Interactive Vitality & Training Hub
Calibrate your metabolic energy demands, cardiovascular training zones, hydration volume, and interval workout timing with precision.
Mifflin-St Jeor TDEE & Macro Engine
Calculate your basal metabolic rate and configure daily protein, carbohydrate, and fat targets based on your physiological objectives.
Daily Macronutrient Targets
Daily Hydration & Electrolyte Planner
Dehydration of merely 2% body mass impairs muscular power and cognitive processing speed. Calibrate your fluid volume.
Estimated Electrolyte Requirements
Cardiovascular Heart Rate Zone Matrix
Uses the Karvonen Heart Rate Reserve (HRR) equation to establish accurate aerobic and threshold training intensity zones.
Light walking, active recovery, warm-up.
Peak mitochondrial biogenesis & lipid utilization.
Cardiovascular endurance & glycogen utilization.
Lactate threshold & high-intensity tolerance.
Maximal aerobic capacity & sprint power.
Interval & HIIT Audio Stopwatch
Built-in synthesizer beeps via Web Audio API. Perfect for Tabata 20/10, HIIT circuits, or resting timers between heavy lifting sets.