RunFormCoach goes beyond basic pace and heart rate metrics. It is an all-in-one physiological and biomechanical running coach designed to analyze how efficiently your body utilizes energy in real-time. Understand your limits, prevent injuries, and unlock your peak performance with data-driven coaching. [Core Feature 1: Real-Time Efficiency (EI) & Economy Score (RES)] • EI (m/bpm) quantifies the distance you cover per single heartbeat, while RES (%) scores your real-time running economy against expected efficiency for your current pace. • The algorithm dynamically adjusts for hill grades (Minetti GAP) and wind speed, providing a highly objective measure of your running economy regardless of environmental conditions. [Core Feature 2: Smart Aerobic Decoupling V2.0] • Detect cardiovascular drift during long runs and marathon training. • Auto Smart Stabilization (EMA): Automatically detects when your heart rate and pace reach a true steady-state on flat terrain (±1.5% grade), filtering out brief GPS noise and auto-retrying if you stop at traffic lights. • Once your personalized Baseline is locked, a stepped Decoupling Alert is triggered if your efficiency drops by 5% or more due to fatigue or dehydration (Vibration alerts can be toggled ON/OFF in settings). [Core Feature 3: Scientific Smart Energy Gel Alert] • Never hit "the wall" (bonking) again. Since energy gels take 15–20 minutes to absorb into your bloodstream, waiting until you feel exhausted is too late. • Triple-Trigger Algorithm: Tracks your real-time carbohydrate (glycogen) burn rate across HR zones and combines it with early decoupling detection (-3.0% drop). • Alerts you at the exact physiological moment your body needs fuel ("EAT GEL #1, #2...") while enforcing a 25-minute cooldown to prevent stomach (GI) distress. [Additional Features] • Target Step (TS) Coaching & Step Match Rate: Calculates your ideal biomechanical step length based on your height, pace, and slope. Vibration alerts guide your cadence/step in real-time. (Tip: A Step Match Rate above 90% in your post-run summary indicates excellent form consistency!) • Fractional Zone 2 Tracker: Displays your precise decimal HR zone (e.g., 2.5 for mid-Zone 2, 2.8 for approaching Zone 3) with color-synced gauges, effective Z2 time, and customizable Z3 penalty timers. • Multi-Layout & Auto-Scroll Display: Supports 1-Line, 2-Line, and Full Screen (Ultimate) layouts with AMOLED burn-in protection. Cycles through Cadence, Timer, Distance, Avg Pace, Time, and Fat Burned (g) every 4 seconds. [Quick Setup & Customization Tips] • To enable Aerobic Decoupling (AE): Open Settings, find "[Efficiency] Aerobic Decoupling Baseline", and select "Auto (Smart Stabilization)" or a fixed time window. • For runners with high HR variability (or POTS): You can lower "[Zone2] Z3 Penalty Ratio" to 1x, increase "Hill HR Margin", or switch the Main Coaching Mode to "Step (TS) Coach" for pure biomechanical feedback without HR penalties.

Due to recent major feature updates, the configuration structure has been updated. If your settings revert to previous values or fail to save in the Garmin Connect IQ app, please completely uninstall and reinstall the app. Reinstalling will clear the previous cache and allow all new settings to save properly.