Determination of the interoceptive feeling of satiety

The repeatability and validity of the satiety measurement were studied in healthy people (n = 35), some of which (n = 19) had been familiarized with the testing con- ditions (training). The coefficient of repeatability (CR) of subjective assessments of hunger, fullness of the stomach, desire to eat, and satiety, as well as the relation- ship (r) of these estimates with the amount of ad libitum test meal, were deter- mined using the double testing in trained and untrained participants. It is estab- lished that the feeling of fullness of the stomach and satiety is repeated to a higher degree (CR = 14 mm) than those of hunger and desire to eat (CR = 24 and 26 mm, respectively). Trained participants gave a more accurate assessment of the desire to eat and satiety than the untrained ones (CR = 33 vs. 19 and 16 vs. 12 mm, respec- tively). It was revealed that in trained participants the feeling of fullness of the stomach and satiety correlates with the amount of meal eaten (r = -0.54 and -0.55, respectively), whereas in untrained participants only the feeling of fullness of the stomach (r = -0.50). Thus, in the conditions of training, subjective data on the feel- ing of fullness of the stomach and satiety can be reliably measured.