Kinesiology Commons^™

Planned Missing Data Designs & Small Sample Size: How Small Is Too Small?, Fan Jia, E. Whitney G. Moore, Richard Kinai, Kelly S. Crowe, Alexander M. Schoemann, Todd D. Little

Kinesiology, Health and Sport Studies

Utilizing planned missing data (PMD) designs (ex. 3-form surveys) enables researchers to ask participants fewer questions during the data collection process. An important question, however, is just how few participants are needed to effectively employ planned missing data designs in research studies. This paper explores this question by using simulated three-form planned missing data to assess analytic model convergence, parameter estimate bias, standard error bias, mean squared error (MSE), and relative efficiency (RE).Three models were examined: a one-time point, cross-sectional model with 3 constructs; a two-time point model with 3 constructs at each time point; and a three-time point, mediation …

Psychometric Support For The Ownership In Exercise And Empowerment In Exercise Scales, E. Whitney G. Moore, Mary D. Fry

Kinesiology, Health and Sport Studies

This study’s purpose was to examine the psychometric properties of two new scales developed to quantitatively measure participants’ ownership in exercise classes and empowerment with respect to exercise. These two outcome measures will compliment Achievement Goal Perspective Theory (AGPT) grounded research to better understand participants’ exercise experiences. College exercise class participants (N = 414; M_age = 21.25 years; 67% female) completed the survey during the last two weeks of a semester. Measurement invariance was assessed by a two-group (i.e., male and female) confirmatory factor analysis and used Mplus’ cluster option to account for the data’s nested nature. Strong …

Pedestrian Head Protection During Car To Pedestrian Accidents: In The Event Of Primary Impact With Vehicle And Secondary Impact With Ground, Vishal Gupta

Wayne State University Dissertations

Current regulations for assessing pedestrian safety use a simplified test setup that ignores many real-world factors. In particular, the level of protection is assessed using a free-motion headform impacting the vehicle's hood at a fixed angle. As such, this test setup does not capture the effect due to the vehicle front-end profile, nor does it comprehend injury due to a possible secondary impact of the pedestrian's head with ground. This thesis aims to numerically simulate vehicle to pedestrian crashes to develop knowledge that may suggest ways to improve safety above and beyond the regulatory tests. Inputs to the simulations include …

Shear Force At Failure And Stiffness Of All-Inside Meniscal Repair Devices, William K. Kesto, Amanda O. Esquivel, David C. Markel

Kinesiology, Health and Sport Studies

The purpose of this study was to determine the failure load and stiffness of various meniscal repair devices. A total of 61 fresh-frozen porcine menisci (medial and lateral) were used for the study. A 30-mm vertical, full-thickness tear was created and repaired using one of three all-inside fixation devices and one inside–out repair in the vertical mattress pattern. We used the MaxBraid (Biomet, Warsaw, IN) inside–out suture as a control. The other devices tested were the Meniscal Cinch (Arthrex, Naples, FL), Ultra FasT-Fix (Smith & Nephew, Andover, MA), and the MaxFire MarXmen (Biomet, Warsaw, IN). In addition, two devices, MaxFire …

The Acute Effects Of Yoga On Executive Function, Neha Gothe, Matthew B. Pontifex, Charles Hillman, Edward Mcauley

Kinesiology, Health and Sport Studies

Despite an increase in the prevalence of yoga exercise, research focusing on the relationship between yoga exercise and cognition is limited. The purpose of this study was to examine the effects of an acute yoga exercise session, relative to aerobic exercise, on cognitive performance. Methods: A repeated measures design was employed where 30 female college-aged participants (Mean age = 20.07, SD = 1.95) completed 3 counterbalanced testing sessions: a yoga exercise session, an aerobic exercise session, and a baseline assessment. The flanker and n-back tasks were used to measure cognitive performance. Results: Results showed that cognitive performance after the yoga …

Concussion Management, Education, And Return-To-Play Policies In High Schools: A Survey Of Athletic Directors, Athletic Trainers, And Coaches, Amanda Esquivel, Sadiq Haque, Patrick Keating, Stephanie Marsh, Stephen Lemos

Kinesiology, Health and Sport Studies

Background: Concussions represent 8.9% to 13.2% of all high school athletic injuries. How these injuries are managed is currently unknown.

