V-up progression

From easiest to hardest. Move to the next step when you can do the current one with good form.

1. Tuck Crunch · Beginner · reps
   To begin, lie down on the floor or an exercise mat with your back pressed against the floor. Your arms should be lying across your sides with the palms facing down.
2. V-up · Intermediate · reps
   Lying flat with arms overhead, the straight legs and the torso lift together so the hands reach toward the feet and the body balances on the buttocks in a V, then both lower with control without resting.