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

Life Sciences Commons

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

Articles 1 - 30 of 30

Full-Text Articles in Life Sciences

A Profile Of Strength And Conditioning Coaches At National Collegiate Athletic Association Division Ii And Iii Member Institutions., Leonard Haggerty Dec 2005

A Profile Of Strength And Conditioning Coaches At National Collegiate Athletic Association Division Ii And Iii Member Institutions., Leonard Haggerty

Electronic Theses and Dissertations

The purposes of this study were to compile demographic characteristics, educational backgrounds, coaching experiences, and duties of strength and conditioning (STC) coaches at NCAA Division II and III institutions, and compare the profile of Division II and III STC coaches to the Martinez (2004) study of Division I-A STC coaches. NCAA Division II and Division III athletic personnel (N=578) received an electronic survey for this study. The return rate from Division II and Division III STC coaches were as follows: Division II, 23 responses (n=175), Division III, 34 responses (n=403). Descriptive statistics were used to examine each ...


Effect Of Long Term Resistance Training On A Senior Population With Trained Peer Leadership, Richard John Burke Iii Dec 2005

Effect Of Long Term Resistance Training On A Senior Population With Trained Peer Leadership, Richard John Burke Iii

Masters Theses

Purpose: The goal of this study was to examine the physical effects of a two-year peer-led resistance training and aerobic program in a group of community dwelling older adults.

Methods: Nine community-dwelling older adults (Age = 81.2 ± 7.1 yrs; Males = 1, Females = 8) were trained for six weeks, monitored and corrected for one year, and then completed two years of peer-led weight training three days/week. Pre and post training physical function assessments included 6-minute walk distance (endurance, functional mobility and gait speed), 8 foot timed up-and-go (balance and agility), back scratch (shoulder flexibility), sit-and-reach (flexibility), number of chair ...


A Study Of The Relationship Of Self-Reported Resistance Training To Lipid Profiles., Melissa Davis Aug 2005

A Study Of The Relationship Of Self-Reported Resistance Training To Lipid Profiles., Melissa Davis

Electronic Theses and Dissertations

The primary purpose of this study was to determine the relationship of self-reported resistance training to lipid profiles. The study consisted of 10 subjects between the ages of 19 and 35. Participants were assigned to an exercise group or control group based on self-reported resistance training and according to ACSM standards. After means were determined for the data gathered, the exercise group had lower averages of weight, percent body fat, total cholesterol, low-density lipoprotein and triglycerides, as well as, a higher average of high-density lipoproteins. Two sample t-tests were performed to determine significance. It was determined that no significant difference ...


The Effect Of Leisure-Based Screen Time On Physical Activity, Mary Dawn Sperry Jul 2005

The Effect Of Leisure-Based Screen Time On Physical Activity, Mary Dawn Sperry

Theses and Dissertations

The purpose of this study was to determine the effect of leisure-based screen time on physical activity. Ninety-four families participated in this six-week study. Each family was randomly assigned to one of three screen time groups: (1) control group (2) 2-hour-limit group or (3) one-hour-limit group. Family members wore a Walk4Life LS 2505® pedometer to measure steps. Daily screen time logs were filled out each night and leisure-based screen time and steps were recorded. Analysis of variance (steps x group) was used to determine differences among the groups. Univariate tests showed there were no significant differences among any of the ...


The Perceptions Of High School Physical Educators On The Benefits Of Block Scheduling In The State Of Utah, Marilyn Miller Jul 2005

The Perceptions Of High School Physical Educators On The Benefits Of Block Scheduling In The State Of Utah, Marilyn Miller

Theses and Dissertations

The purpose of this research was to examine the extent to which the block schedule is being used in Utah high school physical education, and determine teacher's perceptions of block scheduling in teaching physical education. Block scheduling is a new and more efficient way of organizing the school day. NASPE has found the following positive effects in block scheduling: a better learning environment, more access to stronger curriculum, detailed instruction and demonstrations, and more variety in assessment (NASPE, 2000). Although there were several different forms of the block schedule reported, it appears that a majority of physical educators have ...


