planking 3:00 [3]
So this way is definitely harder -- straight arms and feet up on a chair. Three minutes was plenty, don't think there was much more in the tank, though maybe if there was someone providing entertainment....
The good thing is this has got me back doing some of my shoulder exercises. The shoulders have actually been really good, no problems at all on the golf course or when falling down in the woods. Worth a little effort to try and keep them that way.