The present invention relates to a method for producing a fitness apparatus having the following components: a flexible bar which can be set in oscillation upon operation of the fitness apparatus by a user, a grip area arranged centrally on the flexible bar for the user to hold the fitness apparatus and end caps arranged at both ends of the flexible bar, wherein the method includes the following method steps: arranging at least one respective end weight at the ends of the flexible bar, inserting the flexible bar with the end weights arranged thereon into a first molding tool to form the end caps, foaming out of the first molding tool with a first foam material to produce at least the end caps and subsequent hardening of the first foam material. The invention also relates to a fitness apparatus produced in particular with the inventive method.