Stair Stepper Machine World Records  

William C. completed 36 steps in one minute using a stair stepper machine while carrying a 145-pound rucksack and 35-pound barbell.

William C. completed 16 steps in one minute using a stair stepper machine while balancing a 12-pound barbell on his head.

William C. completed 17 steps on a stair stepper machine using both of his hands in one minute.