Yes, sorry, I didn't clarify myself when saying you added 180. You do only add 90, but to a single leg. So that's like adding 180 if you were using both legs. I stand by my statement that a single leg squat is equal resistance for each leg as a barbell squat with your bodyweight on the bar.
Originally Posted by Abu Reena
If you weigh 180, your legs lift about 90 each in a plain squat, and about 180 each if you alternate single squats.
If you do a barbell squat with both legs, the weight on the bar is distributed between both legs. With no bar, each leg lifts 90. So, to get each leg lifting 180 (the equivalent of a single leg squat), you have to add 2 x 90=180 to the bar.
If I did a single leg squat, and then added 90 to my bodyweight and did it again, I'd be exerting myself only 50% more. Because instead of lifting my entire 180 with a single leg, I'd be lifting 180+90.
Last edited by Doddibot; 06-15-2011 at 04:32 AM.
"Thanks to the combination of meat, calcium-rich leaf foods, and a vigorous life, the early hunter-gatherers were robust, with strong skeletons, jaws, and teeth." - Harold McGee, On Food And Cooking: The Science and Lore of the Kitchen