ± 14 kg; height 190 ± 4 cm; all right handed). Subjects threw three attempts in a custom-built shot put ring where two force plates were located where both feet were expected to land in the delivery. The throws were also filmed using two high-speed cameras at 120 frames/s. These videos gave us the speed, angle and height of release for predicting distance thrown. Results: Peak right leg force during ...


A Randomized Controlled Trial To Study The Effects Of Breakfast On Energy Intake, Physical Activity, And Body Fat In Women, Gabrielle Marie Lecheminant Dec 2014

A Randomized Controlled Trial To Study The Effects Of Breakfast On Energy Intake, Physical Activity, And Body Fat In Women, Gabrielle Marie Lecheminant

Theses and Dissertations

PURPOSE: The purpose of this study was to determine the effects of eating breakfast on energy intake, physical activity, body weight, and body fat in women who were nonhabitual breakfast eaters over a one-month period. METHODS: We tested 49 premenopausal, nonhabitual breakfast-eating women to compare the effects of eating breakfast versus not eating breakfast. Each participant was randomized to one of two conditions: breakfast or no breakfast. Breakfast eaters were required to eat within an hour and a half of awakening and had to be finished eating their breakfast meal by 8:30 A.M. Non-breakfast eaters were defined as ...


Investigating The Effects Of Biochemical And Biophysical Signals On Vascular Smooth Muscle Cell Differentiation, Ruikai Chen Dec 2014

Investigating The Effects Of Biochemical And Biophysical Signals On Vascular Smooth Muscle Cell Differentiation, Ruikai Chen

All Dissertations

In blood vessel engineering, an optimal bioartifical scaffold can be characterized as a 3D tubular structure with high porosity for nutrient diffusion and enough mechanical strength to sustain in vivo dynamic environment. The luminal surface of the scaffold is supposed to have a continuous layer of endothelial cell that is ideally non-immunogenic and non-thrombogenic while the media layer of the construct is assigned for the ingrowth of vascular smooth muscle cell which can provide structural integrity and contractility. While reconstructing endothelial cell layer has been at the center of interest in most polymeric vascular replacements related research, growing VSMCs has ...


Postural Sway And Brain Hemispheric Power Spectral Density Under Different Attentional Focus Conditions, Sharon Jalene Dec 2014

Postural Sway And Brain Hemispheric Power Spectral Density Under Different Attentional Focus Conditions, Sharon Jalene

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to determine the differences, if any, in the root mean square error (RMSE) of postural sway and hemispheric power spectral density (PSD) in the alpha and beta bands (8-12Hz and 12-25Hz) during different conditions of attentional focus (i.e., internal focus (IF), and external focus (EF) and a control condition (C)). Previous studies have shown that the adoption of IF and EF significantly alter motor performance and that EF promotes automaticity (Wulf, 2013). Sports performance and balance studies utilizing EEG spectral analyses report increased alpha oscillations during expert performance and stable balance and increased ...


Application Of The Transtheoretical Model: Assessing Exercise Behavior In African Americans In A Church-Based Setting, Robin Marie White Dec 2014

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 ...


Microvascular Function In Metabolically Healthy Groups Differing In Bmi And Waist Circumference, Nathan R. Earl Dec 2014

Microvascular Function In Metabolically Healthy Groups Differing In Bmi And Waist Circumference, Nathan R. Earl

Theses and Dissertations

BACKGROUND: Microvascular dysfunction (MD: impaired performance of blood flow, tissue perfusion, blood pressure, etc.) is one of the earliest stages in the progression of various chronic diseases. OBJECTIVE: The aim of this study was to determine if a difference in microvascular function existed between two metabolically healthy groups that differed in BMI and waist circumference. DESIGN: This study employed a causal comparative design, with two groups: I) normal weight (n =14, BMI 28 kg/m2). METHODS: Microvascular function was assessed by measuring skin blood flow (SkBF) using laser Doppler flowmetry during postocclusive reactive hyperemia (PORH). The area under the SkBF ...


