Life Sciences Commons^™

The Effect Of Floor Sitting Posture On Low-Back Pain, Knee Pain And Hip Pain Among Kuwaiti Men, Sameera H. Al-Jedi

Rehabilitation Sciences Theses & Dissertations

Background and Purpose. Ground resting posture is common in Kuwait and other Arab communities. Kuwaiti men gather daily, especially on weekend nights socializing in the Diwaniya. Diwaniya is a special room in every Kuwaiti house. The Diwaniya is traditionally furnished with seating cushions and pillows. Men are seated on the floor in a tailor-sitting posture for long periods of time. The tailor-sitting posture flexes the trunk. hips, and knees. The flexion position has been shown to decrease the lumbar lordosis and increase joint compression in hips and knees. However there are no studies about the effect of floor sitting …

Patellofemoral Joint Compressive Forces During Backward And Forward Running At The Same Speed, Hesham N. Alrowayeh

Rehabilitation Sciences Theses & Dissertations

A previous study found that the patellofemoral joint compressive force (PFJRF) during backward running was less than during forward running at free speed. Therefore, the purpose of this study was to compare the patellofemoral joint compressive forces during backward and forward running at the same speed. Ten runners (4 females, 6 males) between the age of 20-25 (X=22, SD=2) ran in backward and forward directions at the slow speed of 2.3 mph (1.0 m.sec^-1). Using the inverse dynamic technique the knee extensor moment and PFJRF during the slow backward and forward running were calculated. Results showed that the …

Comparison Of The Emg Activity Of The Supraspinatus And Infraspinatus Muscles During Various Closed Chain Exercises, I-Chen Lin

Rehabilitation Sciences Theses & Dissertations

Advantages of closed chain exercises used in the lower extremity have been well documented. However, the effects of closed chain exercises on the upper extremities have not been studied very much. Thus, the purpose of this research is to analyze the EMG activity of the supraspinatus and infraspinatus muscles and compare the relative amounts of activities by performing different isotonic closed chain exercises and an open chain exercise in normal subjects. The supraspinatus and infraspinatus muscles in 1 o healthy subjects were studied with fine wire, intramuscular, electromyographic electrodes while performing 5 closed chain exercises and a D2. open chain …

Genetic Admixture And Gallbladder Disease In Mexican Americans, Marilyn Tseng, Robert C. Williams, Kurt R. Maurer, Moses S. Schanfield, William C. Knowler, James E. Everhart

Kinesiology and Public Health

Gallbladder disease is a common source of morbidity in the Mexican American population. Genetic heritage has been proposed as a possible contributor, but evidence for this is limited. Because gallbladder disease has been associated with Native American heritage, genetic admixture may serve as a useful proxy for genetic susceptibility to the disease in epidemiologic studies. The objective of our study was to examine thepossibility that gallbladder disease is associated with greater Native American admixture in Mexican Americans. This study used data from the Hispanic Health and Nutrition Examination Survey and was based on 1,145 Mexican Americans who underwent gallbladder ultrasonography …

Analysis Of Serotonin And Postural Instability In Parkinson’S Disease, Sandra Kuniyoshi

Loma Linda University Electronic Theses, Dissertations & Projects

Postural instability is one of the most debilitating symptoms of Parkinson’s disease and the best clinical prognostic indicator of progressive disease. Significant differences in neuropathology, neurochemistry, response to L-dopa therapy and stereotactic surgery as well as prognosis have been identified in subtypes when patients with predominant postural instability and gait difficulty (PIGD)/Type B were differentiated from those with predominant symptoms of tremor and rigidity/Type A. Postural instability is resistant to the therapeutic effects of L-dopa, despite its continued efficacy on other Parkinson’s symptomatology, implicating the nondopaminergic mechanism of postural instability in Parkinson’s disease. Patients with significant postural instability and gait …

Management Of Common Musculoskeletal Problems: A Survey Of Ontario Primary Care Physicians, Richard H. Glazier, Dawn M. Dalby, Elizabeth M. Badley, Gillian A. Hawker, Mary J. Bell, Rachelle Buchbinder, Sydney C. Lineker

Kinesiology and Physical Education Faculty Publications

BACKGROUND: In Canada, primary care physicians manage most musculoskeletal problems. However, their training in this area is limited, and some aspects of management may be suboptimal. This study was conducted to examine primary care physicians' management of 3 common musculoskeletal problems, ascertain the determinants of management and compare management with that recommended by a current practice panel. METHODS: A stratified computer-generated random sample of 798 Ontario members of the College of Family Physicians of Canada received a self-administered questionnaire by mail. Respondents selected various items in the management of 3 hypothetical patients: a 77-year-old woman with a shoulder problem, a …

