Check the staircase first
Use a dry, well-lit stair with a clear tread. Remove loose objects, keep children and pets away from the movement area, and use the handrail whenever you need it.
Start on the bottom step
Plant your whole foot, stand up through the working leg, then step down softly. Change the lead leg regularly rather than letting one side do every repetition.
Make it easier or harder
Slow the pace and hold the rail to reduce the demand. To add effort, extend the time before adding speed. Never skip steps or rush the descent for a short indoor burst.
Know when stairs are not the right choice
Choose a flat-floor exercise if balance, joint pain or dizziness makes stairs uncertain. Stop immediately if the movement feels unsafe.