Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 60 for “"DEXA"”.
-
Estimating Body Mass through Bone Mineral Density Studies Using Dexa (Dual-Energy X-Ray Absorptiometry)
… data collected from dual x-ray absorptiometry (DEXA) scans of 107 collegiate football athletes. Athletes are a good fit for this study because they have achieved or almost achieved their peak bone mass by this age, and the weight fluctuations that occur throughout an individual’s lifetime have …
-
Are Bioelectrical Impedance and Skinfolds Considered Valid Measures for Tracking Body Composition Following Resistance Training when DEXA is the Criterion Measure?
… could track changes in body composition like DEXA. Fifty male volunteers participated in a 12-week high-intensity resistance-training program. Body composition was assessed using DEXA, skinfolds (SF), and BIA. Results indicate when DEXA was used as the criterion measure; BIA and SF may not be …
-
A Validation of a Handheld Ultrasound Device to Assess Body Composition in College-Aged Adults
… compare it to Dual Energy X-Ray Absorptiometry (DEXA) and Air Displacement Plethysmography (ADP) in estimating Percent Body Fat (%BF), Fat Free Mass (FFM), and Fat Mass (FM) in college-aged students. METHODS: Eighty-four participants volunteered for this study. All participants were instructed to …
-
Use Of Dual Energy X-Ray Absorptiometry Measurements To Evaluate Total Body Volume When Compared To Air Displacement Plethysmography For Evaluating Body Composition In A Four Compartment Model
… the use of dual energy x-ray absorptiometry (DEXA) based formulas to evaluate body volume (BV). The second purpose was to examine the validity of using predicted body volume measurements in four-compartment body composition models. </p> <p>Methods: Subjects were tested on three devices …
-
Using quantitative ultrasound for epidemiological research : associations with risk factors for low bone mineral density in South African premenopausal women
… correlated with dual X-ray absorptiometry (DEXA) measurement of bone mineral density (BMD) at the hip and spine, quantitative ultrasound has shown to be a reliable predictor of osteoporotic fracture. This study aims to evaluate the use of QUS in epidemiological studies in South African …
-
Investigate the nutritional status, including body composition, of oncology patients attending an outpatient clinic at Groote Schuur hospital: a cross-sectional study
… namely dual energy X-ray absorptiometry (DEXA) have highlighted the common phenotypic component of reduced muscle mass in malnutrition, cancer cachexia and sarcopenia, with a plethora of reference populations used and cutoff points determined for different representations of muscle mass. …
-
An Evaluation of the Limitations of the Technique of Dual Energy Absorptiometry in the Measurement of Bone Disease.
… (DPA) and currently Dual X-ray Absorptiometry (DEXA). This study examines the results from patients scanned on both Novo Lab 22a (DPA) and Hologic QDR 1000 (DEXA) machines used at this hospital and gives a high correlation coefficient (r = 0.96, p=<0.001).A comparison was made of previous …
-
Measuring Nutritional Status, Hydration and Body Composition Changes in Acute Stroke
… the reference method Dual X-ray absorptiometry (DEXA). Methodology: To understand the prognosis of malnutrition on post CVD outcomes I carried out a systematic review and meta-analysis examining the association between selected markers of malnutrition on outcomes. The systematic review is …
-
Effect of Severe Burn Injury on Body Composition and Muscle Metabolism in Pediatric Patients
… who underwent dual-energy x-ray absorptiometry (DEXA) scans from 2000 to 2016 and 268 patients who underwent metabolic studies from 1999 to 2008. All patients were treated and studied at Shriners Hospitals for Children, Galveston. Tissue remodeling was assessed using two DEXA scans per patient …
-
Quantification of bone using a 3.0 tesla clinical magnetic resonance scanner
… from dual-energy X-ray absorptiometry (DEXA) and peripheral quantitative computed tomography (pQCT).MR acquisition protocols have been successfully optimised for each type of bone region and in-house software has also been created to process the acquired data and quantify various types …
-
The effect of long term training on the bone mineral density and muscle strength of perimenopausal athletes
… Total Body BMD and body composition measured by DEXA (Hologic QDR 2000) and isometric strength of dominant arm flexors and leg extensors by a strain tensiometer connected to a strength chair. Differences between groups were determined by ANOVA followed by Scheffe Test and correlations by Pearson …
-
Digestible methionine + cysteine:digestible lysine ratio in diets for broilers submitted to inflammatory challenge
… spleen, and dual-energy x-ray absorptiometry (DEXA) estimated fat mass (%) and lean mass (%). The differences were considered significant at an alpha level of 0.05. A linear regression model was used to evaluate the effects of the dig Met + Cys:dig Lys ratio on the evaluated parameters. There …
-
Self-reported Exercise and Risk of Osteoporosis in Prostate Cancer Patients Receiving Androgen Deprivation Therapy
… measured by dual-energy x-ray absorptiometry (DEXA) and 25 hydroxy vitamin D levels in prostate cancer patients receiving ADT.</p> <p>A convenience sample of 96 men with prostate cancer treated with ADT for a minimum of nine months or longer and up to the time of inclusion in the study …
-
Evaluating the clinical and physiological effects of long term ultraviolet B radiation on guinea pigs (Cavia porcellus) and rabbits (Oryctolagus cuniculus)
… density. Dual energy x-ray absorptiometry (DEXA) scans were performed at the conclusion of the study. At the end of the study the animals were euthanized and necropsied. Mean ± SD serum 25-OHD3 concentrations differed significantly in both the guinea pigs (p < 0.0001) and rabbits (p= 0.003) …
-
Examining the Effects of Deer Antler Velvet Supplementation on Muscular Strength, Performance, and Markers of Delayed Onset Muscle Soreness.
… volunteered.</p> <p><strong>Measures:</strong> DEXA, 1-RM, a power test, and a 70% performance trial were measured. Creatine kinase and self-reported soreness levels were measured following an eccentric trial.</p> <p><strong>Results:</strong> No pre-experimental significant differences existed …
-
The Association Between Changes in Body Fat, Body Weight and Serum C-Reactive Protein: A Prospective Study
… 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 changes in CRP …
-
The Effect of Phytonutrient Supplementation on Pig Growth
… measured by dual x-ray absorptiometry (DEXA) was obtained on days -1, 14, and 28. Pigs increased (P<0.0001) in body weight, irrespective of treatment (P≤0.0535). Control pigs had greater average daily gain (ADG) when compared with other diets (P<0.001). Treatment 3 had the highest …
-
High-quality dense stereo vision for whole body imaging and obesity assessment
… stereo and dual-energy X-ray absorptiometry (DEXA) was found to be improved over the previous active stereo system, and the limits of agreement with 95% confidence were reduced by half. Our achieved %BF estimation agreement is among the lowest ones of other comparative studies with …
Page 1 of 3