Energy Absorption During Running By Leg Muscles In A Cockroach, Robert J. Full, Darrell R. Stokes, Anna N. Ahn, Robert K. Josephson

All HMC Faculty Publications and Research

Biologists have traditionally focused on a muscle's ability to generate power. By determining muscle length, strain and activation pattern in the cockroach Blaberus discoidalis, we discovered leg extensor muscles that operate as active dampers that only absorb energy during running. Data from running animals were compared with measurements of force and power production of isolated muscles studied over a range of stimulus conditions and muscle length changes. We studied the trochanter-femoral extensor muscles 137 and 179, homologous leg muscles of the mesothoracic and metathoracic legs, respectively. Because each of these muscles is innervated by a single excitatory motor axon, …

Physiological Effects Of Varying Power Output In A Cycling Time Trial, Mark Alan Liedl

Human Movement Studies & Special Education Theses & Dissertations

During a bicycle time trial, varying power slightly to counter external conditions may result in improved performance [Swain, 1997], but it is not known if such power variations result in added physiological stress. Thus, the purpose of this study was to determine if variable power (VP) cycling produced greater physiological stress than constant power (CP) cycling of the same mean intensity. Eight trained male cyclists (age 28 ± 2 yr, mass 74.4 ± 2.3 kg, VO_2max 4.24 ± 0.13 L•min^-1, weekly training 277 ± 44 km) performed three 1 h ergometer trials. The first trial was performed …

The Effects Of Habitual Physical Activity On Number Of Colds And Incidence Of Cold Symptoms, Katie Lynn Maniatis

Masters Theses

The purpose of this investigation was to compare frequency of colds and symptoms of upper respiratory infection in college students who have different levels of habitual physical activity. Subjects were Eastern Illinois University students (N=535, aged 18-25). A survey was conducted which included questions inquiring about demographic information, physical activity habits, the number of colds contracted the month before the survey, and symptom number and severity. Data collection occurred between February 12th and March 1st, 1998. This particular time period was chosen for several reasons, including that student stress level should have been lower than at the beginning or end …

A Comparison Of Measures In Physical Fitness And Biological Maturity Between Female Gymnasts And Females Not Involved In Organized Sport, Cara Kokenes

Masters Theses

The purpose of this study was to investigate differences in physical fitness and biological development between two groups of twelve year old females. One group consisted of idividuals who had been involved in competitive sport for at least two years while the other group was not involved in organized sport. Two groups of 20 subjects were examined in terms of height, weight, flexibility, strength, body composition, maturation, eating attitudes, and cardiorespiratory endurance. The results indicated that the gymnasts were significantly (p<.05) shorter, lighter, stronger in regard to left hand grip strength, lower in percent body fat, less biologically mature, and had greater cardiorespiratory fitness than the non-gymnasts. No significant differences were observed in right hand grip strength or eating attitudes. It was concluded that maturation level as well as gymnastic training played a major role in influencing values obtained through measurements of physical fitness.

Alcohol, Hormones, And Postmenopausal Women, Matthew P. Longnecker, Marilyn Tseng

Kinesiology and Public Health

Many women take supplemental estrogens after menopause, a practice called hormone replacement therapy (HRT). Moderate alcohol consumption may increase estrogen levels in women receiving HRT, potentially affecting their risk for various adverse health effects. Two recent studies, however, provide no strong evidence for an effect of alcohol on hormones in postmenopausal women. The possible association between alcohol consumption and risk of cancer of the breast does not appear to be mediated by estrogens. Both estrogens and moderate alcohol consumption have been associated with a decreased risk for cardiovascular disease; however, alcohol’s beneficial effect on heart disease does not appear to …

Magnetic Resonance Imaging, Arthrography, And Ultrasound In Diagnosing Rotator Cuff Tears: An Evaluation Of Agreement, Andrea Solsona

College of Graduate Studies: Theses & Dissertations (1964–2006)

Eleven patients who had a clinical suspicion of a rotator cuff tear were referred for a magnetic resonance imaging exam, an arthrographic exam or both. Additionally, all patients received a diagnostic ultrasound exam. The results of the imaging studies were compared to surgical or clinical diagnosis. Arthrography had 100% positive predictive value (PPV), negative predictive value (NPV), accuracy, specificity, and sensitivity. Magnetic resonance imaging had 100% PPV, 60% NPV, 78% accuracy, 100% specificity, and 67% sensitivity. Ultrasound had 80% PPV, 50% NPV, 64% accuracy, 75% specificity, and 57% sensitivity. Based on these results, taking into consideration the national average costs …

