Lunge: Proper Form, Benefits & How Fit Play Counts It

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EumPlus October 4, 2026
Joint skeleton recognized by Fit Play in the Stand stage of the Lunge
Step 1 · Stand — joint positions Fit Play read from this sample photo using ML Kit pose detection
Joint skeleton recognized by Fit Play in the Lower stage of the Lunge
Step 2 · Lower — joint positions Fit Play read from this sample photo using ML Kit pose detection

A single-leg strength move. Step into a split stance and drop your back knee toward the floor, then return to standing. Great for balance and unilateral leg strength.

Category: Legs · Type: Reps · Default goal: 12 reps

Benefits 💪

- Strengthens each leg independently
- Challenges balance and coordination
- Opens the hip flexors

How to do it ✅

1) Stand tall, then step one foot forward into a split stance.
2) Lower straight down until the back knee nears the floor.
3) Keep the front knee stacked over the ankle.
4) Push back up to standing and repeat.

How Fit Play counts the Lunge 📱

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 "Stand" sample photo: knee about 173°, hip about 149°, elbow about 122°.
Joint angles read from the "Lower" sample photo: knee about 104°, hip about 170°, elbow about 122°.
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 - 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 Lunge?

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 12 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 Lunge?

No. It is a bodyweight exercise, so a mat is all you need to do it at home.