Fitness Hub » Health Metrics Guide

Health Metrics Guide

Understand every health metric your Apple Watch tracks. From resting heart rate to VO2 max, learn what the numbers mean and how to improve them.

Understanding Your Active Calories Understanding Your Active Energy Burned Understanding Your Aerobic Efficiency Understanding Your Apple Fitness Score Understanding Your Atrial Fibrillation History Understanding Your Baseline Shift Detection Understanding Your Blood Oxygen (SpO2) Understanding Your Body Fat Percentage Understanding Your Body Mass Index (BMI) Understanding Your Calories Per Step Understanding Your Cardio Age Understanding Your Cardio Fitness Level Understanding Your Cycling Cadence Understanding Your Cycling Speed Understanding Your Daily Calorie Balance Understanding Your Double Support Time Understanding Your ECG (Electrocardiogram) Understanding Your Elevation Gained Understanding Your Environmental Sound Levels Understanding Your Exercise Minutes Understanding Your Flights Climbed Understanding Your Functional Capacity Understanding Your Handwashing Duration Understanding Your Heart Rate Recovery Understanding Your Heart Rate Variability (HRV) Understanding Your Heart Rate Variability Trend Analysis Understanding Your Heart Rate Zone Distribution Understanding Your Lean Body Mass Understanding Your Maximum Heart Rate Understanding Your Menstrual Cycle Tracking Understanding Your Mindful Minutes Understanding Your Movement Balance Understanding Your Movement Intensity Understanding Your Overnight Health Metrics Understanding Your Overreaching Indicator Understanding Your Plateau Detection Score Understanding Your Recovery Index Understanding Your Recovery Score Trend Understanding Your Recovery Status Understanding Your Respiratory Rate Understanding Your Resting Energy (BMR) Understanding Your Resting Heart Rate Understanding Your Resting Heart Rate Trend Understanding Your Running Economy Understanding Your Running Ground Contact Time Understanding Your Running Power Understanding Your Running Stride Length Understanding Your Running Vertical Oscillation Understanding Your Skin Temperature Variation Understanding Your Sleep Duration & Stages Understanding Your Sleep Efficiency Understanding Your Sleep Recovery Trend Understanding Your Standing Hours Understanding Your Step Count Understanding Your Swimming Pace Understanding Your Swimming Stroke Count Understanding Your Time in Daylight Understanding Your Total Workout Duration Understanding Your Training Load Understanding Your Training Load Trend Understanding Your Training Readiness Understanding Your Training Readiness Trend Understanding Your Training Stress Score Understanding Your Trend Volatility Index Understanding Your VO2 Max Understanding Your Waist Circumference Understanding Your Walking + Running Distance Understanding Your Walking Asymmetry Understanding Your Walking Average Heart Rate Understanding Your Walking Speed Understanding Your Walking Step Length Understanding Your Water Intake Understanding Your Weekly Exercise Summary Understanding Your Workout Consistency Understanding Your Workout Intensity Score Understanding Your Wrist Temperature

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