The Effects Of A Goal Setting Intervention And Dispositional Optimism/Pessimism On Selected Golf Skills: A Qualitative Design, Matthew James Wilson

College of Graduate Studies: Theses & Dissertations (1964–2006)

The purpose of this study was to examine the effects of a goal setting intervention on selected golf skills over the course of a competitive golf season. A secondary purpose of this study was to investigate a comparison of optimism and pessimism in relationship to goal attainment. Subjects (n=7) were elite golfers from a university men's golf team. A two-month goal setting intervention was implemented consisting of the individual golfers selecting three golf skills from five separate categories (fairways in regulation, greens in regulation, total putts per round, up and downs conversion rate, and putts per green in regulation) to …

The Effects Of Aerobics And Walking On Social Physique Anxiety And Self-Esteem Of Female College Students, Jessica L. Lloyd

College of Graduate Studies: Theses & Dissertations (1964–2006)

The purpose of this investigation was to explore the effectiveness of walking and aerobics as a way of modifying body image apprehension and self-esteem of female college students. Participants from this study comprised 88 (25 African Americans and 63 Caucasians) students from a Southeastern university. The participants were administered the 9-item Social Physique Anxiety Scale (SPAS) (Martin, Rejeski, Leary, McAuley, & Bane, 1997) and the Rosenberg Self-Esteem Scale (RSES) (Rosenberg, 1979). Body composition, body weight, body height, and body mass index (BMI) were also evaluated. The participants performed in a 9-week walking or aerobics physical activity class. At the completion …

Sense Of Effort Associated With Exercise In The Chronic Fatigue Syndrome, Karen E. Wallman

Theses : Honours

Investigations into the mediators of effort sensation have indicated that central mechanisms related to corollary discharges may be responsible for an increased sense of effort during fatiguing isometric exercise. The role for central mediators for sense of effort have been objectively demonstrated through use of contralateral limb matching tasks. Subjects diagnosed with chronic fatigue syndrome (CFS) often report prevalent fatigue associated with a greater sense of effort when involved in exercise. This study employed a fatiguing contralateral limb-matching task in order to determine if CFS subjects (n == 6) experienced an altered sense of effort associated with the task when …

The Relationship Between Subtalar And Knee Joint Function As A Possible Mechanism For Running Injuries, Nikolaos Stergiou, Barry T. Bates

Journal Articles

The purposes of the study were: (1) to evaluate the effects of different surfaces on the relationship between subtalar and knee joint function, and (2) to examine/explore alternative approaches to the evaluation of these relationships. Five subjects ran under four different surface conditions of various hardness, while both rear and sagittal view kinematic data were collected (200 Hz). Critical parameters describing the knee angle and rearfoot motion were examined in conjunction with a curve analysis technique which incorporated slope differences and curve correlations. A repeated measure ANOVA design (surface × subject) was used along with single subject procedures. The results …

Windlass Taping Technique For Symptomatic Relief Of Plantar Fasciitis, Beth Anne Ernst

Rehabilitation Sciences Theses & Dissertations

This study investigated the biomechanical and symptomatic effects of a newly described taping technique to support the longitudinal arch in symptomatic plantar fasciitis patients. The subjects were 20 individuals all diagnosed by a physician with unilateral plantar fasciitis, ambulating full weight-bearing without an assistive device.

Measurements were taken pre and post-taping for calcaneal position, tibial position and navicular height, with the subjects serving as their own control. The subjects also reported pain level pre and post tape using a visual analog scale. The statistical analysis performed on the biomechanical data was the t-test, and Wilcoxon matched-pairs signed ranks test was …

Reliability Of The Modified-Modified Schober Method Of Measuring Lumbar Range Of Motion, Mira H. Mariano

Rehabilitation Sciences Theses & Dissertations

The purpose of this study was to determine the reliability of the Modified-modified Schober (MMS) method of measuring lumbar flexion and extension on subjects with low back pain. Thirty patients (19 females, 11 males) between the ages of 18 to 61 years (mean=40.0, SD=l 1.7) were measured by two physical therapists who each had six years of orthopedic experience.

