The wines come from muscle soreness the day after. : D I had in my previous apartment, a weight bench with all the trimmings and made strength training in the moderate range. In my new apartment, I have no more room for it, unfortunately, which is why I only times paused for a while and I have finally wrestled to by giving the Isokinator a chance. I probably would not have done that until not even a friend of mine with the isokinetic training type (previously with Thera-bands) have already achieved visible results ... Granted: When a roller (? Instruction film) the device looks, we think so at first, it came from the house of "Media Store". It is waiting with a smile to a statement like "If you call immediately, you get a FREE 127-piece towel set to!" Apart from this questionable presentation (Koelbel ... please !!!), the exercises, however, are well instructed in it. What I was missing something, was a declaration of "isokinetic training" per se. It seems to me that just behind it understand the whole negative reviews not quite the principle or just have a wrong conception of this device and thus the exercises probably wrong (?). - I for one had a hammer moderate muscle soreness after the first training. ALL OVER!!! I had to pause first four days! But something is common after prolonged abstinence training. Nevertheless, that is for me: It works and trained exactly the muscle groups that it promises. From then on, I train every 2/3 System. Day with it and I go with it even more to my limits as with the dumbbells that time, there simply can not so much happen if I still can not run through completely clean the last train / pressure. If the power is off, it's just gone, leaving no barbell that flies me direction Gurgel / soil. From the training effect, I give the device so all possible points. The wrist straps are used to. I also use light, cut-resistant work gloves to the friction of the loops to avoid on the palms. In the exercises where you go to train, I slip sometimes through with the whole hand and then just do two fists, which comprises of the snares werden.- This relieves the fingers. What does not make the Isokinator: cheer you! You have to do yourself, without anyone screaming in your ear the last trains! Neither he replaced a "reasonable" testosterone treatment or steroids. Most recently, he will not tell you, you can buy what proteins you with him "cheap" and which shops sell the purest creatine. - The atmosphere of a gym so he replaced Certainly not! I do not know any "Mr. Olympia" who has ever trained so .... yet! ;) BUT: It delivers what it promises. You train a space-saving all muscle groups. More he should not also. For me 185 is enough!