Swiss ball

(redirected from Equilibrium Ball)
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Swiss ball


[From the early use of exercise balls by physical therapists in Switzerland during the 1960s.]

Swiss ball

n
(General Sporting Terms) a very large inflatable ball made of strong elastic rubber, used for physical exercise and in physiotherapy
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And although we could supply an equilibrium ball valve, this would be in lieu of the main armament and we felt it would render the vehicle somewhat ineffective.