For abdominal exercise it's important to work the opposing...
For abdominal exercise it's important to work the opposing muscle group -- in this case the back. My two-year-old son, Trey, likes it because it looks like I'm flying.
For abdominal exercise it's important to work the opposing muscle group -- in this case the back. My two-year-old son, Trey, likes it because it looks like I'm flying.