Time Efficiency In Computer Assisted Direct Observation Of Physical Activity Using Sofit, Trisha Anderson Jul 2005

Time Efficiency In Computer Assisted Direct Observation Of Physical Activity Using Sofit, Trisha Anderson

Theses and Dissertations

Having valid and reliable methods for assessing physical activity levels is critical to understanding physical activity patterns. Direct observation is a widely used technique for obtaining contextually rich data on physical activity levels in physical education classes. One major limitation of direct observation is that it is time intensive. The use of digital video editing software programs may lessen the amount of time needed to gather the data. The purpose of this study was to compare the amount of time needed to obtain SOFIT (System for Observing Fitness Instruction Time) physical activity data using the traditional paper and pencil method ...


Soft Drink Consumption And Changes In Body Composition In 170 Women: A 4-Year Prospective Study, Jared Michael Tucker Jul 2005

Soft Drink Consumption And Changes In Body Composition In 170 Women: A 4-Year Prospective Study, Jared Michael Tucker

Theses and Dissertations

Background: In recent history, there have been significant increases in both soft drink consumption and the prevalence of obesity throughout the developed world. To help curb the obesity epidemic, a better understanding of the behaviors contributing to weight and fat gain is vital.

Objective: To examine the extent to which soft drink consumption is predictive of changes in body composition in middle-aged women over a 4-year period, while statistically controlling for age, energy intake, physical activity, and menopause status.

Design: A prospective cohort design over 48 months with no intervention. Self-reported soft drink consumption was used to predict changes in ...


The Association Between Changes In Body Fat, Body Weight And Serum C-Reactive Protein: A Prospective Study, Benjamin Thomas Bikman Jul 2005

The Association Between Changes In Body Fat, Body Weight And Serum C-Reactive Protein: A Prospective Study, Benjamin Thomas Bikman

Theses and Dissertations

Objective- To investigate the extent to which changes in body fat percentage (BF%) and weight (BW) relate to changes in C-reactive protein (CRP) in women, while statistically controlling for possible confounders, such as age, initial body weight, and menopause status.

Methods and Results- A cohort of 150 free-living subjects was followed prospectively over a 2½-year period. BF% was measured using dual energy X-ray absorptiometry (DEXA), while BW was determined with a calibrated, electronic scale. There was no significant relationship between changes in BF% and CRP, regardless of age, initial BW, and menopause status. However, changes in BW were predictive of ...


Whole-Body Vibration And Its Effects On Electromechanical Delay And Vertical Jump Performance, Deja Lee Stevenson Jun 2005

Whole-Body Vibration And Its Effects On Electromechanical Delay And Vertical Jump Performance, Deja Lee Stevenson

Theses and Dissertations

The purpose of this study was to determine the effects of whole-body vibration on electromechanical delay and vertical jump performance. Twenty college aged subjects participated in 10 intervals of whole-body vibration (WBV) at a frequency of 26 Hz and amplitude of 5 mm. Each interval consisted of 60 s of WBV in a half-squat followed by 60 s of rest. After 5 intervals, subjects had 6 min of rest before the final 5 intervals. Each subject also participated in the control which included the same 10 intervals in a half-squat without the WBV. Tests were conducted to assess electromechanical delay ...


The Effect Of Teaching With Acoustical Guidance (Tag) On The Mastery Of A Grand Rond De Jambe (En Dehors) And A Ballotte, Heidi Dutch Schneider May 2005

The Effect Of Teaching With Acoustical Guidance (Tag) On The Mastery Of A Grand Rond De Jambe (En Dehors) And A Ballotte, Heidi Dutch Schneider

Theses and Dissertations

This study examined the effect of Teaching with Acoustical Guidance (TAG) on the mastery of two ballet skills, the Grand Rond de Jambe (en dehors) and a Ballotte'. Dance technique classes still follow traditional methods of teaching and mastering skills without much integration of motor learning concepts. TAG Teach is a method that uses positive reinforcement, shaping, and a hand held device that produces an acoustic sound to mark correct behaviors at the moment they occur. The purpose of this study was to determine if TAG was a faster and more effective technique to aid in the mastery of two ...


The Difference In Hr Response Between Track And Treadmill Running At A Pre-Determined, Self-Selected Pace, Marisha Corey Mar 2005

The Difference In Hr Response Between Track And Treadmill Running At A Pre-Determined, Self-Selected Pace, Marisha Corey

Theses and Dissertations

The purpose of this study was to determine whether or not differences exist in heart rate (HR) between jogging on the track and jogging on the treadmill at the same speed. Twenty-four college-age (19-31 years old) male (n = 12) and female (n = 12) recreational runners volunteered to participate in this study. Each participant performed a maximal graded exercise test (GXT) and four exercise sessions. During the first exercise session, participants completed a 1-mile steady-state jog on either the track or treadmill at a self-selected submaximal pace that could be maintained for 30 minutes. The following three exercise sessions were completed ...


