Speaking of power output, stairs work some of the biggest muscles in your body (think: glutes, quads, and calves. Plus, ...

Leg day is the toughest workout of the week, no matter if you are a powerlifter, bodybuilder, strongman, or an athlete looking to improve performance. Training the legs demands intensity, energy, and ...

Speaking of power output, stairs work some of the biggest muscles in your body, including your glutes, quads and calves. You’re also working against gravity to propel yourself up the stairs, which ...