AbMat Sit-Ups (Diamond Sit-Ups)
- Lie on your back and open your legs into a diamond shape (aka butterfly legs) with the soles of your feet pressed together and knees out wide. Extend your arms overhead.
- Inhale to curl your torso up, and tap the floor in front of your feet to stretch your glutes a bit.
- Slowly lower back to the starting position.
- This counts as one rep.
- Do 30 sit-ups.