Dramatically improve your running by building on the muscular strength of your calves, glutes and quads. All you need is a wall, some willpower and a stop watch. 4 weeks of wall squats will also give your mental endurance a boost.

Dramatically improve your running by building on the muscular strength of your calves, glutes and quads. All you need is a wall, some willpower and a stop watch. 4 weeks of wall squats will also give your mental endurance a boost.

Original article and pictures take https://therunningbug.com site