Sleds, also known as prowlers, have become emblematic of football training, because they’re used to replicate the effort of pushing an object that doesn’t want to budge (like an offensive lineman). But more gyms are starting to offer them—typically if there’s a turf area.
Sleds are foremost a lower-body test. First, the glutes engage to get the contraption moving, then the quads and hamstrings activate to maintain momentum. The core fires throughout, protecting the spine and helping to transfer force to the sled. “The pushing position used to drive the sled is the same that’s needed for power sports, like running