Hypothesis: There are differences in concussion management and awareness between boys football, boys ice hockey, and boys and girls soccer.

Study Design: Descriptive epidemiologic study.

Methods: High school athletic directors were contacted via email and asked to complete an online survey with four separate sections for athletic directors, head coaches, team physicians, or certified athletic trainers.

Results: According to coaches, concussion awareness education was provided for football (97%), hockey (65%), and boys and girls soccer …

Underserved Adolescent Girls’ Physical Activity Intentions And Behaviors: Relationships With The Motivational Climate And Perceived Competence In Physical Education, Alex C. Garn, Nate Mccaughtry, Bo Shen, Jeffrey J. Martin, Mariane Fahlman

Kinesiology, Health and Sport Studies

This study investigated underserved adolescent girls’ perceptions of the motivational climate in relationship to their perceptions of competence in urban physical education, self-reported physical activity, and future physical activity intentions. A total of two-hundred-seventy-six underserved (i.e., minority, urban, high poverty) adolescent girls completed questionnaires and a multi-step approach was used to test these relationships. First, a trichotomous model of the perceived motivational climate was tested using confirmatory factor analysis and results suggested a good fit of the data. Structural equation modeling analyses were then used to test both direct and indirect relationships between the perceived motivational climates in physical education, …

Physical Activity And Exercise During Adolescence And Young Adulthood Can Act As Preventative Measures Against The Development Of Osteoporosis In Elderly People, Christine C. Center

Honors College Theses

Osteoporosis, “the silent killer,” is responsible for 8.9 million annual fractures. Although not bound to these factors, osteoporosis typically targets females that are post-menopausal and have a family history of the disease. Osteoporosis is caused by a decrease in bone mass density. Physical activity and exercise and often spoken about when the topic of osteoporosis is discussed because of the impact they have on maintaining bone mass density in an effort to delay osteoporosis. This paper first provides an overview of osteoporosis, explanation of methods of diagnosing osteoporosis, risk factors, complications and treatment for osteoporosis. Topics covered include, bone mass …

Developing Youth's Positive View Of Physical Activity, E. Whitney G. Moore

Kinesiology, Health and Sport Studies

Many youth start withdrawing from voluntary physical activity and physical education programs as they approach adolescence. Developmentally, this is also when youth can become more aware of their ability compared to others, and the amount of work it may take to improve their ability level. This focus on comparative performance standards can be affected by our coaching emphasis. This article highlights the characteristics and impacts of two coaching approaches. Particular emphasis is given to the specific behaviors adolescents have reported as fostering their effort, enjoyment, sportspersonship, and interest in continuing to be active.

Construct-Validity Of The Engagement With Challenge Measure For Adolescents: Structural- And Criterion-Validity Evidence, E. Whitney G. Moore, David Hansen

Kinesiology, Health and Sport Studies

For adolescents, engaging with challenge is a key developmental task, hypothesized to support development of adult-like competencies (e.g., agency and self-direction; Larson, 2000). This study aimed to assess the construct-validity (structural- and concurrent-validity) of a new self-report measure assessing adolescents’ engagement with challenge to help researchers understand how different settings and the conditions in these settings support adolescents’ development. The sample consisted of 337 adolescents in 10 FFA programs along with the adult advisors in each program. Adolescents completed a questionnaire, which included the Engagement with Challenge measure and the following criterion variables: number of contests completed, participation frequency, and …

Urban High-School Girls' Sense Of Relatedness And Their Engagement In Physical Education, Bo Shen, Nate Mccaughtry, Jeffrey J. Martin, Mariane Fahlman, Alex C. Garn

