I;m not sure what a stepper is…but assuming its a wooden block, it all depends on how high the step is relative to your knee location. If its at knee height or higher , you may find yourself struggling to do more than 20-30 repetitions with no added weight and simply holding a dumbbell in each hand will let you elicit some hypertrophy potential.
And yes, the “Berardi boy” gave it to you straight, so I take it its more a spring loaded mini stair stepper with low step height (you can take the moniker as a compliment, jf).
Is there any muscle benefit for the legs from doing the stepper or stair master?
obviously its no substitute for squats and doing the stepper isnt going to build a lot of mass in my legs, but I need a short term leg exercise.
I’m working through some back problems which restrict me from doing lifts with overhead presses or weight on my shoulders.