Have Courage to Challenge Your Core

We tried these tummy strengtheners at yoga tonight! This is the first one:

 Squeeze the yoga block between your legs in "boat pose." Lift the arms on the inhale and lower them on the exhale.

Here's another:

 Extend one leg and bend the other. Pass the yoga block under the bent knee to the opposite hand.

Switch legs (extend and bend opposites), then pass the yoga block under the bent leg to the starting side.

Repeat and work each side the same number of times like this:

Here's the third one:

Rest the yoga block on the shins. Pull the knees in, reach for the yoga block, and stretch the arms overhead while holding the yoga block. Squeeze knees back to chest and balance the yoga block on the shins while extending the legs and arms long.