Kinesiology, Health and Sport Studies

A sense of relatedness is individuals' views about themselves as connected to others and worthy of love and respect from others. Using the Self-System Model of Motivational Development as the framework, this study was designed to examine associations of urban high-school girls' relatedness toward teachers and peers with their behavioral and emotional engagements in physical education. Participants (N = 184, ages 15-18) completed questionnaires assessing relevant psychological and behavioral constructs while their teachers also completed corresponding measures during classes. Regression analyses revealed that relatedness toward teachers and peers had direct and interactive roles in both behavioral and emotional engagements. …

Caudate Nucleus Volume Mediates The Link Between Cardiorespiratory Fitness And Cognitive Flexibility In Older Adults, Timothy D. Verstynen, Brighid Lynch, Destiny L. Miller, Michelle W. Voss, Ruchika Shaurya Prakash, Laura Chaddock, Chandramallika Basak, Amanda Szabo, Erin A. Olson, Thomas R. Wojcicki, Jason Fanning, Neha P. Gothe, Edward Mcauley, Arthur F. Kramer, Kirk I. Erickson

Kinesiology, Health and Sport Studies

The basal ganglia play a central role in regulating the response selection abilities that are critical formental flexibility. In neocortical areas, higher cardiorespiratory fitness levels are associated with increased gray matter volume, and these volumetric differences mediate enhanced cognitive performance in a variety of tasks. Here we examine whether cardiorespiratory fitness correlates with the volume of the subcortical nuclei that make up the basal ganglia and whether this relationship predicts cognitive flexibility in older adults. Structural MRI was used to determine the volume of the basal ganglia nuclei in a group of older, neurologically healthy individuals (mean age 66 years, …

Biophysical And Biochemical Factors In The Cellular Microenvironment; Effects On Cell Migration And Invasion, Shalini Menon

Wayne State University Dissertations

Cellular migration is a vital process central to many physiological events including development, immune surveillance and wound healing. However, migration and invasion are not unique to normal physiology, they are also key determinants in the progression of disease states such as cancer. Given the significance of migration it is important that we understand how the process is regulated intracellularly and the various stimuli that can promote it. Even though the role of biochemical factors in mediating migration has been studied extensively, the role of biophysical factors in modulating migration and invasion is less appreciation. The biochemical and biophysical components of …

Football Helmet Fitment And Its Effect On Helmet Performance, Ron Jadischke

Wayne State University Theses

A method and system to objectively quantify helmet fitment was designed and developed. It measures the pressure between the energy-absorbing material in the helmet and the athlete's head. This system is also capable of measuring surface pressure during impact events. A volunteer-based field study was conducted to quantify how helmets were fitting athletes in a real-life setting. The helmets fit athletes in varying degrees of tightness and evenness. Most athletes (59%) had the highest pressures in the frontal area and 29% had the highest pressure in the occipital area. A large-sized helmet on the Hybrid III headform represented how most …

Contact Pressure Distribution Of Osteochondral Defects Of The Knee: Effects Of Non-Vertical Walls, Scott Ensminger

Wayne State University Theses

Purpose: To examine the relationship between well-shouldered osteochondral defects and

defects of different geometries by studying their effects on rim stress concentration and

load redistribution in the human knee.

Methods: Ten fresh-frozen cadaveric knees were mounted at 30° of flexion in a materials

testing machine. Digital electronic pressure sensors were placed in the medial and lateral

compartments of the knee. Dynamic pressure readings were recorded throughout the

loading and holding phases as each knee was loaded to 700N and held for 5 seconds.

