Start seated on the ground, using fingertips by your sides for support. Lean back with legs stretched out and slightly elevated in front of the body. Tuck knees towards chest, moving the chest forward to meet them.
Bring the legs back to starting position and separate them outward to create a “V.” Then, bring them back together and repeat.
For added resistance incorporate Body-Solid tools Ankle Weights, reistance Tubes, or Ankle Straps.