A physical therapist explains how a modified side plank with a clamshell strengthens runners’ core and hips to improve efficiency and reduce injury risk.

Add Yahoo as a preferred source to see more of our stories on Google. In a nutshell, the clamshell targets the posterior area you might miss with other lower-body warmup moves, resulting in better ...

Too much time sitting can take a huge toll on the body over the years. From weakening certain muscles and tightening others, issues are created that can lead to postural changes, most notably stemming ...

ANY BIG TIME squat or deadlift day needs a big, similarly multi-joint movement to get ready, right? In reality, going small and simple—in this case, targeting your glutes with the clamshell ...