Mountain Climber: Proper Form, Benefits & How Fit Play Counts It
A dynamic plank drill. Hold a strong plank and drive one knee toward your chest, then switch. Each knee drive and return counts as a rep.
Category: Full Body · Type: Reps · Default goal: 20 reps
Benefits 💪
- Fires up the core and shoulders
- Adds a cardio burst
- Improves hip drive and coordination
How to do it ✅
1) Start in a plank with hands under your shoulders.
2) Drive one knee toward your chest.
3) Return it and drive the other knee in.
4) Keep your hips low and back flat throughout.
How Fit Play counts the Mountain Climber 📱
Fit Play tracks the position and angles of joints such as your shoulders, hips, and knees in real time. One rep is counted each time you complete a full cycle from the start position to the end position shown above and back again, and it is announced by voice and a beep. If the movement is not completed, the count does not go up.
Joint angles read from the "Plank" sample photo: knee about 169°, hip about 168°, elbow about 172°.
Joint angles read from the "Knee drive" sample photo: knee about 176°, hip about 156°, elbow about 169°.
These come from a single photo, so they vary with body proportions and camera angle.
Recognition is most stable when the phone stands upright 2–3 meters away and your whole body, head to toe, is in the frame.
Related guides 🔗
Fit Play Exercise Guide - All 10 Bodyweight Exercises at a Glance
Browse all 10 bodyweight exercises by body area, each with the skeleton recognized by the app.
Fit Play - Auto Counter & Log
A home workout app that recognizes your movement with the camera and counts reps and hold time automatically. Run through 10 bodyweight exercises and routines — squats, push-ups, planks, and more — completely hands-free.
Frequently Asked Questions (FAQ)
How does Fit Play count the Mountain Climber?
It tracks the position and angles of your joints with the camera and counts one rep for each full cycle from the start position to the end position and back. Reps are read aloud.
How many reps should I start with?
The default goal in Fit Play is 20 reps. You can adjust it to your level, so start with what you can do with good form and build up gradually.
Do I need equipment for the Mountain Climber?
No. It is a bodyweight exercise, so a mat is all you need to do it at home.