Effects Of Same-Day Strength Training On Serve Performance In Female Collegiate Tennis Players, Staci Kayleen Reynolds Mar 2005

Effects Of Same-Day Strength Training On Serve Performance In Female Collegiate Tennis Players, Staci Kayleen Reynolds

Theses and Dissertations

The purpose of this study was to evaluate the effects of same-day strength training on velocity and accuracy of a tennis serve among five female Division I intercollegiate athletes at the second and sixth week of a strength training program. Velocity and accuracy of 20 tennis serves were measured approximately four hours after a morning split-body (lower legs and trunk) strength training session termed the lift-day (LD) and were compared to measures taken on days that no lifting took place, termed the non-lift day (NLD). For each test day, velocity was multiplied by accuracy to provide an overall serve performance ...


Differences In Maximal Speed Running Between Baseball Players And Sprinters, Erin Kathleen Robinson Mar 2005

Differences In Maximal Speed Running Between Baseball Players And Sprinters, Erin Kathleen Robinson

Theses and Dissertations

The purpose of this study was to examine the differences in technique between sprinters and baseball players while running at maximal speeds. 20 male NCAA Division I athletes participated; ten members of the track and field team specializing in the 100 m or 200 m sprint or the 100 m hurdles and ten members of the baseball team. Each subject performed a maximal effort 80 m sprint while their sprint times were recorded every 10 m starting at the 20 m mark. Each subject was filmed at they ran through a set10 m marking that included where they reached their ...


The Effects Of Choice On Student Motivation And Physical Activity Behavior In Physical Education, Jillian Ward Mar 2005

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 ...


Effects Of Neuromuscular Training On The Dynamic Restraint Characteristics Of The Ankle, Christena Linford Mar 2005

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 ± 11.2 ...


The Impact Of A University Wellness Requirement On Student Nutrition And Physical Activity Behavior, Lisa Marie Blaser Mar 2005

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 ...


Excess Postexercise Oxygen Consumption And Interval Training, Shinichi Asano Jan 2005

Excess Postexercise Oxygen Consumption And Interval Training, Shinichi Asano

Theses, Dissertations and Capstones

The effect of exercise intensity on excess postexercise oxygen consumption (EPOC) was determined in18 to 30 year old apparently healthy individuals. Subjects participated in 3 different exercise sessions; aerobic exercise, interval exercise (IE) and high intensity interval exercise (HIIE), on separate days. EPOC was measured one hour after each exercise while subjects were in supine position. ANOVA with repeated measurements was used to assess differences. The mean values (± SEM) for EPOC of aerobic exercise, IE and HIIE were 2.106(± 0.219), 2.846 (± 0.309) and 4.969 (± 0.522) l·hour -1. There was no significant difference (p < 0.05) between mean EPOC of aerobic exercise and IE, however, a significant difference (p < 0.05) was found in mean EPOC of HIIE when it was compared with both aerobic exercise and IE. These data suggest that exercise intensity has a significant effect on EPOC.


Factors That Influence The Confidence Of Elite Junior Olympic Female Volleyball Players, Carolyn Bell Jan 2005

Factors That Influence The Confidence Of Elite Junior Olympic Female Volleyball Players, Carolyn Bell

Ithaca College Theses

The purpose of this study was to assess and describe those factors that influenced the confidence level of elite level Junior Olympic female volleyball players 18 years of age.

[This is an excerpt from the abstract. For the complete abstract, please see the document.]


Comparison Of Rowing On A Stationary And Dynamic Ergometer, Aaron Benson Jan 2005

Comparison Of Rowing On A Stationary And Dynamic Ergometer, Aaron Benson

Ithaca College Theses

The purpose of this study was to examine the differences between rowing on a stationary (SE) and dynamic (DE) ergometer.

[This is an excerpt from the abstract. For the complete abstract, please see the document.]


