Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: I see a crossmember on the power tower, I'm 6'3", can I rest my feet on the crossmember to do assisted pullups?
Document: This power tower is to flimsy and shakes all over the place when I do pull-ups. At 225 lbs, I thought it was going to fall on top of me when I started to crank out reps! Also, the warranty is worthless if you did not purchase it directly from XMark Fitness, and returns do NOT cover shipping (I can see why, about $100 due to its weight.) The bar is too thin as well.
It took me a little under 2 hours to build this power tower. I noticed that a few screws were missing i need to call customer service to see if they will ship that out to me, but regardless of the two screws missing the power tower is still pretty sturdy. Im 6 foot 2 about 200 pounds and it holds me well, the only way it will topple is if you are actually trying to topple it.
This is by far the best power tower out there for the money. I'm 6'4&#34; and this is the first tower I found that is comfortable for me to use. It is very sturdy and well made, and the assembly is very easy to do yourself.
I'm very satisfied with the Xmark power tower.
I searched all over the internet before deciding on this one. I'm a 5'6 female, and the main complaint with every other power tower was that the arms were too far apart to be able to comfortably use the tricep dip station and the VKR arms. Not a problem with this one. As it says they're only 21.5 inches apart. My husband and I were able to put it together with no problems at all in less than an hour. Well worth the money and we'll be using it often!
I am 6'3", 230lbs and using the chin up bar to the dips, this is a sturdy and solid piece of equipment. The roman chair is comfortable and positioned high enough that my feet do not touch the floor with legs extended. I have not used the rollers to hold the feet for sit ups due to limited space.
I weigh about 190 lbs and have a height of 6'3&#34;. I have not experienced any bending and I can use the different arm components without my feet touching the ground.Do keep in mind though, doing pull-ups can result in a banged up shin if you are not careful about the lower bar where the sit-up cushions are located.
I'm 6'3 & wt. 205 lbs. and it handles my ht. & wt. with no problems.....would recommend product to my friends and any one else!! !
I was looking for a power tower unit for quite a while before I fell on this gem.
I haven't enjoyed working out this much in a long time. The Xmark fitness power tower has revived the motivation I once had, thank you!
Answer: no