With my back strait no adjusting
My highest is 15min 58sec 39mil sec
I've beat that and I'm 12, plus I keep my back strait. But don't matter to him cuz he is well like 5
Longest Extended Arm Plank (Junior)
With my back strait no adjusting
Longest Extended Arm Plank (Junior)
My highest is 15min 58sec 39mil sec
Longest Extended Arm Plank (Junior)
I've beat that and I'm 12, plus I keep my back strait. But don't matter to him cuz he is well like 5