Each subject was evaluated twice, in random order, by each tester using the MMS method. Trials 1 and 2 were used to calculate intratester reliability for each tester and intertester reliability was calculated between the two testers. Intraclass correlation coefficients (ICCs) …

Effect Of Resistance Training On Lipid Profile And Body Composition In Premenopausal Women, Bharathi Prabhakaran

Human Movement Studies & Special Education Theses & Dissertations

This study examined the effects of 14 weeks of resistance training on lipid levels and body fat percentage (BF%) in healthy, sedentary premenopausal women. Twenty four women (mean ± SD: age:27 ± 6.5 yrs, weight 66.2 ± 12.3 kg) participated in the study. The subjects were randomly placed in either a control (CON) group or in an exercise (EXER) group. The EXER group participated in a supervised 45-50 minute resistance training session (85% of 1-RM) for 14 weeks, 3 times per week on non-consecutive days. The CON group did not participate in any physical activity. The subjects were asked not …

Dietary Iron And Recurrence Of Colorectal Adenomas, Marilyn Tseng, Robert S. Sandler, E. Robert Greenberg, Jack S. Mandel, Robert W. Haile, John A. Baron

Kinesiology and Public Health

Previous research suggests that iron acts as a prooxidant to increase the risk of colorectal neoplasia. This study examined effects of dietary intake of iron on colorectal adenoma recurrence using data from an antioxidant clinical trial. All subjects were free of polyps at study entry but had at least one adenoma removed within the 3 months before enrollment. Follow-up colonoseopies were conducted after 1 and 4 years. Patients who developed one or more adenomatous polyps between years 1 and 4 were classified as cases; all others were controls. Dietary iron intake at baseline and at the end of the study …

Changes In Spinal Height Supine And Walking In Subjects With And Without Lower Back Pain, Dave Gregory

Rehabilitation Sciences Theses & Dissertations

Purpose: The purpose of this study was to develop and test a device that could be used in clinical situations to measure spinal height in subjects with lower back pain.

Introduction: Spinal height measurement provides information on the impact of spinal loading on the intervertebral disc. The stadiometer is presently the most accurate device for this purpose but users of the device must be trained to be measured. This excludes untrainable subjects such as those with lower back pain. For this study, a new ins1rument was developed combining aspects of the stadiometer and other devices to produce a simpler method …

Predictors Of Social Physique Anxiety In Elite Female Youth Athletes, Jeffrey J. Martin, Hermann J. Engels, John C. Wirth, Kari L. Smith

Kinesiology, Health and Sport Studies

The purpose of this study was to examine predictors of social physique anxiety (SPA). SPA, self-esteem, body-esteem, public body consciousness (PBC) and percent body fat (%BF) were assessed with elite female youth athletes (N = 68) competing in either figure skating, soccer or gymnastics. Stepwise multiple regression analyses, controlling for BF%, accounted for 59% of the variance in SPA. Self-esteem entered first, and BF%, followed by body-esteem and PBC. The psychological variables accounted for 57% of the variance with self-esteem contributing the most (R square change = 45%). Contrary to previous research, BF% did not significantly contribute to SPA. …

Effects Of Creatine Supplementation On Muscular Strength And Power Development In Well-Trained Football Players, Josef D. Mcquain

Theses, Dissertations and Capstones

The purpose of this study was to determine the effects of creatine supplementation on strength and power performance in well-trained football players. Twenty-one subjects were randomly assigned to three treatment groups: 1) creatine monohydrate, 2) creatine monohydrate+dextrose, or 3) placebo utilizing a double-blind design. Prior to assignment, subjects were matched according to lean body mass. After a five day loading dose, a maintenance dose was administered for 12 days. Test protocols included three anaerobic work bouts: l) two 30 s Wingate bike tests interspersed with five minutes recovery were used to ascertain relative and absolute power, 2) two 100 yard …

Competitive Orientations And Motives Of Adult Sport And Exercise Participants, Diane L. Gill, Lavon Williams, Deborah A. Dowd, Christina M. Beaudoin, Jeffrey J. Martin

Kinesiology, Health and Sport Studies

Participants in four different adult sport and exercise programs (running club, exercise classes, cardiac rehabilitation program, senior games) completed measures of competitive orientation and participation motivation. Our samples were older and more diverse than samples of previous research, and their competitive orientations and motives were similarly diverse. Multivariate analyses revealed gender and sample differences. Males were higher than females on competitiveness and win orientation, and runners were less win-oriented than other groups, but overall, all groups were similar to previous college-age samples in competitive orientation. Groups varied on specific motives, with females rating fitness, flexibility, affiliation, and appearance higher than …

