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ONORM EN ISO 20957-8:2018 - Stationary training equipment - Part 8: Steppers, stairclimbers and climbers - Additional specific safety requirements and test methods (ISO 20957-8:2017)
Six-minute stepper test in hospitalized elderly patients: Convergent validity, test-retest reliability and safety
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Stamina Mini Stepper with Monitor - Low Impact Black and Gray Stepper- Great Design for at Home Workouts - Step Machines - Walmart.com
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