ISO 20957-9:2016 specifies additional safety requirements for elliptical trainers in addition to the general safety requirements of ISO 20957 1. ISO 20957-9:2016 specifies safety requirements for cardiovascular equipment with a closed pattern motion and/or a reciprocating motion, where the user's feet are designed to be in contact with the footplatform, but not including steppers, performed from either a standing or seated position.
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