Artificial defects were created in each knee to simulate well-shouldered defects and

beveled-defects. Loading was repeated for …

Psychological And Physiological Responses Of Males Viewing Same Gender Advertisements, Phil Dittmer

Wayne State University Theses

Body image has been a well established research topic in the field of sport and exercise psychology. However, most of the literature focuses on female body image and ignores male body image. It has been established by current literature that men react the same way as females when presented with pictures of the ideal body of the same sex; a negative body image affect. However, it is unknown in both females and males if this negative body image affect is a strong enough response to elicit a physiological stress response. This master's thesis serves as an explorative project to bridge …

Measuring Enjoyment Of Physical Activity In Older Adults: Invariance Of The Physical Activity Enjoyment Scale (Paces) Across Group And Time, Sean P. Mullen, Erin A. Olson, Siobhan M. Phillips, Amanda N. Szabo, Thomas R. Wójcicki, Emily L. Mailey, Neha P. Gothe, Jason T. Fanning, Arthur F. Kramer, Edward Mcauley

Kinesiology, Health and Sport Studies

The purpose of this study was to validate the Physical Activity Enjoyment Scale (PACES) in a sample of older adults. Participants within two different exercise groups were assessed at two time points, 6 months apart. Group and longitudinal invariance was established for a novel, 8-item version of the PACES. The shortened, psychometrically sound measure provides researchers and practitioners an expedited and reliable instrument for assessing the enjoyment of physical activity.

Finite Element Reconstruction Of Real World Aortic Injury In Near-Side Lateral Automotive Crashes With Conceptual Countermeasures, Aditya Neelakanta Belwadi

Wayne State University Dissertations

Traumatic rupture of the aorta (TRA) remains the second most common cause of death associated with motor vehicle crashes after brain injury. On an average, nearly 8,000 people die annually in the United States due to blunt injury to the aorta. It is observed that more than 80% of occupants who suffer an aortic injury die at the scene due to exsanguination into the chest. With the advent of more accurate and established human body finite element (FE) models, FE crash reconstruction methods may become a valuable tool when assessing crash scenarios and occupant injury mechanisms.

The current study is …

A Multi-Species Analysis Of Biomechanical Responses Of The Head To A Shock Wave, Richard Bolander

Wayne State University Dissertations

Shock wave induced brain injury remains a field of research that has great consequences for the rehabilitation of soldiers and civilians that are exposed to an explosion. As such, for the research to be successful in developing strategies to mitigate the effects of these injuries, appropriate research methods need to be developed. Animal models are currently employed to understand the brain's response to a shock wave exposure. Unfortunately no criteria have been established that indicates in what way the mechanical inputs that the cells in an animal's brain are subjected to are similar to a human. The purpose of this …

Computational Simulation Of Skull Fracture Patterns In Pediatric Subjects Using A Porcine Model, Christina Devito Wagner

Wayne State University Dissertations

In cases of suspected child abuse with skeletal trauma, it is often the role of the injury biomechanist, forensic pathologist, clinical radiologist, and forensic anthropologist to determine the mechanism of injury when the child victims cannot speak for themselves. This is a challenging task, especially for the head, as comprehensive biomechanical data on skull fracture in infants and children do not currently exist, and frequently the determination regarding cause of injury is based on anecdotal evidence from the medical literature and unsubstantiated eyewitness accounts. The current process may result in unreliable autopsy interpretation and miscarriages of justice due to a …

Psychosocial Aspects Of Physical Activity And Fitness In Special-Population, Minority Middle School Children, Jeffrey J. Martin, Nate Mccaughtry, Anne S. Murphy, Sara Flory, Kimberlydawn Wisdom

Kinesiology, Health and Sport Studies

Special-population research predicting physical activity (PA) and fitness with minority middle school children from at-risk environments is rare. Hence, the purpose of our investigation was to evaluate the ability of important social cognitive and environment-based measures to predict PA and fitness with children with developmental delay, cognitive, and emotional impairments. Children (N = 89, ages 11-15) completed questionnaires assessing social cognitive and environment-based constructs, self report PA, and completed fitness testing. Correlational results supported some hypotheses. The descriptive and correlational results also indicated commonalities with similar research on non special-population minority middle school children from at-risk environments.

