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: I know this bar does not lock into position but is it possible/easy to maintain a particular wrist position if desired ?
Document: If curling is causing wrist pain, then the Suprabar may be able to help.2. With the Suprabar it is very easy to go from a reverse curl to a Biceps curl which in the Suprabar version is sort of halfway between a straight-bar curl and an EZ bar curl and finally to a hammer curl without setting the Suprabar down. So it is possible to do three different exercises -- one to target the Brachialis, one to target the biceps and one to target the Brachioradialis.in one set.
There are actually two ways to grasp the handles. One allows only a normal biceps curl rather than the trinity mentioned earlier. For me this a allows a more wrist -friendly feel than doing a straight-bar curl with the same somewhat narrow hand spacing.5. Doing hammer curls with the Suprabar means that it is possible to make smaller increases in weight than is usually possible with dumbbells.
Design of this product is phenomenal - two handles rotate freely which allows you to rotate your wrists while lifting the bar, rather than having them locked in unnatural position. I recommend this to anyone who has any sort of discomfort while curling - it's worth every penny.
I have no problem with the product or the concept behind it. It actually works very well.However, be aware that some Amazon's vendors order the product directly from USA/Troy and USA/Troy, it appears, either does not know how to ship their own products or ships defective stock through Amazon.I ordered the first bar from Plumstruck/Hayneedle and received it directly from USA/Troy.
I've been dealing with a persistent tendinitis in my right wrist for over two years. After the initial injury (inflammation) went away I still had constant discomfort and tenderness every time after doing curls or after long day at work (keyboard use). The discomfort was the worst right after doing curls though. Tried everything - ezcurlbar, dumbells, etc, but nothing worked. Then I found this product and decided to try it out as I was running out of options.
This bar allows me to do curls with just the right amount of wrist rotation. It also allows me to actually increase or decrease rotation mid-rep. For that, it gets the &#34;great concept&#34; accolade.The mounting hardware that fastens the handles to the bar is cheap and doesn't use any bearings. When I'm doing reps with this bar, the handles do not rotate as smoothly as they should, because basically it's metal rubbing against metal.
Solidly made barbell, the swivel handgrips are easy on my elbow joints. It was better than expected,  Which was quite refreshing.
My Olympic EZ-Curl bars have revolving sleeves and they were not particularly expensive.Perhaps the biggest con is that there are few places to try out a Suprabar. For many trainees the price of a Suprabar is not chump change. It would be interesting to know how much use a Suprabar would get in a commercial gym setting.
Doing hammer curls with dumbbells means one must try to avoid pummeling oneself with the plate portions of the dumbbellls. Not so with a SuprabarThe company Perform Better even sells fractional Olympic barbell plates to fit the Suprabar so very small percentage increases are possible. Also, with the Suprabar it is not necessary to have a whole rack of dumbbells to cover all the poundages.
It is possible to us the Suprabar to do bent-over rowing with a neutral grip and the Suprabar really shines here. An advantage of using the Suprabar rather than dumbbells for bent-over rowing  is that the Suprabar handles do not tend to roll out one's hands as happens with dumbbells and which can make the forearms a weak link because they are already tired from other exercises. The smae forearm sparing effect happens also with exercises such as Romanian Deadlifts. Troy does not mention doing bent-over rowing with the Suprabar.
Answer: yes