How to do the Frog Sit-Ups

Steps

1. Lie with your back flat on the floor (or exercise mat) and your legs extended in front of you.
2. Now bend at the knees and place your outer thighs by the floor (or mat) as you make the soles of your feet touch each other.
3. Now try pushing both soles and bringing them up as near you as possible while you keep the outer thighs on the floor (or at least almost touching it). Tip: In this position your legs should create a diamond shape.
4. Now, cross your arms in front of you by touching the opposite shoulders. This will be your starting position.
5. As you exhale flatten your lower back to the floor while curling the torso upwards. Tip: This will be like performing the first 1/4 movement of a sit up. Hold at the top position for a second.
6. As you inhale, slowly lower back to the starting position.
7. Repeat for the recommended amount of repetitions.

Tracking it in OneRep

Add the frog sit-ups to a routine and your previous weight and reps sit beside every set, so the decision to add load is made by what is already on the screen rather than by memory. Exercise history and volume trends are one tap away, and logging works offline for the gyms where signal does not reach.

Because OneRep tracks food on the same timeline, a stall on this lift can be read against what you were actually eating that month — which is the difference between a programming problem and an eating one. More on that in tracking progressive overload without a spreadsheet.

Where the instructions come from

The steps above come from free-exercise-db, a public-domain exercise dataset. They are general guidance, not coaching for your body: if a movement hurts, stop and get someone qualified to look at it.