Originally Posted by David Meverden
I suspect that the lack of a really good way to measure useful abdominal strength hampers efforts to find the best/most appropriate ways to train the midsection.
See how hard a hit you can take to the mid-section. That's a good measure of abdominal strength. There's also the ability to do strength moves such as a standing roll-out, a dragon flag or other similar moves. I'd say those are good measures of abdominal strength.