The Effects Of Worksite Health Promotion Programs On Employee Biometric Data, Jamie M. Pratt Dec 2014

The Effects Of Worksite Health Promotion Programs On Employee Biometric Data, Jamie M. Pratt

Theses and Dissertations

INTRODUCTION: Worksite health promotion programs (WHPP) promote maintenance and changes of health-related behaviors of employees. Some companies opt to contract with a third party provider to implement a WHPP. PURPOSE: This study evaluated the participation rates, availability and use of health coaching, and changes in biometric data over a 2-year time period of employees in 13 companies for whom the WHPP was implemented by Wellness Corporate Solutions (WCS). METHODS: We had 2 years of biometric, health risk appraisal (HRA), or health coaching data on 4,473 employees. The statistical analysis included biometric screening data (percent body fat, body mass index ...


Asymmetrical Pedaling Patterns In Parkinson's Disease Patients., Amanda L. Penko, Joshua R. Hirsch, Claudia Voelcker-Rehage, Philip E. Martin, Gordon Blackburn, Jay L. Alberts Dec 2014

Asymmetrical Pedaling Patterns In Parkinson's Disease Patients., Amanda L. Penko, Joshua R. Hirsch, Claudia Voelcker-Rehage, Philip E. Martin, Gordon Blackburn, Jay L. Alberts

Kinesiology Publications

Approximately 1.5 million Americans are affected by Parkinson's disease (Deponti et al., 2013) which includes the symptoms of postural instability and gait dysfunction. Currently, clinical evaluations of postural instability and gait dysfunction consist of a subjective rater assessment of gait patterns using items from the Unified Parkinson's Disease Rating Scale, and assessments can be insensitive to the effectiveness of medical interventions. Current research suggests the importance of cycling for Parkinson's disease patients, and while Parkinson's gait has been evaluated in previous studies, little is known about lower extremity control during cycling. The purpose of this ...


Kinetic And Kinematic Properties Of D-I Male Sprinters, Zhanxin Sha Dec 2014

Kinetic And Kinematic Properties Of D-I Male Sprinters, Zhanxin Sha

Electronic Theses and Dissertations

The purpose of the study was to explore and determine kinetic and kinematic variables that related to D-I male sprinters maximal running velocity performance. The current study was separated into 3 individual chapters: 1.) Kinematic analysis magnitude of acceleration for braking and propulsion phases during foot contact phase at maximal speed sprinting; 2.) Using kinetic isometric mid-thigh pull variables to predict D-I male sprinters’ 60m performance; 3.) Relationship of whole and lower body angular momentum cancellation during terminal swing phase to sprint performance.

Methods: for sprint measurement all the athletes were participated 2 trials of 100% effort running through 60 ...


Treatment-Associated Changes In Body Composition, Health Behaviors, And Mood As Predictors Of Change In Body Satisfaction In Obese Women: Effects Of Age And Race/Ethnicity, Jim Annesi, Gisele A. Tennant, Nicole Mareno Nov 2014

Treatment-Associated Changes In Body Composition, Health Behaviors, And Mood As Predictors Of Change In Body Satisfaction In Obese Women: Effects Of Age And Race/Ethnicity, Jim Annesi, Gisele A. Tennant, Nicole Mareno

Jim Annesi

A lack of satisfaction with one’s body is common among women with obesity, often prompting unhealthy “dieting.” Beyond typically slow improvements in weight and body composition, behavioral factors might also affect change in body satisfaction. Age and race/ethnicity (African American vs. White) might moderate such change. Obese women (N = 246; M age = 43 years; M BMI = 39 kg/m2) initiating a 6-month cognitive-behaviorally based physical activity and nutrition treatment were assessed on possible predictors of body satisfaction change. At baseline, African American and younger women had significantly higher body satisfaction. The treatment was associated with significant within-group ...


The Reduction Of Metabolic Cost While Using Handrail Support During Inclined Treadmill Walking Is Dependent On The Handrail-Use Instruction, Cory Hofmann, Connor Dougherty, Hagop Abkarian, Michele Fox, Paul Juris Nov 2014

The Reduction Of Metabolic Cost While Using Handrail Support During Inclined Treadmill Walking Is Dependent On The Handrail-Use Instruction, Cory Hofmann, Connor Dougherty, Hagop Abkarian, Michele Fox, Paul Juris

International Journal of Exercise Science

International Journal of Exercise Science 7(4) : 339-345, 2014. Inclined treadmill walking is a commonly performed activity to increase cardiovascular health. Handrail support on a treadmill provides an individual the opportunity to change their posture with respect to the walking surface. Differences in metabolic cost during inclined walking due to postural changes with handrail use are unknown. To test the hypothesis that metabolic cost will differ depending on how handrail support is used, respiratory gas analysis was performed during inclined walking in 13 healthy subjects. Energy expenditure was quantified while each subject walked in four conditions: 5% incline unsupported, 10 ...


