Human waist circumference (WC) is strongly linked to morbidity and mortality associated with many of today's lifestyle diseases. Health organizations and lifestyle assessment programs are commonly using the WC as a predictor of health risks. Knowing one's WC is a primary step in assessing lifestyle diseases. One concern, however, is the accuracy with which WC measurements are taken. This is especially true if individuals are self-measuring their WC. This study attempted to determine the effectiveness of a computer-based tutorial (CBT) in teaching previously untrained individuals to properly measure the circumference of their waist. This is the first study to test the validity of a computer-based method of teaching WC measurement. To test the efficacy of the computer-based multimedia tutorial in teaching WC self-measurement, eighty-three subjects were recruited from the student population at the University of Colorado at Colorado Springs (UCCS). Subjects used the CBT to learn WC self-measurement techniques. Upon completion of the tutorial, each subject attempted to perform WC self-measurement. Subjects' measurements were duplicated by a traditionally trained and experienced tester. Validity of the subjects' measurements was determined by comparing their measurements to those of the experienced tester's. Bland-Altman and box-whisker comparisons revealed an average 1.57 cm bias in the subjects' WC measurements. Bland-Altman bias plots illustrated agreement between the subjects' and experienced tester's measurements. Pearson correlation (r=0.97) showed no significant (p<0.0001) difference between the two groups of measurements. The results of this experiment suggest that the tested CBT is efficacious in teaching waist circumference self-measurement to untrained subjects, as determined by comparison of their measurement results to a traditionally trained and experienced tester's performance. The tested CBT holds the potential to teach the general population ( i.e., nonprofessionals) to properly perform WC self-measurement. The tutorial could be used in the area of health assessment, biomedical education, and scholarly research. The CBT could also be used as a standardized way of instructing individuals in learning WC self-measurement and maintaining this skill.
Key Words: anthropometry, body composition, computer-based tutorial (CBT), measurement, obesity, waist circumference (WC).
|School:||Union Institute and University|
|School Location:||United States -- Ohio|
|Source:||DAI-A 68/12, Dissertation Abstracts International|
|Keywords:||Body composition, Computer-based tutorial, Self-measurement, Waist circumference|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be