10 Effective Yet Simple Exercises That Can Be Done Without Ever Getting Up

Technically a sit-up, this effective move works the abs through a larger range of motion and adds some functional fitness training to the challenge.

• 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 the arms overhead.
• Inhale to curl the 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 20 reps total.