The AI running coach that trains with your real workout data.
Give ai access to your training data to help it coach you better. Caden AI is integrated with your historical running workout history as well as your upcoming schedule and information about you. Train smarter with Caden
My 18 km long run felt sluggish in the final 4 km yesterday. Should I still run 5x1km threshold repeats tomorrow?
Your heart rate drifted into Zone 3 during those final kilometers (averaging 158 bpm at 5:12 /km pace), signaling accumulated muscular fatigue. Your rolling ACWR is 1.28.
Let's move tomorrow's threshold session to Thursday and run an easy 6 km recovery run in Zone 1 (under 135 bpm) instead. This keeps your training load in the sweet spot without sacrificing weekly adaptation.
How Caden Works
From connected GPS telemetry to individualized endurance coaching in three steps.
Connect Your Workouts
Connect Apple Health on iOS or sync activities via Strava. Caden imports your recorded runs, duration, pace, heart rate samples, and elevation. Your records are processed under enterprise terms where data is never sold or used to train public models.
Physiological Modeling
Rather than treating runs in isolation, Caden evaluates your rolling Acute:Chronic Workload Ratio (ACWR) and audits your 80/20 polarized distribution. This establishes your true fatigue level and injury risk boundaries before prescribing workouts.
Adaptive Coaching & Plans
Chat directly with Caden about workout execution, pacing, and recovery. Generate multi-week periodized race schedules that adapt dynamically when work travel, sickness, or extra fatigue forces you to miss a day.
Engineered for Serious Runners
Every feature is built on established exercise science rather than generic web prompts.
Conversational AI Running Coach
Chat naturally with an endurance coach that has immediate context on your past 60 days of workouts. Ask about cardiac drift, weekly mileage increases, or marathon pacing without manually pasting tables into general chatbots.
ACWR Fatigue & Injury Prevention
Overuse running injuries frequently correlate with sudden workload spikes. Caden calculates your Acute:Chronic Workload Ratio with every workout, keeping training strain between 0.8 and 1.3, and alerting you when acute load spikes above 1.5.
80/20 Polarized Training Discipline
Stephen Seiler's polarized training model demonstrates that athletes maximize aerobic capacity by spending 80% of volume at low intensity (Zone 1 & 2) and 20% at high intensity (Zone 4 & 5). Caden audits your heart rate distribution to prevent unproductive Zone 3 stagnation.
Personalized Adaptive Race Schedules
Generate periodized race training plans for 5K, 10K, Half Marathon, and Marathon goals. Plans enforce progressive overload safely (capping weekly increases at 10%), include race taper blocks, respect preferred training days, and integrate structured gym strength splits (Push, Pull, Legs, Full Body).
Why Caden is Different
How Caden compares to general-purpose AI and traditional running apps.
Why not just paste workouts into ChatGPT?
Many runners wonder how to give ChatGPT access to their running data. General chatbots do not connect to Apple Watch or GPS sensors. Pasting CSVs or raw workout numbers is cumbersome, exposes personal health records to public model training, and lacks continuous mathematical modeling of rolling fatigue.
Caden provides a purpose-built environment: your telemetry syncs automatically, is evaluated with published sports science formulas, and stays isolated under commercial developer terms where your data is never used to train foundational AI models.
How Caden compares to apps like Runna
Traditional training apps provide static calendar templates. When life intervenes—a missed Tuesday workout, poor sleep, or unexpected muscle tightness—static plans break down or force you to pile missed volume onto tired legs.
Caden is an interactive partner. It recalculates rolling load, allows you to ask why a workout felt difficult, and plans structured gym strength splits (Push, Pull, Legs) so heavy leg sessions are never scheduled immediately before key speedwork.
Realistic Questions You Can Ask Caden
Real prompts supported by Caden's workout memory and analytical engine.
“Why did my pace drop on yesterday's 14 km run even though my heart rate stayed high?”
Caden evaluates split paces against heart rate progression to identify aerobic decoupling, heat stress, or accumulated fatigue.
“I missed Tuesday's interval session due to travel. How should I adjust the rest of the week?”
Caden calculates rolling load and reschedules key quality work without overloading your weekend long run.
“Did I spend too much time in Zone 3 during my easy runs over the last 30 days?”
Caden computes your exact duration across zones to verify compliance with 80/20 polarized training.
“Based on my recent 5k time of 21:10, what is a realistic target pace for my half marathon?”
Caden cross-references personal bests against equivalent race curves and your acute weekly volume baseline.
Frequently Asked Questions
Direct, factual answers to common questions about Caden and AI sports coaching.
Does Caden connect to ChatGPT or require an OpenAI account?
How does Caden access my running and workout history?
How is Caden different from traditional running apps like Runna?
Can Caden generate personalized training schedules for specific race distances?
How does Caden help prevent running injuries?
Is my running and health data kept private?
What devices and platforms does Caden support?
Train with your real data.
Connect your training history and start working with an AI sports coach grounded in published exercise science.