Abstract: Apparatus and associated methods relate to a balance exercise training equipment having a planar platform with a ballast assembly that lowers its center of mass below a ball-and-socket joint. In an illustrative example, the planar platform may couple to a support assembly through the ball and socket joint to pivot and rotate relative to the support assembly. The ballast assembly may include laterally extending members to releasably receive and retain ballast plates. In response to the laterally extending members receiving and retaining ballast plates, the center of mass may descend below a pivot point of the ball-and-socket joint. In a mount or dismount mode, a locking mechanism may lock the planar platform in a predetermined position to facilitate mounting and dismounting onto the planar platform. Advantageously, a user may adjust the center of mass in accordance with a user's skill level or exercise preference.

Abstract: A dual-mode exercise apparatus may include an articulating arm assembly coupled through a joint to a support assembly. In an illustrative embodiment, the arm assembly may include a seat centrally mounted above a ball-and-socket joint and a stabilizer member for the hands and/or feet of the user. In a first mode of operation a user sits on the seat and uses his or her core muscles to articulate the seat on the ball-and-socket joint against the resistance provided by, for instance, weights mounted on distal portions of the arm assembly. In certain embodiments the apparatus may further provide a second mode of operation which simulates rowing a kayak. In a corresponding illustrative embodiment a user sits in a second seat positioned rearward of the arm assembly and the arm assembly includes handle members. In operation the user articulates the handles in a manner akin to rowing a kayak.