Comparing Energy Expenditure Between The Treadmill And Elliptical Trainer, Brian Patrick Wallace Jan 2005

Comparing Energy Expenditure Between The Treadmill And Elliptical Trainer, Brian Patrick Wallace

Ithaca College Theses

The purpose of this study was to compare physiological responses during ET [elliptical trainer] and treadmill (TM) exercise at three intensities gauged using RPE.

[This is an excerpt from the abstract. For the complete abstract, please see the document.]


Physical Function And Health Related Quality Of Life In Culturally Diverse Elders: Evidence Of Environmental Press, Robyn M. Bossier Jan 2005

Physical Function And Health Related Quality Of Life In Culturally Diverse Elders: Evidence Of Environmental Press, Robyn M. Bossier

LSU Master's Theses

The purpose of this project was to identify group differences in physical function and HRQL between older adults living in different environments, and to compare information from these groups to data from a random sample of elders pulled from the general population. METHODS: Seventy-eight older adults were evaluated for physical function using the continuous-scale physical functional performance test (CS-PFP) and HRQL using the SF-36 v.2. Subjects were 26 predominantly African American participants (LOW group; age 72.2 ± 8.1 years), 26 Caucasian adults (HIGH group; age 77.6 ± 4.8 years), and 26 adults selected from a population-based study ...


L-Glutamine Supplementation: Effects On Recovery From Exercise, Tavis Joseph Piattoly Jan 2005

L-Glutamine Supplementation: Effects On Recovery From Exercise, Tavis Joseph Piattoly

LSU Master's Theses

Clinical evidence supports the use for exogenous glutamine in the maintenance of muscle mass and immune system function in critically ill patients. Relatively little research has examined the benefits of glutamine for athletes engaged in heavy exercise training, despite a possible link between overtraining and glutamine. PURPOSE: To examine the influence of Glutamine on time to exhaustion and power after a prolonged bout of exercise. METHODS: Twelve men (Age: 19 to 30y) involved in cycle training were asked to participate in the study. All participants performed a Symptom-Limited Graded Exercise Test (SL-GXT) using the Astrand Cycle protocol. On a subsequent ...


Autonomic Nervous System Modulation Of The Heart Following A High Carbohydrate Liquid Meal, Calynn Davis Bunol Jan 2005

Autonomic Nervous System Modulation Of The Heart Following A High Carbohydrate Liquid Meal, Calynn Davis Bunol

LSU Master's Theses

The involvement of the sympathetic nervous system in the pathology of obesity has long been a debate among researchers. Various methods of capturing the resting sympathetic activity as well as the response of the sympathetic activity elicited by the introduction of a meal or a bout of exercise in both lean and obese individuals have been investigated. This study examined the autonomic modulation of the heart following a high carbohydrate liquid meal in various body types. Twenty-five females with body mass indexes [weight (kg)/height2(m)] ranging from 19.3-39.5 were grouped according to relative basal energy expenditure ...


Differences Between Targeted And Measured Body Weight Support With The Usage Of A Body Weight Support System, Robin Cropper Jan 2005

Differences Between Targeted And Measured Body Weight Support With The Usage Of A Body Weight Support System, Robin Cropper

LSU Master's Theses

The purpose of the study was to determine if the body weight support system (BWSS) maintains the targeted percentage of the subject's body weight support (BWS) during walking and to explore the relationship between unloading and ground reaction force. Sixteen healthy college students (mean age: 22 years old) were recruited as subjects. Tests were conducted using an instrumented treadmill with a BWSS. The BWSS harness was secured around the lower abdomen and pelvis of each subject for effective body weight support. Vertical ground reaction force was measured by force platforms embedded in the treadmill. A force sensor was attached ...


Hemodynamic And Ocular Responses To Caloric Stimulation And Age-Related Disparities, Melissa J. Deveer Jan 2005

Hemodynamic And Ocular Responses To Caloric Stimulation And Age-Related Disparities, Melissa J. Deveer

LSU Master's Theses

Age-related declines in vestibular function affect balance and coordination in older adults. Of perhaps equal importance, but less understood, are the potential implications of vestibular degeneration on cardiovascular homeostasis. Recent evidence suggests that the semi-circular canals, a section of the vestibular system, may be involved in the vestibulosympathetic reflex (VSR), but the extent to which the aging of the semi-circular canals interferes with cardiovascular homeostasis is unknown. Activation of the intact VSR results in increases in tonometric blood pressure (TBP) and heart rate (HR) as well as decreases in cardiac output (Q) and pre-ejection period (PEP). The purpose of this ...