Soldier-Relevant Loads Impact Lower Limb Biomechanics During Anticipated And Unanticipated Single-Leg Cutting Movements, Tyler Brown, Meghan O'Donovan, Leif Hasselquist, Brian Corner, Jeffrey Schiffman Nov 2014

Soldier-Relevant Loads Impact Lower Limb Biomechanics During Anticipated And Unanticipated Single-Leg Cutting Movements, Tyler Brown, Meghan O'Donovan, Leif Hasselquist, Brian Corner, Jeffrey Schiffman

Tyler Brown

This study quantified how body borne load impacts hip and knee biomechanics during anticipated and unanticipated single-leg cutting maneuvers. Fifteen male military personnel performed a series of single-leg cutting maneuvers with three different load configurations (light, ~6 kg, medium, ~20 kg, and heavy, ~40 kg). Subject-based means of the specific lower limb biomechanical variables were submitted to repeated measures ANOVA to test the main and interaction effects of body borne load and movement type. With body borne load, stance time (P<0.001) increased, while larger hip (P=0.027) and knee flexion (P=0.004), and hip adduction (P<0.001) moments, and decreased hip (P=0.002) and knee flexion ...


Lactate Threshold Comparison In Anaerobic Vs. Aerobic Athletes And Untrained Subjects, Matt Green, Jared Hornsby, Robert Pritchett, Kelley Pritchett Nov 2014

Lactate Threshold Comparison In Anaerobic Vs. Aerobic Athletes And Untrained Subjects, Matt Green, Jared Hornsby, Robert Pritchett, Kelley Pritchett

International Journal of Exercise Science

International Journal of Exercise Science 7(4) : 329-338, 2014. This study compared VO2 max, lactate threshold (LT) and VO2 at LT (VO2LT) among aerobic athletes (ARA) (n=10), anaerobic athletes (ANA) (n=9) and untrained participants (UTS) (n=7). From a treadmill test to exhaustion, VO2 max and LT (4 mmol·L-1 blood lactate concentration) were assessed. Analysis of variance showed VO2 max (ml·kg-1·min-1) was significantly greater for ARA (67.6 ± 9.4) than ANA (53.4 ± 6.4) and UTS (44.9 + 6.9), with ANA significantly greater than ...


A Multicentre Year-Long Randomised Controlled Trial Of Exercise Training Targeting Physical Functioning In Men With Prostate Cancer Previously Treated With Androgen Suppression And Radiation From Trog 03.04 Radar, Daniel Galvao, Nigel Spry, James Denham, Dennis Taaffe, Prue Cormie, David Joseph, David Lamb, Suzanne Chambers, Robert Newton Nov 2014

A Multicentre Year-Long Randomised Controlled Trial Of Exercise Training Targeting Physical Functioning In Men With Prostate Cancer Previously Treated With Androgen Suppression And Radiation From Trog 03.04 Radar, Daniel Galvao, Nigel Spry, James Denham, Dennis Taaffe, Prue Cormie, David Joseph, David Lamb, Suzanne Chambers, Robert Newton

Prue Cormie

Background: Long-term prostate cancer (PCa) survivors are at increased risk for comorbidities and physical deconditioning. Objective: To determine the effectiveness of a year-long randomised controlled trial of exercise training in PCa survivors >5 yr postdiagnosis on physical functioning. Design, setting, and participants: Between 2010 and 2011, 100 long-term PCa survivors from Trans-Tasman Radiation Oncology Group 03.04 Randomised Androgen Deprivation and Radiotherapy previously treated with androgen-deprivation therapy and radiation therapy were randomly assigned to 6 mo of supervised exercise followed by 6 mo of a home-based maintenance programme (n = 50) or printed educational material about physical activity (n = 50) for ...