Originally Posted by 5kgLifter
Yep, looks like sissy squats and they're not exactly the easiest to do without some form of stabiliser, so I guess the smith machine works wonders on that.
i would say sissy squats too, but his form is too horrible to assume he knows what he is doing.. sissy or not, his back isnt tight at all. and a hack squat machine is better for sissy squats than a smith.
in this case, im just gonna go with "dude doesnt know what hes doing"