A waist exercise targeting the abs, performed with body weight.

Sit on the captain's chair with your back against the backrest and your forearms resting on the arm pads.
Keep your upper body stable and your back straight.
Engage your abs and lift your legs up in front of you, keeping them straight.
Continue lifting until your legs are parallel to the ground or as high as you can comfortably go.
Pause for a moment at the top, then slowly lower your legs back down to the starting position.
Repeat for the desired number of repetitions.
Primary (target)
Secondary
Log your sets and the app does the rest — automatic PR detection, progression charts for every lift, and progressive overload that adjusts your next workout. Paired with AI nutrition coaching so your training and your plate pull in the same direction.
Planning your next heavy session? Estimate your max with the One Rep Max Calculator and build up to it with the Warm-up Calculator. More free tools →