Learn how to do a step-up, whether you're a beginner or advanced. The step-up exercise strengthens the lower body including glutes, quads, and hamstrings.
Romanian Deadlift: How to Do It, Muscles Worked popsugar.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from popsugar.com Daily Mail and Mail on Sunday newspapers.