Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: If you loop it around your foot, wouldn't your foot reach the ground (if used on a door mount)? Can you loop around your knee instead?
Document: My pull-up bar is probably (I'm estimating) about 6'6" from the ground, and I don't have to modify the way I stand in the band - when I'm in it, it pulls me at a slight angle (tilted just about 10 degrees) and I'm able to keep my body straight, foot in the loop, and pull myself up.
The only thing I didn't like is the rubbing against my leg and knee but I got used to that also. Other than that, I highly recommend it.
Setting it up is a piece of cake. It takes a few reps to get use to it. If your doorway is short like in a basement then your foot may hit the ground. This caused me to push my foot more forward starting then bring it underneath me as I continued pulling up.I could feel the assist and very much needed it.
We have been doing p90x and other routines for the past year and a half. Pull ups are still the hardest thing for both of us despite getting stronger and quite fit. Now that I have the assist device I can see the benefits over using a chair. I thing I'll be able to do them unassisted in a few more months. Only complaint is when you put your foot in, your knee gets in the way a little, but still a great device.
I purchased this item in winter of 2011 by the spring I no longer needed it to aide in my pull up workouts. It quickly turned into a restraint device for the neighbors kid. We just put the waist band around him and tied the other end to a stake in the ground. His range wasn't the greatest however, his legs quickly grew to a massive size for a 4 year old. Also, when he would act up or back talk the device is great for whippings as well.
This thing is great to have around. I've always struggled with pull-ups and this helps me max out at a decent number. A nice feature is that you can pull the centre band out and then you have a little less assistance once you improve. Would give 5 stars but the foot strap is pretty uncomfortable,  but the functionality is there so I'm still happy with my purchase
I love P90x but I used to shudder every time I had to do a pull up. The method using the chair for help didn't give me the correct form, and I never felt as though I was making progress in that area. This really helps! I can now do some actual pull ups! One little issue is where you put your foot in, I wound up getting a huge bruise on my leg from where the band hit.
Does what it says. I'm happy with the product. I can't see this will work with a door type pull up bar though.
However, it gives increasing assistance the further to the ground you are, so you aren't working in the bottom end as much.
It is great because you are going straight down and back up only using your arms and back instead of pushing up with your leg. My back was actually sore after the first week of using this which it has not been since about the middle of phase 2.
Answer: yes