Oxygen Uptake Efficiency Slope And Functional Physical Performance In Elderly Adults, Scott Eric Fuller Jan 2005

Oxygen Uptake Efficiency Slope And Functional Physical Performance In Elderly Adults, Scott Eric Fuller

LSU Master's Theses

Background: The Oxygen Uptake Efficiency Slope (OUES) attained during submaximal treadmill exercise is a reliable index of cardiorespiratory capacity in older adults. This investigation compares OUES values derived during treadmill walking and performance of the Continuous Scale Physical Function Performance test (CS-PFP). Method: A Cosmed portable metabolic cart was used to collect breath gases in 36 older adults (age: 81.8 +/- 7.8 years). Twenty-one subjects performed both the incremental treadmill test and the CS-PFP while an additional 15 subjects performed the CS-PFP, only. Results: The regression of log Ventilation vs. VO2 reveals similar correlations for the CS-PFP and ...


Health And Lifestyle Profiles Across The Lifespan: Results From The Louisiana Healthy Aging Study, Madlyn Irene Frisard Jan 2005

Health And Lifestyle Profiles Across The Lifespan: Results From The Louisiana Healthy Aging Study, Madlyn Irene Frisard

LSU Doctoral Dissertations

Aging and age related disease affects individuals differently. One possible explanation could be free radical production varies among individuals and this variation determines the aging process and the progression of disease. The purpose of this study was to test whether nonagenarians have a relatively low metabolic rate when compared to younger individuals and whether this low metabolic rate is associated with lower levels of oxidative stress and less incidence of disease. Resting metabolic rate (RMR), markers of oxidative stress to lipids, proteins, and DNA, components of the metabolic syndrome, and physical activity level were measured in 3 groups of individuals ...


The Role Of Teachers' Self-Efficacy In Increasing Children's Physical Activity, James Frederick Roth Jan 2005

The Role Of Teachers' Self-Efficacy In Increasing Children's Physical Activity, James Frederick Roth

LSU Doctoral Dissertations

It is well documented that elementary school children do not participate in recommended amounts of physical activity, and that elementary physical education programs generally are unable to insure that children engage in appropriate amounts of activity. One solution to this dilemma is to increase children’s activity levels through collaborative efforts such as whole school programs involving the classroom teachers. If this approach is to be successful, it is important to investigate ways that elementary classroom teachers can be actively involved in school level programs that will ultimately increase children’s physical activity levels. Elementary classroom teachers are often responsible ...


Is The Ability To Regenerate Damaged Skeletal Muscle Genetically Determined? : Can Allelic Variation In The Gene, Pax7, Explain Observed Differences In Recovery Of Force Following Damage By Eccentric Exercise?, Zoran Groznica Jan 2005

Is The Ability To Regenerate Damaged Skeletal Muscle Genetically Determined? : Can Allelic Variation In The Gene, Pax7, Explain Observed Differences In Recovery Of Force Following Damage By Eccentric Exercise?, Zoran Groznica

Theses : Honours

High force eccentric muscle actions, during forcibly lengthening contracting muscle, have been found to produce pronounced muscle damage, especially if exercise is unaccustomed. A cascade of events is initiated in order to repair damaged skeletal muscle tissue including degeneration and regeneration processes. For the duration of muscle regeneration, satellite cells are the primary source of new myoblasts in adult muscle. This process requires activation of quiescent mononucleated satellite cells which proliferate, differentiate and fuse together to form fully functional muscle fibres. The satellite cells are specified by the gene, Pax7, during development. Experimental studies of Pax7 null mice that lack ...


Monitoring Different Types Of Resistance Training Using Session Rating Of Perceived Exertion, Favil Singh Jan 2005

Monitoring Different Types Of Resistance Training Using Session Rating Of Perceived Exertion, Favil Singh

Theses : Honours

The purpose of the study was to evaluate the effectiveness of using the session rating of perceived exertion (RPE) scale to measure physical effort during different types of resistance training exercises and to examine the validity of this scale in rating the entire resistance training sessions of different workouts and intensities. Fifteen male subjects (26.7 ± 4.3 years) performed three different types of resistance training protocols. All protocols consisted of the same five exercises (bench press, back squat, bench pull, shoulder press, and leg extension) but the intensities, rest periods, and numbers of repetitions were different. The strength protocol ...