I have in a back exercise to know the end of 2008 the original Flexi-Bar, fear and ultimately come to appreciate (standard and intensive), and have been faced in early 2010 with one of the slightly cheaper replicas in the middle price range as part of a physiotherapy treatment, of simply not having could keep the original - the bar was a bit stiffer, the handle was to comprise of a hard material and unpleasant bit too small it easily.
Therefore, to continue my physiotherapy practice I decided to buy the slightly more expensive but ultimately much more comfortable original Flexi-Bar (standard and intensive) and do not regret the purchase. The bars are very solid, lying comfortably in the hand, come to vibrate slightly, can also be relatively strong bend (which is explicitly not recommended, but the material quality is construed according to accidental stronger bending in the heat of training endure). The beiliende poster with exercise instructions is understandable and describes on two pages with pictures and text about thirty different exercises for different muscle areas. The exercises are divided into two levels of difficulty. Almost all described exercises you train the way also coordination, balance or stability. Occasionally also obtained sets with accompanying exercise DVD's which can be clearly seen that the optimal oscillation amplitude for effective training really does not have to turn out overly large.
Whether a workout with a swing bar in each individual case is recommended (eg back or shoulder pain) should be individually with a physiotherapist, for example, in a back exercise, clarified and tested. Should the training be advised, I advise definitely to buy the more expensive originals because the savings in the cost rods (especially in some cases even dismantled from the grocery store) medium to long term could be bought with a price (unconscious faulty training through to rigid materials, long-term intake of dubious solvents, dyes or plasticizers of the handles - which will be avoided by the manual welding necessarily occurring in proper training hard).