Digital Commons Network^™

A Comparative Study Of The Oxygen Uptake Between Nonmotorized And Motorized Treadmills, Michael S. Wood

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to determine the effects of nonmotorized treadmill walking and motorized treadmill walking on VO₂ results, measured in ml•kg^-1•min^-1, of males and females, ages 20-30 at Utah State University, Logan, Utah, USA. The participants were required to walk at a pace of 3 miles per hour and 13% grade for a total exercise time of 9 minutes. The exercise time was broken up with 3-minute recovery periods. Oxygen uptake was measured continuously using a metabolic measurement cart. The data obtained from the metabolic cart were correlated for each treadmill to …

The Effect Of A Nutrition And Fitness Program On The Dietary Habits, Fitness Level, And Health Status Of Ute Indian Youth, Alison K. Lemon

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Lifestyle changes from traditional diet and activities to modem diets high in fat and sugar, and sedentary habits have increased inherited health risk for diabetes and obesity among Native American youth. Nutrition education and physical activity programs have been recommended to help reduce health-risk factors. This study evaluated a summer nutrition education and fitness program for effectiveness in improving the dietary habits, nutrition knowledge, fitness level, and health status of American Indian children ages 9-14 living on or near the Uintah-Ouray Reservation in Uintah and Duchesne Counties of Eastern Utah.

A 6-week nutrition and fitness program was conducted through the …

A Study Of The Effects Of Body Image Education On Body Image In Adults Aged 60 And Older, Amy Peterson Hirtle

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Body image has been addressed through weight loss, but little research has been done that addresses accepting one's body. Even less research has been done on the body image concerns of older adults. Adults over age 60 who live in Arizona and spend their summers in Logan, Utah, participated in a body image education at Utah State University. The Body Esteem Scale and the Inventory of Positive Psychological Attitudes were used to measure the effect of the course on the participants. Older adults on average scored as high or higher than did younger older adults on both measurements.

Body image …

Managed Care, Medicaid & The Elderly, An Overview Of Five State Case Studies, Robert L. Mollica, Trish Riley, Ltc Resource Center, University Of Minnesota

All U.S. Government Documents (Utah Regional Depository)

This publication contains a series of five state case studies of Medicaid managed care programs enrolling elderly care programs enrolling elderly Medicaid recipients. The case studies were prepared by University of Minnesota National Long Term Care Resource Center's two partners: the National Academy for State Health Policy (NASHP) in Portland, Maine and the Institute for Health Services Research, School of Public Health at the University of Minnesota in Minneapolis, Minnesota. These case studies have been conducted under the leadership of Trish Riley and Robert Mollica at NASHP.

The project was undertaken to examine the experience of elders in managed care, …

Validation Of Energy Dispersive X-Ray Spectrometry As A Method To Standardize Backscattered Electron Images Of Bone, E. G. Vajda, R. D. Bloebaum, J. G. Skedros

Cells and Materials

The use of backscattered electron (BSE) imaging as a tool for the qualitative measurement of mineral content in bone has been well documented. The challenge still remains to develop BSE imaging as a tool for quantitative mineral content analysis in bone. The limiting factor has been the ability to standardize the BSE signal within and between laboratories. Energy dispersive x-ray spectrometry (EDX) has been proposed as a method to standardize the BSE operating environment. The goal of this study is to investigate the relationship between EDX-determined wt.% Ca measurements and BSE graylevels. A comparison with traditional ash content measurements will …

Time Course Of Recruitment, Pit Formation And Apoptosis Of Osteoclast Populations On Dentin In Vitro, Jihyun Kang, Rigoberto Cornejo, Kevin J. Hirokawa, Susan M. Digiorgio, Darlene F. Howard, Susan F. Silverton

Cells and Materials

The resorptive capacity of osteoclasts in vitro has been used as an indicator of bone resorption. However, the kinetics of osteoclast development and senescence is not well understood. It has been noted that mononuclear precursors migrate to calcified substrate and after multi-nucleation become competent bone resorbing cells. Osteoclasts, once finished a wave of resorption, become senescent. In order to determine the survival characteristics of osteoclast populations involved in calcified tissue destruction, we have investigated the time course of the recruitment to dentin and apoptosis of osteoclasts. We have established the linkage between these measurements and the time course of the …

In Vivo Early Plaque Colonization On Smooth Titanium Surface, A. Carrassi, A. Sardella, L. Rimondini

Cells and Materials

Plaque development on pure titanium in a 24-hour period is described in an in vivo human model. Stents with titanium and root cementum specimens were applied to volunteers, who suspended oral hygiene procedures for 24 hours. The specimens were removed at 2, 4 and 24 hours and studied with a scanning electron microscope. A global area of 240 µm x 300 µm, composed of the sum of twelve 20 µm x 25 µm fields randomly selected, was examined for each specimen. The presence of cocci, short rods, long rods and bacterial aggregation, and bacteria density was recorded for each field. …

Biofilm Mediated Calculus Formation In The Urinary Tract, Robert J. C. Mclean, David J. Stickler, J. Curtis Nickel

Cells and Materials

Mineralization and subsequent calculus formation is a common complication of biofilm infections. In the urinary tract, these infected calculi often arise from infections by urease-producing bacteria. Ammonia, liberated by bacterial urease activity, increases urine pH, resulting in the precipitation of Ca and Mg as carbonateapatite {Ca₁₀(PO₄,CO₃)₆(OH,CO₃)₂} and struvite (NH₄MgP0₄·6H₂O). These minerals become entrapped in the organic matrix which surrounds the infecting organisms and ultimately grow into mature calculi. When the causative organisms grow on urinary catheters and stents, the resulting mineralization can …

Perturbations Of Periosteel Bone During Healing: Effect Of Non-Weight Bearing, Helen E. Gruber, Mary E. Kirchen, John R. Sweeney, William E. Anderson, G. June Marshall

Cells and Materials

Weight bearing (WB) is an important factor influencing bone remodelling. The present study evaluates the effects of weight bearing and non-weight bearing (S) (achieved by tail suspension and hindlimb elevation) on the healing of a fibular osteotomy in adult male rats. After 9, 18 or 36 days under WB or S conditions, periosteum near the callus formed at the osteotomy site was compared to periosteum of the contralateral fibula (which did not receive an osteotomy) or to periosteum of fibula of control animals which did not receive an osteotomy. Data show that periosteal bone healing is sensitive to alterations in …

Physical And Biological Evaluation Of Hydroxylapatite Films Formed On Ti6a14v Substrates By Excimer Laser Ablation, Tatjana Dostálová, Miroslav Jelínek, Lucie Himmlová, Vlasta Pesáková, Milan Adam

Cells and Materials

Thin films of hydroxylapatite, about 500 nm, were formed on Ti6Al4V by excimer laser ablation. Ten different deposition conditions were used such as deposition atmosphere (vacuum, pure water vapor, mixture of Ar and water vapor), substrate temperature, target-substrate distance and energy density. Mechanical and physical analyses were carried out by Rutherford backscattering and particle induced X-ray emission; crystallinity of films was determined by X-ray diffraction, surface topography by scanning electron microscopy and adhesion by a scratch test. Biological evaluation of samples was also performed. The fibroblast proliferation test was used, morphological evaluation of macrophages was carried out, and the activity …