The validation and correlation to various approaches to measuring eating rate
Methodological differences may be responsible for variable results from eating rate (ER) studies. It is unknown whether self-reported, lab-measured, and free-living ER's align. This study was the first to explore relationships among self-reported, laboratory-measured and free-living ER's. We investigated this relationship in 60 randomly selected male and female college students who were stratified by self-reported eating rate (SRER) (Slow, Medium, Fast) from 1110 on-line survey respondents. Test day; subjects ate a prescribed breakfast (∼400kcal) at home, recording meal duration (MD); 4h later they individually ate an ad libitum laboratory pasta lunch at their own (natural) pace; remainder of the day they recorded free-living intake and MD. In all ER categories at all meals, men ate faster than women (Men=80.6±30.7kcals/min: Women=52.0±21.6kcals/min). Analysis of variance of lab ER aligned with three self-reported ER categories as expected (Fast=83.9±5.5, Medium=63.1±5.2, Slow=53.0±5.4 kcals/min). A difference in lab measured ER by SRER F= (2, 58) = 7.677, post hoc Tukey analysis found fast differed from medium and slow. The three free-living meal ER's did not align with self-report categories. Findings suggest various methods of measuring ER may yield differing results, at least in this population, but results support the use of SRER as a valid measure.^
Psychology, Behavioral|Health Sciences, Nutrition|Psychology, Psychometrics
Amanda J Petty,
"The validation and correlation to various approaches to measuring eating rate"
Dissertations and Master's Theses (Campus Access).