Kinesiology Commons^™

Effects Of Neuromuscular Training On The Dynamic Restraint Characteristics Of The Ankle, Christena Linford

Theses and Dissertations

Objective: To examine the influence of a 6-week training program on the electromechanical delay (EMD) and reaction time of the peroneus longus muscle.

Design and Setting: The study was guided by a 2 x 2 factorial design with repeated measures on the time factor. The independent variables for this study were group (training and control) and time (pre- and post-training). Dependent variables for this study were muscle reaction time and electromechanical delay of the peroneus longus muscle.

Subjects: Thirty-six healthy, physically active, college-age (21.8 ± 2.3 yr) male and female (M = 14, F = 28, height = 173.7 ± …

The Effects Of Choice On Student Motivation And Physical Activity Behavior In Physical Education, Jillian Ward

Theses and Dissertations

Public school physical educators have the opportunity to help students understand the importance of engaging in regular physical activity in order to combat America's obesity problem. However, students are often unmotivated to participate in their physical education classes. Providing students with an autonomy supportive environment increases intrinsic motivation. Self-determination theory states that higher levels of intrinsic motivation should lead to an increase in behavior, or higher activity levels in a physical education class. This study examined (a) the effects of increased autonomy on self-determination, and (b) the effects of increased autonomy on physical activity levels. Seventh and eighth grade girls …

The Impact Of A University Wellness Requirement On Student Nutrition And Physical Activity Behavior, Lisa Marie Blaser

Theses and Dissertations

Purpose: The Brigham Young University General Education Wellness Program has three options available to students to fulfill the programs requirement. The purpose of this study was to assess the impact of these three wellness options. Specifically we wanted to know; does the university wellness requirement affect student nutrition and physical activity behaviors and do the various options available differ in their abilities to impact student nutrition and physical activity behaviors?

Methods: A three-group pretest/posttest design was used and a survey was administered, at both the beginning and end of the semester, to all students enrolled in HEPE 129, live and …

Reporting Quality Of Randomized Trials In The Diet And Exercise Literature For Weight Loss, Cheryl A. Gibson, Erik P. Kirk, James D. Lecheminant, Bruce W. Bailey Jr, Guoyuan Huang, Joseph E. Donnelly

Faculty Publications

Background

To adequately assess individual studies and synthesize quantitative research on weight loss studies, transparent reporting of data is required. The authors examined the reporting quality of randomized trials in the weight loss literature, focusing exclusively on subject characteristics as they relate to enrollment, allocation, and follow-up.

Methods

An extensive literature review, which included a computerized search of the MEDLINE database, manual searches of bibliographic references, and cross-referencing of 92 review articles was conducted. A checklist, based on CONSORT recommendations, was used to collect information on whether or not authors reported age, gender, co-morbid disease, medication use, race/ethnicity, and postmenopausal …

Effects Of Video Modeling On Skill Acquisition In Learning The Golf Swing, Joshua L. Smith

Theses and Dissertations

The purpose of this study was to determine the effects of video modeling on skill acquisition in learning the golf swing. One-hundred-eight college students participated in this study. All participants were pre-tested via videotaping to determine initial skill level. The pre-test videotaping was analyzed using DartTrainer software. Each participant was randomly assigned to one of three groups (1) control (2) single-view or (3) multi-view. Participants in the control group viewed a compact disc (CD) with a putting demonstration repeated 40 times. The participants in the single-view group viewed a CD with a front view only demonstration repeated 40 times of …

A Biomechanical Analysis Of Sprinters Vs. Distance Runners At Equal And Maximal Speeds, Tyler D. Bushnell

Theses and Dissertations

In the sport of track and field, sprinting and distance running represent two major categories of athletes. Sprinting is associated with power and speed, whereas distance running focuses on the economy of movement. With distance running there are elements of sprint technique that overlap. With distance events, there comes a time near the end of the race where economy gives way to speed. If the distance runners knew how to alter their technique in a way to become more sprint-like, this process could possibly be more successful. PURPOSE: This study compared the differences in technique between sprinters and distance runners …

The Long Term Effects Of Short-Wave Diathermy And Long-Duration Static Stretch On Hamstring Flexibility, Daniel Joseph Graham

Theses and Dissertations

Objective: To compare changes in hamstring flexibility from treatments of pulsed short- wave diathermy and prolonged stretch versus sham diathermy and prolonged stretch and control and to observe how long those changes last.

Background: Heat and stretch techniques have been touted for years. To date, the effect of short-wave diathermy and hamstring stretching has not been thoroughly studied. Because diathermy heats a large area and penetrates deep into the muscle, use of this device prior to or during hamstring stretching may increase flexibility and these gains may last longer.

