| 摘要 |
A method for monitoring food intake for an individual and providing an indication when the food intake exceeds a predetermined allowable amount, comprising the steps of monitoring the individual over a predetermined period of time in order to establish an empirical relationship for the individual between a change in at least one physiological variable and a rate and/or amount of food intake. Upon starting each meal, the change in each of the relevant physiological variables is measured so as to determine from the empirical relationship an estimated rate and/or amount of food intake. This permits calculation of a maximum eating time to intake the predetermined allowable amount for the individual, upon expiry of which an indication is given to stop eating. A system operating in accordance with the invention includes a wrist watch having a Doppler ultrasound transducer for placing over the user's radial artery and producing an audible alarm when the individual has been eating for sufficient time to consume the predetermined allowable amount of food. The watch can, if desired, also include a self-programming facility for allowing determination of the empirical relationship for the individual. |
