didn't read the article but i used to burn 750 cals by running 6miles at 7.5min/mile (45mins) so that sounds right. and i can promise you 1.75hrs of roller hockey even with starting/stopping for breathing is *WAY* harder than running 8 miles straight. the stop/go nature and quick turns while doing lots of upper body work to play against solid skaters and stronger people makes it such a sick workout that there's no way 1k cals is wrong for that workout. plus there's passing and shooting and puck handling when in a small rink with quick movements is so unfathomably harder than consistent cardio it's just a world apart.
not sure what your goals are, but if they're fat loss doing all this while on a juice only type diet means a lot of your weight loss is going to come from muscle loss. On such a severe deficit you need to eat a lot of protein to hold on to your muscle (like, pretty much 95% of your cals from lean protein, with no fat or carbs). If all you care about is losing lbs, ofc it will work just fine.
yea i realize it's illogical but some of me is irrational. i wanna see the scale say something way less than it says now lol. then i'll be doing 2 days of recovery, having an ex come by for 4 days which will not be ideal but then altering my diet to high protein, low carb, and high exercise to do the rest of the work til i look like i wanna look then i can switch to maintenance diet.
the fact that i BARELY fit into my "fat" clothes (i.e. 34/30 pants) just upset me too much. and i realize that's also along the lines of fat loss as muscle is denser than fat but again, 1 step at a time...as illogical as that may be lollll