Haha. I do planks for a minute now and that is the longest minute of my life!
Seriously, my low back starts to feel a pinch the longer I hold a plank. I don't like to push that too far and maybe do myself a mischief.
I still have to do the back challenge anyway.
I am Anton Zdravko Martin!
Best meet lifts: Sq 150 Kg (330 lb), Bench 120 Kg (264), DL 160 (352) @89 Kg (197)
Best gym lifts: Sq 375, Bench 280 (pause), DL 385 @205 or less
Goals beyond my wildest dreams, 600 Kg raw total, 200/160/240
Hack away at anything which isn't essential. Do what you love, and do it often. Fazc.
Everything competes for recovery so more assistance is not always the best idea. miked96