Regarding frequency and intensity, how you do push-ups using bars is not much different from how you normally do traditional push-ups in your regular workout week. However, common sense should tell you that it is not healthy to overwork your body under any circumstances. We recommend you only engage in a heavy push-up bar workout no more than three times per week, with a twenty-four rest hour period in between. Like most workout gears, push-up bars are great if they are used mindfully and sensibly.