← Clive Thompson
🏃 CrossTrainer Run
📊 Workout Tracker
🚀 Space Defender
🎮 Game
📊 Stats
⚙️ Settings
0
✅ Dodged
0
💥 Hit
0
🏃 Strokes
0
🔥 Calories
🏃 CrossTrainer Run
Steer with your head · Speed with your arms
Dodge obstacles · Never stop!
📱 Hold phone upright in portrait mode
front camera facing you
Tap Enable Camera
to steer with your head
⏳ Loading body detector…
📷 Enable Camera
🎯 Calibrate Steering
📱 Arm speed: tap to enable accelerometer
📱 Enable Arm Sensor
▶ Start Race
Keyboard: ← → steer · Space = arm stroke
Camera: your head steers · Phone accel = arm speed
🏁 Session Complete
▶ Race Again
📷 Camera
📱 Arm
⏹ Stop
◄
►
Arm
0 spm
Accel
–
Speed
0%
📊 Exercise History
⚙️ Settings
Your weight (kg)
Used for calorie estimation
Head sensitivity:
5
Arm speed sensitivity:
2x
Higher = car moves faster for the same arm effort. Default 2x. Stored as your default.
Min arm strokes/min for movement
🎯 Head steering calibration wizard (3 steps)
🔄 Reset calibration (revert to sensitivity slider)
↔️ Invert head direction (if left/right is backwards)
📱 Enable phone accelerometer
🗑 Clear all history
◄ LEFT
RIGHT ►
✓ Confirm this position
✕ Cancel