Most instructione suggest for you to do a pelvic tuck, and quit if that position breaks. I read on another site that dancers get back problems from overemphasizing this position. So, I 'm not too sure about the safety of this exercise even with the recommended form. It is a great exercise, but if you are injured, forget it. I used to do weighted decline situps, and found that after putting fifty pounds on my chest significant stress on my spine occured. I felt the same thing when using the wheel sometimes. The reps weren't hard, just didn't feel right. I stick to doing situps with less than 45 pounds, and do body hollows. I might revisit the wheel, though.
When I work my abs, I usually do several exercises to add up to a total of 100 repetitions. However, doing just 10 full reps of these makes my abs feel like they were literally ripped apart. But really, after a few weeks you'll notice that your stomach is leaner. I fully endorse this product, and it only costs $15
Jezuz H. Keerist! That guy is hard core. And I have an idea of who's been training him...