Longissimus Muscle Fatigue And Injury Response Due To Electrical Stimulation With Varied Work/Rest Ratios, Peter Wawrow

Wayne State University Dissertations

LONGISSIMUS MUSCLE FATIGUE AND INJURY RESPONSE DUE TO ELECTRICAL STIMULATION WITH VARIED WORK/REST RATIOS

BY

PETER WAWROW

May 2011

Advisor: John Cavanaugh, MD

Major: Biomedical Engineering

Degree: Doctor of Philosophy

The estimated yearly cost of lost-time work injuries and illnesses is $140 billion. The average cost of musculoskeletal disorders (MSDs) exceeds all other claims. These injuries persist in spite of ergonomic interventions addressing known risk factors. Work/rest ratios have not received a significant amount of attention, particularly in low back disorders, and it is hypothesized that the lack of adequate rest within a work cycle may contribute to muscle fatigue …

Secondary Physical Educators' Content Negotiations, Matthew Daniel Ferry

Wayne State University Dissertations

In light of growing concern over the relation between physical inactivity and a variety of biomedical and psychosocial conditions and the disjuncture between larger physical activity culture and secondary school physical education curriculum, the purpose of this study was to examine how middle school physical education teachers negotiated content and curricular decisions. A variety of theories guided this study, including Bourdieu's theories of habitus and field (1977), teacher socialization theory (Lawson, 1983; 1988), teacher ideology (Apple, 2004), teacher emotion (Hargreaves, 1998; McCaughtry, 2004), curriculum as a political text (Pinar, Reynolds, Slattery, & Taubman, 2004), and range of critical and post-structural …

Developing A Caring Coaching Climate Fosters Confidence, E. Whitney G. Moore

Kinesiology, Health and Sport Studies

When athletes buy-in to a positive training climate their training effort, enjoyment, and desire to continue all increase. This article focuses on practical approaches coaches can use today to promote a safe, personalized, and respect-filled atmosphere – integral building blocks for developing a successful caring climate.

Plasticity Of Brain Networks In A Randomized Intervention Trial Of Exercise Training In Older Adults, Michelle W. Voss, Ruchika S. Prakash, Kirk I. Erickson, Chandramallika Basak, Laura Chaddock, Jennifer S. Kim, Heloisa Alves, Susie Heo, Amanda N. Szabo, Siobhan M. White, Thomas R. Wójcicki, Emily L. Mailey, Neha Gothe, Erin A. Olson, Edward Mcauley, Arthur F. Kramer

Kinesiology, Health and Sport Studies

Research has shown the human brain is organized into separable functional networks during rest and varied states of cognition, and that aging is associated with specific network dysfunctions. The present study used functional magnetic resonance imaging (fMRI) to examine low-frequency (0.008 < f < 0.08 Hz) coherence of cognitively relevant and sensory brain networks in older adults who participated in a 1-year intervention trial, comparing the effects of aerobic and nonaerobic fitness training on brain function and cognition. Results showed that aerobic training improved the aging brain’s resting functional efficiency in higher-level cognitive networks. One year of walking increased functional connectivity between aspects of the frontal, posterior, and temporal cortices within the Default Mode Network and a Frontal Executive Network, two brain networks central to brain dysfunction in aging. Length of training was also an important factor. Effects in favor of the walking group were observed only after 12 months of training, compared to non-significant trends after 6 months. A non-aerobic stretching and toning group also showed increased functional connectivity in the DMN after 6 months and in a Frontal Parietal Network after 12 months, possibly reflecting experience-dependent plasticity. Finally, we found that changes in functional connectivity were behaviorally relevant. Increased functional connectivity was associated with greater improvement in executive function. Therefore the study provides the first evidence for exercise-induced functional plasticity in large-scale brain systems in the aging brain, using functional connectivity techniques, and offers new insight into the role of aerobic fitness in attenuating age-related brain dysfunction.

