I'm a great fan of push-ups, they work many parts of the upper body muscle groups, and give ever increasing visable results when done over a period of time and in good quantity.
I first saw an item like this in one of those infomercials, they wanted like £30 for em, I checked here and found these for much cheaper so thought I'd give em a shot.
I didn't expect much beside the improvment in joint movement, as that is somthing that annoys me when doing press-ups.
I must say, they offer a great improvement in the overall targetting of muscle groups, you feel the strain more in the arms and shoulders than with regular prush-ups and the rotational movement negates damage to joints.
For the first week or so of using them, I couldn't complete my usual ammount of reps, as muscle groups that wern't being worked as hard before were coming under much more strain when using these.
I'm happy with the product, it does what it's ment to do, and the quality is reflected in the price....cheap and cheerful! but does the job.
R