MOVE THREE: V-Sit
To perform a V-sit, position with your arms locked out, then lift your legs so they are level with your sternum. This movement takes intense abdominal strength, and can be worked up to with tuck-holds or L-sits. Gauge your improvement by tracking how long you can hold the position—5 seconds, 10 seconds, 15 seconds, etc. Perform 5 sets of max holds.