Application of mathematical modeling in monitoring of body mass change

Wishnofsky-jevo pravilo, nastalo 1958. godine, predviđa linearan i kontinuiran gubitak tjelesne mase kada se osoba nađe u stanju negativne energetske ravnoteže s konstantom gubitka od 7700 kcal/kg. Današnje znanstvene spoznaje pokazuju nam kako je promjene tjelesne mase dinamički proces. Stoga su razvijeni dinamički modeli koji promjenu tjelesne mase promatraju preko koncepta energetske ravnoteže na koji je primijenjen prvi zakon termodinamike. Dinamički modeli, osim što se temelje na novim znanstvenim spoznajama, validirani su uz pomoć podataka iz studija koje su proučavale dugoročni učinak kalorijske restrikcije na promjenu tjelesne mase te daju točnija predviđanja. Iako postoje noviji modeli, Wishnofsky-jevo pravilo je i dalje u upotrebi vjerojatno zbog jednostavnosti izračuna predviđanja. Uporaba računalne tehnologije te izrada aplikacija temeljenih na dinamičkim modelima omogućila bi nam veću raširenost njihove primjene te zamjenu Wishnofsky-jevog pravila.The Wishnofsky's rule, created in 1958, predicts linear and continuous weight loss when a person is in a state of negative energy balance with a loss constant of 7700 kcal/kg. Today's scientific knowledge shows us that weight change is a dynamic process. Therefore, dynamic models have been developed to observe the change in body mass through the concept of energy balance, to which the first law of thermodynamics has been applied. Dynamic models, in addition to being based on new scientific knowledge, have been validated using data from studies that have examined the long-term effect of calorie restriction on weight change and make more accurate predictions. Although there are newer models, the Wishnofsky's rule is still in use probably because of the ease of calculating the prediction. Using computer technology and developing applications based on dynamic models would allow us to increase their widespread use and replace Wishnofsky's rule