Patent ID: 7175595

Claim:
Method for adjusting nutrition in a person subjected to physical stress, comprising the steps of: determining performance capacity of the person by determining individual anaerobic threshold of the person and measuring lactate accumulation rate ΔA at and above the individual anaerobic threshold; determining a stress state of the person in relation to the measured individual anaerobic threshold and measured lactate accumulation rate ΔA; and regulating at least one of fat, protein and carbohydrate consumption of the person as a function of the determined stress state, individual anaerobic threshold and lactate accumulation rate, wherein the step of determining the lactate accumulation rate ΔA comprises the steps of: measuring time-dependent lactate concentration change beyond the individual anaerobic threshold, plotting a measurement curve of measured lactate concentration in relation to time, determining a first gradient in the measurement curve at a time t IAT that corresponds to the individual anaerobic threshold, determining at least one second gradient in the measurement curve at a time t x with t x >t IAT ; and subtracting the second gradient from the first gradient to determine a difference, which represents the lactate accumulation rate ΔA.