Development Of Lower Extremity Injury Criteria And Biomechanical Surrogate To Evaluate Military Vehicle Occupant Injury During An Explosive Blast Event, Brian J. Mckay

Wayne State University Dissertations

Anti-vehicular (AV) landmines and improvised explosive devices (IED) have accounted for more than half of the United States military hostile casualties and wounded in Operation Iraqi Freedom (OIF). The lower extremity is the predominantly injured body region following an AV mine or IED blast accounting for 26 percent of all combat injuries in OIF (Owens et al., 2007). Detonations occurring under the vehicle transmit high amplitude and short duration axial loads onto the foot-ankle-tibia region of the occupant causing injuries to the lower leg. The current effort was initiated to develop lower extremity injury criteria and biofidelic biomechanical surrogate to …

Multidimensional Self-Efficacy And Affect In Wheelchair Basketball Players, Jeffrey J. Martin

Kinesiology, Health and Sport Studies

In the current study, variables grounded in social cognitive theory with athletes with disabilities were examined. Performance, training, resiliency, and thought control self-efficacy, and positive (PA) and negative (NA) affect were examined with wheelchair basketball athletes (N = 79). Consistent with social cognitive theory, weak to strong significant relationships among the four types of self-efficacy (rs = .22–.78) and among self-efficacy and affect (rs = -.40–.29) were found. Basketball players who were efficacious in their ability to overcome training barriers were also confident in their basketball skills and efficacious in their ability to overcome ruminating distressing thoughts …

The Effectiveness Of Mentoring-Based Professional Development On Physical Education Teachers' Pedometer And Computer Efficacy And Anxiety, Jeffrey J. Martin, Nate Mccaughtry, Pamela Hodges Kulinna, Donetta Cothran, Roberta Faust

Kinesiology, Health and Sport Studies

The purpose of our study was to examine the impact of mentoring-based professional development on physical education teachers' efficacy. Experienced mentor teachers were paired (n = 15) with inexperienced protégé teachers (n = 15) at the beginning of a yearlong intervention study. It was hypothesized that teachers would increase their efficacy to use pedometers and computers to enhance instruction, and reduce their computer anxiety. Repeated-measures ANOVAs for mentors and protégés revealed a variety of significant main effects. We found increases in computer and pedometer efficacy. A second set of repeated-measures ANOVAs based on mentors', protégés', and control groups' …

The Theory Of Planned Behavior: Predicting Physical Activity And Cardiorespiratory Fitness In African American Children, Jeffrey J. Martin, Pamela Hodges Kulinna, Nate Mccaughtry, Donetta Cothran, Joe Dake, Gail Frances Fahoome

Kinesiology, Health and Sport Studies

The purpose of our study was to evaluate the ability of the Theory of Planned Behavior (TPB) to predict African American children’s moderate to vigorous physical activity (MVPA) and cardiorespiratory fitness. Children (N = 548, ages 9–12) completed questionnaires assessing the TPB constructs and MVPA and then had their cardiorespiratory fitness assessed with the Progressive Aerobic Cardiovascular Endurance Run (PACER) test. Commonly used Structural Equation Modeling fit indices suggested the model was an adequate representation for the relationships within the data. However, results also suggested an extended model which was examined and supported. Tests of direct paths from subjective …

A Social Cognitive Perspective Of Physical-Activity-Related Behavior In Physical Education, Jeffrey J. Martin, Pamela Hodges Kulinna

Kinesiology, Health and Sport Studies

The purpose of the current study was to examine student and teacher physical-activity-related behavior using the theory of planned behavior and self-efficacy theory. Although teachers reported an overwhelmingly positive attitude toward teaching physical activity lessons to promote fitness development, they only devoted 4% of their class time to actually demonstrating and promoting fitness. Students were quite sedentary during class spending 61% of class time sitting, standing, or lying down. Using hierarchical regression analyses, teachers' attitudes toward teaching physically active physical education classes accounted for 50% of the variance in teachers' intention. Teachers who demonstrated/promoted fitness and who limited their general …