Study Design: A randomized, counterbalanced 3x2x6 repeated measures design. The 3 …

Effects Of Different Jumping Programs On Hip And Spine Bone Mineral Density In Pre-Menopausal Women, J. Eric Strong

Theses and Dissertations

Sixty premenopausal women (age 25-50) finished a 16 week randomized controlled trial looking at the effects of different jump programs on hip and spine bone mineral density (BMD). Subjects were randomly assigned to a control group or one of two jumping groups. The Jump 10 group performed 10 jumps with 30 seconds of rest between jumps, twice daily, while the Jump 20 group performed the same protocol but with 20 jumps. At 8 weeks, BMD percent change (%Δ) at the hip was significantly different among groups when age, weight change, and subject compliance were simultaneously adjusted. In particular, the Jump …

The Effects Of Three Different Ice Bath Immersion Times On Numbness (Sensation Of Pressure), Surface Temperature, And Perceived Pain, Norma E. Johnson

Theses and Dissertations

Objectives: Determine if numbness differs in magnitude and duration between 10-, 15-, and 20-min ice bath immersions, when temperature was held constant. Design: Dependant variables; sensation of pressure (g), perceived pain (cm), and skin temperature (º C). A repeated measures 3 X 19 factorial guided this study. Conditions were 10-, 15-, and 20-min ice bath immersions. Measurement times were before immersion, 1, 3, 5, 7, 9, 10, 11, 13, 15, 17, 19, and 20 min immersion, and 1.5, 3, 5, 7, 9 and 11 min postimmersion. Subjects: Eighteen college-aged volunteers. Measurements: Subjects participated in three ice bath immersions (10, 15, …

Variance In Percent Body Fat Between And Within Families As Measured By Dual-Energy X-Ray Absorptiometry, Laurel Anne Kelsey

Theses and Dissertations

Objective: To determine the variance in percent body fat between and within families as measured by dual-energy x-ray absorptiometry (DXA). Methods: Percent body fat (%BF) assessed in 95 females, 120 males (included 54 sets of biological siblings) using DXA. Physical activity questionnaire used to assess current physical activity habits in each participant. Results: Variance in %BF between and within families is similar. Amount of television viewing and levels of physical activity can affect %BF. Discussion: A model such as the one derived in this study can be a useful tool in intervention programs implemented to decrease obesity.

The Effects Of The Type Of Skill Assessment On The Motivation Of Students In Physical Education, Tyler Gene Johnson

Theses and Dissertations

The purposes of this study were to (1) examine the effects of criterion-referenced (i.e., Programmed Practice Sheet or PPS) and norm-referenced (i.e., standardized) skill assessments on the situational motivation of junior high school physical education students (N = 507), (2) determine if student task and ego dispositions could be affected by the type of skill assessment administered, and (3) determine if having choices of skill level affects student situational motivation and perception of autonomy support. Student situational motivation, task and ego disposition, and sense of autonomy were assessed using the Situational Motivation Scale (SIMS), Perception of Success Questionnaire (POSQ), and …

The Effect Of Wearing Mouthguards On Vo2, Ventilation, And Perceived Exertion At Two Different Exercise Intensities, Jeffrey Scott Hurst

Theses and Dissertations

Objective: To assess the effects of wearing a protective mouthguard during exercise on ventilation and oxygen consumption.
Design and Setting: All participants performed a graded maximal exercise test on a cycle ergometer to determine peak oxygen consumption (VO2peak). Each participant also performed 6 submaximal exercise tests while wearing one of two facemasks (nasal or non-nasal breathing) and one of three mouthguard conditions (no mouthguard, boil and bite, custom-fit). Steady-state VO2, rate of perceived exertion (RPE), and other ventilatory values were measured at 60% and 80% of VO2max during each submaximal exercise test. All 6 submaximal exercise tests were completed within …

Effects Of A Tape Cast, Air-Stirrup, And An Air-Stirrup Applied Over A Taped Ankle On Dynamic Ankle Inversion, Justin K. Freeman

Theses and Dissertations

Objective: To compare the tape cast, and an Air-Stirrup/closed basketweave combination to the Air-Stirrup alone with respect to their effects on dynamic ankle inversion.

Design and Setting: This study used a repeated measures design with the independent variables being the exercise bout and the ankle support method (4 levels: no support, Air-Stirrup only, Air-Stirrup/closed basketweave, and tape cast). The 2 dependent variables were total inversion and maximum inversion velocity. Measurements were taken before and after an exercise bout, and all trials were conducted in the university's human performance laboratory.

