_CONCENTRIC_ Runners benefit from powerful hamstring and glute muscles; these muscle groups are key for speed and longevity. • Here’s how to train these muscle groups without accumulating unwanted soreness… • A brief look at biomechanics: the moving phases of a lift are CONCENTRIC (contraction) and eccentric (lengthening). • CONCENTRIC: By exploding up, the quick contraction of the hamstrings and glutes is emphasized, focusing on the power output of these muscle groups. • More power = more speed • Eccentric: By dropping the bar at the top, these muscle groups do not lengthen under load, which is where the majority of muscle damage occurs. • Less muscle damage = less soreness • By adding concentric-only lifts to a runners training program, time in the gym is maximized by increasing power output while limiting muscle soreness. This allows the next training session to be completed feeling more fresh. • Tag your running friends! 🏃🏽‍♀️🏃🏼‍♂️🏃🏽🏃🏻‍♀️ ••• #bhernmethod #running #run #run...