Keeping your body strong as a runner requires attention to the muscle groups in the gleuteal and trunk region. These muscle groups maintain posture and initiate the movement in the major muscle groups while running.  Incorporating a series of injury prevention exercises that focus to develop and balance strength and stability through the hips and back will lead to more consistent training and improved performance.  The exercises below can be utilized for injury prevention. Take care to use excellent form and a rhythm that is slow and even. Incorporate these drills before runs 4 or more days a week. Work to do 2 sets of 10 repetitions of each exercise with excellent form.

Comprehensive list of images of injury prevention exercises available here (pdf)