Subjects: 16 subjects (11 male, 5 female, age 24.3 ± 1.8 …

Examination Of Adolescent Physical Activity And Overweight Levels , Maika Elizabeth Nelson

Theses and Dissertations

Research suggests declines in physical activity may occur after age 12. The purpose of this study was to determine the relationships between adolescent physical activity, BMI, and nutrition. Adolescents, ages 12-17 (N = 223), wore pedometers for 11 consecutive days and completed a nutrition survey, the Youth Adolescent Questionnaire. Activity levels did not differ among the ages of 12-17 year old adolescents, and boys were more active than girls. There was a low, but significant relationship between BMI and physical activity levels for both boys and girls. Energy intake was not related to BMI or physical activity levels in boys …

An Accurate Vo2max Non-Exercise Regression Model For 18 To 65 Year Old Adults, Danielle I. Bradshaw

Theses and Dissertations

The purpose of this study was to develop a regression equation to predict VO2max based on non-exercise (N-EX) data. All participants (N = 100), aged 18-65 years old, successfully completed a maximal graded exercise test (GXT) to assess VO2max (mean ± SD; 39.96 mL∙kg-¹∙min&sup-1; ± 9.54 mL∙kg-¹∙min-¹). The N-EX data collected just before the maximal GXT included the participant's age, gender, body mass index (BMI), perceived functional ability (PFA) to walk, jog, or run given distances, and current physical activity (PA-R) level. Multiple linear regression generated the following N-EX prediction equation (R = .93, SEE = 3.45 mL∙kg-¹∙min-¹, %SEE = …

A New Approach To Modeling Vertical Stiffness In Heel-Toe Distance Runners, Iain Hunter

Faculty Publications

Various models have been used to describe distance running technique. Among these, the mass-spring model is fairly simple to use and apply, but when employed as a model, does not predict vertical force accurately especially when a heel strike is exhibited. The purpose of this article is to demonstrate how the mass-spring model can be modified to provide a simple, yet accurate prediction of ground reaction forces in distance running. Sixteen subjects ran on a force instrumented treadmill. Vertical forces during running at a self-selected pace were collected at 500 Hz. Vertical stiffness was calculated using the conventional mass-spring model …

Physical Activity And Changes In Abdominal Fat Over 18 Months: A Prospective Study Of Middle-Aged Women, Lance Eric Davidson

Theses and Dissertations

Objective: To investigate the extent to which changes in physical activity predict changes in abdominal fat in women over an 18-month period, while statistically controlling the effects of possible confounders, such as age, total body fat percent, and energy intake. Design: A prospective cohort design over 18 months. There was no intervention or treatment. Changes in objectively-measured physical activity were used to predict changes in abdominal fat over the study period. Subjects: 110 healthy, middle-aged women (mean: 41.3±3.3 yrs), primarily Caucasian, educated, and married. Measurements: An objective measure of physical activity (ACT) using CSA accelerometers, worn continuously for 7 consecutive …

Creatine Supplementation Differentially Affects Maximal Isometric Strength And Time To Fatigue In Large And Small Muscle Groups, William J. Vincent, Steven F. Loy, Richard L. Urbanski, Ben B. Yaspelkis

Faculty Publications

Ten physically active, untrained, college-aged males (26.4 ± 5.8 years old) received creatine (CR. 5 g creatine monohydrate + 3 g dextrose) and placebo (PLA, 7 g dextrose) supplementation four times per day for 5 days in a doubleblind, randomized, balanced, crossover design. Performance was assessed during maximal and three repeated submaximal bouts of isometric knee extension and handgrip exercise. CR supplementation significantly increased (p < .05) maximal isometric strength during knee extension but not during handgrip exercise. CR supplementation increased time to fatigue during each of the three bouts of submaximal knee extension and handgrip exercise when compared to the PLA trials. These findings suggest that CR supplementation can increase maximal strength and time to fatigue during isometric exercise. However, the improvements in maximal isometric strength following CR supplementation appear to be restricted to movements performed with a large muscle mass.

Religiosity And Physical Fitness: A Study Of Middle-Aged Mormon Men, Janette Olsen

Theses and Dissertations

Research has related both physical fitness and religiosity to health. This study combined these ideas and examined the relationship between religiosity and physical fitness among middle aged Mormon men (n=110). Mormons are an ideal population for study because of their strict health code. Fitness variables were grip strength, waist/hip ratio, body mass index (BMI) and estimated maximal oxygen uptake (VO2max). A questionnaire assessed level of religiosity and separated subjects into two groups: highly religious (n=35) and less religious (n=14). Moderately religious subjects (n=61) were omitted. A one way ANOVA (between-groups design) found no significant differences in fitness variables between groups. …

Contextual Interference Effects In The Acquisition And Retention Of Motor Tasks By Individuals With Mild Mental Handicaps, William J. Vincent, Mary A. Painter, Kathleen B. Inman

Faculty Publications

The effects of contextual interference on motor skill acquisition and retention were examined in 24 subjects (mean age 13.9 years) with mild mental retardation and 24 chronologically age-matched subjects (mean age 13.11 years) with no disabilities. Subjects from each group were assigned randomly to either a blocked or a random practice schedule. All subjects performed 15 practice trials for each of three different beanbag throwing tasks, 45 trials total. Following a 10-min filled retention interval, 2 trials of each throw (6 total) were performed in a random order by all subjects. Accuracy scores were measured as absolute error from the …

