Even with your feet bolted to the floor, that would cause some serious damage to your ankles if you couldn’t pull yourself back up.

After my running, I’ll stretch my calves by doing pushups againt some railing while keeping my feet flat like that. No way I could ever use calve strength like that to pull myself back up. That shit hurts, man! (My calves are fairly strong, too.)

E

Well usually, they put them on their feet as shown in the picture.