, infections, fatigue and even injury - not to mention leaving you less than raring to go for your next session. Click through our slideshow to find out what works and why.
it's no surprise that the journal Medicine and Science in Sports and Exercise reports that harder running surfaces are more often associated with injuries. But not all off-road surfaces have the same benefits. "Different surfaces influence how
's no surprise that the journal Medicine and Science in Sports and Exercise reports that harder running surfaces are more often associated with injuries. But not all off-road surfaces have the same benefits. "Different surfaces influence how much energy is lost
