85 LB Isometric Push Up Plank On Knuckles Feet On 15" Bench 1:45 Body Held Tight.

Johnny Grube doing an isometric push up plank hold wearing 85 lbs on knuckles with feet on 15" bench.

Body must stay tight and engaged for no sagging.

Just about 1:45

This has got to be an easy exercise for the young generation.