Core strength

Russian Twists

Seated oblique rotation. A rep movement: a completed cycle counts.

Best camera angleFacing the camera
CounterEvery drive, alternating
Movement breaksSessions only

Where to put the phone

Seated, leaning back, facing the phone with the hands together in front of you.

Face the phone. This movement reads best when both sides of the body are visible at once.

What closes a rep

Rotate the hands to one side of the body, then across to the other. Each side counts.

What makes the counter wait

Keep the hands paired. If they separate the counter cannot follow the rotation.

Alternating movements are counted on every drive. A repeat on the same side is still counted, it is just not ranked, and the recap shows “alternate sides” as the advisory.

One tip

Feet down or lifted, both read. Lifted feet are shown in the recap as the harder variant.

After the set

Every set ends with the same recap: reps counted, time, pace, the longest run, pauses, whether the second half held up, and the camera angle the phone actually saw. Technique detail is measured for the recap and never used to refuse a rep. Why we count and do not grade →