This workout includes some great exercises for your core and specifically lower abs!

Here's the workout:

Complete one round of the following exercises:

25-seconds: Leg Raises
5-seconds: Rest
25-seconds: V-Ups
5-seconds: Rest
25-seconds: Scissors
5-seconds: Rest
25-seconds: In-n-Outs
5-seconds: Rest
25-seconds: Plank Mountain Climbers
5-seconds: Rest
25-seconds: Leg Raises
5-seconds: Rest

Have fun!