and repeat once more.Jog from one marker to the next at half your top speed, but with a strong technical emphasis on form.Use an exaggerated 'lip to hip' arm motion throughout and keep everything moving in a straight line.
legs, hips and back will mean that if pounding the ground is the only way you can feel like you've done something, soon enough you'll be flat out on it doing nothing but rest, ice, compression and some occasional elevation. Exercise in other ways
