Strength Training for Runners: The Exercises That Matter
For years, distance runners avoided the gym, fearing they'd "bulk up." But science has settled the debate: strength training improves your running economy, reduces injury risk, and helps you progress. However, not all exercises are equally beneficial for runners.
Why Strength Train as a Runner
Based on my research, a strength training program of 2 to 3 sessions per week for 8 weeks can improve running economy by 2 to 8% — without you gaining significant muscle mass. Essentially, you'll use less oxygen for the same pace. It's like boosting your VO₂max without running faster — pretty cool, right?
Strength training also helps you maintain your form better at the end of a race. By mile 22 of a marathon, your muscles become less efficient at absorbing impact. Strengthened muscles better maintain your running economy when fatigue sets in — and help you avoid hitting the wall. Personally, that's my main motivation for incorporating it.
Essential Exercises
Lower Body
- Squats — the king of exercises, hands down. They work your quads, glutes, and hamstrings. Aim for 3 sets of 6 to 10 reps with progressive overload
- Forward and Lateral Lunges — unilateral work that corrects right/left imbalances and strengthens your knee stability
- Step-ups (on a bench) — these mimic uphill movement and strengthen your glutes in the specific range of motion used in running
- Calf Raises (Heel Raises) — 3 sets of 15-20 reps, ideally on an elevated surface for a full range of motion. Essential for preventing Achilles tendinopathy
Core Strength and Stability
- Plank (Front and Side) — 3 sets of 30-60 seconds. Core strength stabilizes your pelvis during running and limits wasted lateral energy
- Bird-Dog — excellent for coordination and lower back stability
- Glute Bridge (Hip Thrust) — strengthens the glutes, often a weak link for runners and a common cause of knee issues
Benefits of Strength Training
- Improved running economy (2-8%)
- Reduced injury risk (30-50% lower)
- Better endurance late in races
- Corrects muscle imbalances
Common Mistakes
- Doing long, light sets (ineffective)
- Strength training the day before a key workout
- Skipping eccentric exercises
- Too much volume (leads to unnecessary fatigue)
How to Integrate It Into Your Training Plan
The golden rule: schedule your strength training after an easy run (never before), or on a dedicated rest day. Two 30 to 40-minute sessions per week are more than enough. During competition season, reduce to one maintenance session. Your training paces shouldn't be hampered by soreness.
Key Takeaway: Strength training isn't a luxury — it's a direct investment in your performance and injury prevention. Squats, lunges, core work, and calf raises — done twice a week — are the effective minimum. No need to lift heavy: moderate weights with good form will get the job done.
Frequently Asked Questions
What strength training exercises should a runner do?
Fundamental exercises include squats, lunges, core work (plank), calf raises, and glute bridges. 2 to 3 sessions of 20-30 minutes per week are sufficient.
Does strength training cause weight gain?
No, targeted strength training for runners does not aim for hypertrophy (muscle growth). Moderate loads and higher repetitions build strength without significant mass gain.
Should strength training be done before or after a run?
Ideally, after an easy run or on a separate day. Avoid heavy strength training the day before a quality workout (intervals or tempo).