The Level And Determinants Of Burnout Of Mormon Mothers In A Utah Suburban Town, Christina Mordock

Theses and Dissertations

The purpose of this study was to examine burnout in Mormon mothers in a suburban Utah town. Specifically the amount and some determinants of burnout among these Mormon women was studied. A random sample of 266 Mormon mothers completed a questionnaire and a modified version of the Maslach Burnout Inventory (MBI) which consisted of three subscales, (Emotional Exhaustion, Depersonalization, and Personal Accomplishment), and two categories in each subscale (Frequency and Intensity). The subjects scored in the moderately burned out category in each subscale. Significant relationships were found between the amount of burnout and the following: the age of the mother, …

Assessment Of Influence That The Church Of Jesus Christ Of Latter-Day Saints Has On Exercise Habit Of Members Living In Utah County, Gary L. Preston

Theses and Dissertations

This study identified and analyzed the influence the Church of Jesus Christ of Latter-day Saints had on the decision of 309 respondents to exercise. The data obtained from the questionaires were analyzed using chi-square to compare males and females. Within the limitations of this study, the following conclusions were justified: women were more influenced by the LDS Church to exercise than men; LDS males and females exercised more than average American adults; walking, jogging, and aerobic dance were the most popular choices of LDS exercisers; and, there is a need to improve the awareness of LDS members concerning the Physical …

Dance In The Church Of Jesus Christ Of Latter-Day Saints 1830-1940, Karl E. Wesson

Theses and Dissertations

The purpose of this study was to compile a history of dance in The Church of Jesus Christ of Latter-day Saints from 1830 to 1940.
The following subproblems have been investigated:
1. What was the history of dance in The Church of Jesus Christ of Latter-day Saints?
2. What was the philosophy of dance in the LDS Church?
3. What were the dance forms, music, and attire in dance within the LDS church?
4. What was the contribution of the LDS Church towards the preservation of folk dances in America?

Physical Fitness Activities For Latter-Day Saint Missionaries, Robert R. Hughes

Theses and Dissertations

The purpose of this study was to construct a physical fitness program for the needs of full-time missionaries of the Church of Jesus Christ of Latter-day Saints. Two groups, a control and experimental, were selected from the missionaries entering the Language Training Mission on February 16, 1972. The experimental group, consisting of thirty-two subjects, participated in a structured physical fitness class for seven weeks. The control group, consisting of twenty students, participated in no structured program. Each group took a pre- and post-test consisting of four strength factor tests and Cooper's twelve-minute run.

Findings of the study suggested no significant …

A Comparative Study Of The Relative Levels Of Physical Fitness Of Male Lds Missionaries Who Are Commencing And Those Just Concluding Their Missionary Service, Wilford J. Hoglund

Theses and Dissertations

The problem of this study was to determine the relative levels of physical fitness of male L.D.S. Missionaires who were commencing and those just concluding their missionary service. The study was conducted with 50 randomly chosen subjects in each group.

The following conclusions were drawn based on the findings of the study:
1. Returning missionaries were found to have experienced a significant decrease at the .01 level in the following areas: leg and back strength, total strength score, strength quotient, total seconds ran, total endurance score and over-all fitness score.
2. Returning missionaries increased in gripping strength at the .01 …

Home Recreational Activities And The Effect They Have In A Family Home Evening Program, Dwight Rees Butikofer

Theses and Dissertations

The problem in this study was to investigate the effect that home recreational activities have on the attitudes of family members toward a family home evening program. A questionnaire was constructed to gather data regarding these attitudes. The questionnaire was then administered randomly to 250 families residing in Sharon East, Sharon West, Provo, and Provo East Stakes in Provo, Utah. All of the families were members of the Church of Jesus Christ of Latter-day Saints, were families of one or more children and held regular family home evening.

The findings indicate that the children had a more positive attitude toward …

A Review Of Statements Made By Certain Leaders Of The Church Of Jesus Christ Of Latter-Day Saints Which Refer To Various Objectives, Activities, And Desirable Experiences Inherent In Well Organized And Properly Conducted Physical Education And Recreation Programs, G. Newton Deshazo

Theses and Dissertations

The purpose of this study was to locate and examine statements within the writings and recorded speeches of certain leaders of the L.D.S. Church which refer to various objectives, activities, and desirable experiences inherent in well organized and properly conducted physical education and recreation programs.
Data dating from 1830 through 1969 were gathered from the resources and through the services provided by the historical libraries of the L.D.S. Church and Brigham Young University. Available biographical and historical information was presented to denote circumstances possibly influencing the statement itself, the significance of the statement, or the intent of the statement.
Without …