A Model For A Policy On Hiv/Aids And Athletics, Laurie A. Bitting, Cynthia Trowbridge

Kinesiology Faculty Publications & Presentations - Archive

Human immunodeficiency virus (HIV)-infected athletes exist at the collegiate level and are engaging in competitive sports, as was revealed by a 1993 NCAA survey. Unfortunately, there is a void when the issue of policy for the HIVpositive athlete and his or her participation rights at the collegiate level is addressed. Given the controversial nature of opinion on HIV and the resultant acquired immunodeficiency syndrome (AIDS), it is recommended that a policy be in place for an HIV-infected athlete before it is needed. Ithaca College has recently developed such a policy, and it is offered here to other educational institutions as …

Micronutrients And The Risk Of Colorectal Adenomas, Marilyn Tseng, Sharon C. Murray, Lawrence L. Kupper, Robert S. Sandler

Kinesiology and Public Health

Recent studies suggest that micronutrients, especially folate, calcium, iron, and antioxidant vitamins, affect the risk of colorectal neoplasia. The objective of this case-control study was to examine the association between these micronutrients and the risk of colorectal adenomas. The study was based on 236 cases with adenomatous polyps or cancer and 409 controls, all colonoscopy patients at University of North Carolina Hospitals between July 1988 and March 1991. After colonoscopy, subjects were interviewed using a semi-quantitative food frequency questionnaire, and average daily nutrient intakes were calculated. Sex-specific odds ratios relative to the lowest quartile of intake for each micronutrient were …

Physiological Responses To Various Durations And Intensities Of Warmup, Susan J. Hanson

Student Work

Warmup has been a general practice for most athletes to engage in prior to a practice or competitive race. However, there has been little scientific evidence, specifically for the endurance athlete concerning the appropriate duration, intensity, or a combination of duration and intensity needed to enhance performance. Therefore, the purpose of this study was to determine how different combinations of durations and intensities of warmup affect heart rate (HR), lactic acid· (LA), minute ventilation (VE), respiratory exchange ratio (R) and rating of perceived exertion (RPE) during a 5 minute treadmill run at 80% VO2 max. Subjects included four male and …

The Relationship Of Foot Types To Pressure Distribution Patterns Of The Forefoot During Gait, Hui-Ji Fan

Rehabilitation Sciences Theses & Dissertations

Pressure distribution under the foot has been considered a useful indicator in the treatment of foot problems. The purpose of this study was to determine the relationship between foot types and pressure patterns under the forefoot. Fifty-four healthy subjects (19 males, 35 females, mean age=27 years, S0=4, range=21-39) participated in this study. A BTE pedobarograph was used to record pressure distribution under the foot during barefoot walking. Foot types were classified as neutral, pronated, and supinated. Pressure distribution under the forefoot was classified as medial, central, and lateral patterns. The medial pattern had the highest peak pressure under the first …

Faster Femoral Artery Blood Velocity Kinetics At The Onset Of Exercise Following Short-Term Training., J K Shoemaker, S M Phillips, H J Green, R L Hughson

Kinesiology Publications

OBJECTIVE: The hypothesis that the adaptation to endurance exercise training included a faster increase in blood flow at the onset of exercise was tested in 12 healthy young men who endurance-trained (ET) 2 h/day, for 10 days at 65% VO2 peak on a cycle ergometer, and in 11 non-training control (C) subjects.

METHODS: Blood flow was estimated from changes in femoral artery mean blood velocity (MBV) by pulsed Doppler. Beat-by-beat changes in cardiac output (CO) and mean arterial pressure (MAP) were obtained by impedance cardiography and a Finapres finger cuff, respectively. MBV, MAP and CO were measured at rest and …

The Effects Of Conditioning And Gender On Ratings Of Perceived Exertion During Physical Exercise, Dr. Roberta A. Pellant

All Graduate Theses, Dissertations, and Other Capstone Projects

The purpose of this investigation was to determine if gender played a factor in perception during physical exertion, and whether those perceptions were influenced by conditioning level. Sixteen male and sixteen female volunteer subjects, ranging in age from 21 to 35, constituted the sample for this study. The Bruce protocol for a Symptom­-Limited Graded Exercise test was the instrument utilized to evaluate heart rate during the maximal physical exercise program. A ventilatory analyzer measured each subject's maximal oxygen consumption. Borg's Rated Perceived Exertion Scale was employed for subjective evaluation of an individual's perception of effort. The t-test compared mean scores …