The running community is slowly accepting what strength and conditioning coaches have known for decades: strength training makes you a better, more injury-resistant runner. Research consistently shows that runners who include strength work 2 days per week experience fewer injuries and improved running economy (requiring less energy to maintain a given pace).
The most important strength exercises for runners target the commonly weak areas that lead to injury: single-leg work (Bulgarian split squats, step-ups, single-leg Romanian deadlifts) addresses the hip abductor and glute medius weakness that causes IT band syndrome and runner's knee. Calf raises and tibialis anterior strengthening prevents shin splints. Core strengthening (anti-rotation and anti-extension exercises like dead bugs and pallof presses) improves running posture and economy.
The key is that strength work for runners doesn't need to be heavy barbell training. Two 30-45 minute sessions per week of single-leg work, hip strengthening, and core exercises delivers the injury prevention and performance benefits without fatiguing the legs for running. Schedule strength sessions on easy running days or rest days, not before long runs or speed sessions. For time-efficient runner strength training, focus on: single-leg Romanian deadlifts, Bulgarian split squats, step-ups, calf raises with knee bent and straight, side-lying clams, and dead bugs. These six exercises address the most common runner weak points in a single, efficient session.