Abstract: A pocket PC/desktop computer/PDA weight-training system designed to instantly calculate the domains of strength, power, endurance, work, aerobics, and body fat percentage. The system calculates the difference and percentage of change of each domain from weight-training session to session, reflecting a complete evaluation of overload. The system calculates the percentages of the user's 1-RM. When a weightlifting scheme grows ineffective, the user can choose another weight scheme related to their 1-RM, or they can change the exercises using a menu of complete exercises. The system also calculates the total rest days and days between trained body parts to evaluate recuperation cycles. The nutrition component calculates 47 nutrients, as the user marks servings of consumed foods. The user sets consumption goals, and the system reflects the difference of the goal and what was consumed.