Platforms for rocking motion about a horizontal axis ; Balancing drums; Balancing boards or the like

Full Title

Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements (force-resisting aspects A63B21/00; electric or electronic controls therefor A63B24/00) > Platforms for rocking motion about a horizontal axis ; Balancing drums; Balancing boards or the like