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Mix an unstable surface into upper- and lower-body exercises and you have a blend of moves that seriously turns up the core challenge. That’s where sliders (and slider workouts) come into play, ...

Looking to seriously strengthen your hamstrings? Give sliding leg curls a go. Celebrity trainer Don Saladino, cofounder of NYC-based Drive495 gym—whose clients have included Blake Lively, Ryan ...

As an avid runner who finds it hard to do as much strength and conditioning work as I should, I've always found having a specific goal with my gym workouts helps to motivate me. A couple of years back ...