Human FlagsYou don’t always need weights to have a great and challenging workout. Here’s a not so easy abdominal exercise that works primarily the obliques. Similar to doing side bends.
Have the upper body and hand strength to hold and brace yourself up.
Have the abdominal strength to raise your lower body.
And to make it a little tougher… Hold your legs up tuck your knees into your chest then straighten back out and then lower the legs back down.
Why the term flags? Because you look like a human flag when you hoist your body up like that.