Note:If a person training for something very specific, like maximal strength or sports performance, then you need a specific program and workout pedal. This is really a variation with a dumbell wrist curl. In this case, a tripod tube system is going to be used. https://git.hantify.ru/modestogoodfel/lifting-chain2005/wiki/Electric+Hoist+-+The+Most+Effective+Tool+For+Heavy+Lifting.-