Been told to layoff the rower until I strengthen up the middle. So the Nordic track and spinner will be seeing more use.
Get yourself a glute-ham developer to do situps on. Also a pair of those straps to place your upper arms into and do hanging knee raises up to your elbows. When that gets easy, just start doing knees to elbows hanging off of a pullup bar. Do planks with your toes on a 10lb plate and then walk on your hands and drag the plate around the garage. Do Pointer's turkish getup workout. All in all though the best "ab" workout is to get a heavy weight overhead, a lot.
