I've been struggling with this exercise for weeks now, and I've given up. I can do everything else (with a little effort, and not without some resulting soreness) in all of the exercise classes I take, but side plank is impossible. It's not even a matter of not being able to keep up, or needing to take a rest. I. Can't. Do. Them. At. All. I was frustrated and discouraged, until it finally dawned on me that maybe it's because of my enlarged kidneys. My kidneys push out on my waist on the side, so maybe that's why my obliques (?) are so much weaker. And it makes me wonder if I will ever be able to do these exercises, or if I should even bother.
Or maybe I'm just lazy.
Nah. I'm going with bad kidneys on this one.
For those who are interested:
Can YOU do that??