10 minutes of core work using a small stability ball.
Flow through seated, lying flat and curled up in flexion to target the abdominals in all different directions and points of resistance to strengthen and carve out the transverse and rectus abdominals, as well as the obliques.
10 minutes of core work using nothing but bodyweight. This is a great workout to do if you are short on time, or to add in with any other workout to give your core that extra bit of attention. Try doing this routine 3 times per week for an entire month, and just wait to see some incredible changes.
Take just 10 minutes to effectively sculpt and strengthen the core muscles using nothing but bodyweight.
This express workout strengthens and carves out the entire midsection with no props at all. Exercises move from the back, seated side, and plank to challenge the muscles in different directions and with different focuses to get great results.