The stable of many strength training programs in general and for runners is a version of the squat. We prefer thedumbell (goblet) squat or the kettlebell squat. The kettlebell adds a layer of control due to the odd shape providing a more stimulating implement to train with. The key squatting is to hinge at the hips and not the spine keeping the butt back and chest out. Many people who squat don’t do it right and feel the exercise in the quad (thigh) muscles rather than the glut (butt) muscles.