There’s no shortage of glute-boosting training sessions online – but most overlook the smaller accessory moves that build real strength and balance. One of the most underrated? The clamshell exercise.

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

Side planks trains your obliques with movements like twisting and rotating. Leg raises help strengthen your lower abs and hip flexors, but they may strain your lower back. Keeping your core engaged ...