Since lock down I’ve been doing planks 4 times a week.
Each session is, normal plank, rest, then side plank for each side (resting in between). I started at 20 seconds holding everything really tight and am now at 40 seconds for each move.
But I still shake massively even from the start. I have previously had a lot of lower back issues and weakness in my general core and back. Just wanted to check if this is normal. I’d assumed thar as i got stronger the shaking would stop. It’s only on the back plank that I shake though.
Any advice welcome.