Cardio Library: 14 Movements With Photos, Muscle Maps and Instructions
Every cardio exercise with real step-by-step photographs, the muscles it works shown on a body map, and ranked alternatives when you don't have the equipment.
Quadriceps Cardio 13
Straightening the knee. Full quadriceps guide →
Bicycling
Bicycling, Stationary
Jogging, Treadmill
Recumbent Bike
Running, Treadmill
Trail Running/Walking
Walking, Treadmill
Elliptical Trainer
Rope Jumping
Rowing, Stationary
Skating
Stairmaster
Showing 12 of 13. All quadriceps cardio →
Hamstrings Cardio 1
Bending the knee and extending the hip. Full hamstrings guide →
Frequently Asked Questions
How many cardio are in the Fitnit library?
14, 14 of them with step-by-step photographs. Every entry lists the muscles it works, the equipment it needs, and alternatives that train the same thing.
Which cardio does Fitnit count automatically?
AI rep counting currently covers push-ups, squats, dumbbell curls, crunches and pull-ups. Everything in this section can be logged manually in the app.
Is the Fitnit cardio exercise library free?
Yes. Every guide on this site is free to read, with no account needed. The Fitnit app is where the rep counting and form scoring live.
Track Your Cardio with AI
Fitnit uses proprietary body tracking technology to automatically count your cardio reps and analyze your form in real time. Get started free — Pro is just $8.99/month.