You have put in the miles. You have followed the training plan. But somewhere around mile 20, your form starts falling apart, your hips drop, and every stride feels like a negotiation with your own body. Sound familiar?
Most marathon runners know this feeling. And most assume the fix is more miles. But research consistently points to something different. The runners who hold their form late in a race are usually the ones who spend time in the gym, not just on the road. Strength training helps improve running economy, supports joint stability, and may reduce the risk of overuse injuries.
The good news? You do not need an hour-long lifting session. A focused routine built around a handful of essential exercises every marathon runner needs can deliver meaningful results in as little as 20 minutes, two to three times per week.
Here are the exercises for marathon runners that deserve your attention.
The Single-Leg Romanian Deadlift
Running is a single-leg sport. Every stride puts your full body weight on one leg. The single-leg Romanian deadlift (RDL) trains that exact demand by building strength through the hamstrings, glutes, and lower back while challenging your balance.
This exercise helps correct strength imbalances between your left and right sides, which is one of the more common contributors to running injuries. It also strengthens the posterior chain, the group of muscles responsible for propulsion during each stride.
Key cues: Keep your hips level throughout the movement. Hinge at the hip, not the lower back. Start with a light dumbbell and focus on control before adding weight.
The Squat
Squats build strength in your quads, glutes, and hamstrings, three muscle groups that absorb impact and generate power with every foot strike. Research supports compound lower-body movements like squats to improve running economy, meaning your body uses less energy at the same pace.
Key cues: Keep your chest tall and drive through your heels. Goblet squats with a dumbbell work well for runners newer to strength training.
The Lunge
Lunges strengthen the same muscle groups as squats but add a unilateral stability challenge that closely mimics the running stride. Forward, reverse, and walking lunges all work. The key is controlling the movement on each side independently.
This exercise also trains the hip stabilizers, which help keep your pelvis level and your knees tracking properly during long runs.
Key cues: Take a stride-length step. Keep your front knee aligned over your ankle. Lower with control.
The Calf Raise
Your calves absorb and produce force with every single step. Over the course of a marathon, that adds up to tens of thousands of repetitions. Weak calves can contribute to Achilles issues, plantar fasciitis, and general lower-leg fatigue.
Standing variations target the gastrocnemius, while seated raises focus on the soleus, a deeper muscle that plays a significant role in endurance running.
Key cues: Rise all the way up and lower slowly through a full range of motion. Two to three sets of 12 to 15 reps is a solid starting point.
The Plank
A strong core keeps your torso stable, your pelvis level, and your running form intact when fatigue sets in. The plank is one of the simplest and most effective ways to build that endurance in your trunk muscles.
When your core gives out during a race, your upper body slouches, your hips drop, and your stride shortens. That hunched posture at mile 22 is often a core strength issue, not a cardiovascular one.
Key cues: Keep a straight line from your head to your heels. Squeeze your glutes and brace your midsection. Hold for 30 to 60 seconds. Progress to side planks once that feels easy.
The Hip Thruster
Strong glutes are essential for maintaining proper running posture and generating forward drive. Weak glutes often lead to compensations elsewhere, including lower back discomfort, knee pain, and excessive hip drop during the stance phase of running.
Key cues: Set your upper back against a bench with your feet flat on the floor. Drive through your heels and squeeze at the top. Avoid overworking your lower back.
How to Fit Strength Training Into Your Running Schedule
The biggest concern most marathon runners have about lifting is that it will leave their legs too heavy for running. Research suggests otherwise. When programmed correctly, strength training supports running performance without causing excessive fatigue or unwanted muscle bulk.
Schedule strength sessions on easy run days or rest days. Two to three sessions per week is typically enough to see benefits. As mileage increases closer to race day, reduce strength training frequency while maintaining the movements that matter most.
A combination of heavier compound lifts and plyometric movements may offer the greatest improvements in running economy. Start with bodyweight or lighter loads and progress gradually.
Do Not Forget What Goes on Your Legs
The right gear matters during both training and recovery. Compression socks designed with graduated pressure can help support circulation and may reduce muscle vibration during long runs. For runners managing issues like plantar fasciitis or Achilles discomfort, targeted compression sleeves offer additional support where it counts.
CEP Running builds its compression socks on decades of medical-grade compression expertise from its parent company, medi. Every product is engineered in Bayreuth, Germany, and sized by calf and ankle circumference for a precision fit. That approach is part of what sets medical-grade compression apart from standard athletic socks.
Conclusion
Marathon training is more than just logging miles. The exercises for marathon runners outlined here target the specific muscle groups that keep you strong, stable, and efficient through every phase of the race. Start with two sessions per week, focus on form over weight, and build consistency. Your body at mile 24 will thank you.
Frequently Asked Questions
Q1. How often should marathon runners do strength training?Ā
Two to three sessions per week are generally recommended. As race day approaches and mileage increases, you can scale back to two sessions while maintaining your key movements.
Q2. When should I schedule strength workouts around my runs?Ā
Place strength sessions on easy run days or rest days. Avoid heavy lifting on the same day as speed work, long runs, or hill sessions to allow proper recovery.
Q3. What weight should I start with for these exercises?Ā
Start with bodyweight or light dumbbells and focus on proper form. Once you can complete three sets of 10 to 12 reps with good control, gradually increase the load.
Q4. Can compression socks help with recovery after strength training?Ā
Compression socks designed with graduated pressure can help support blood flow and may reduce post-exercise soreness. Many runners use them during both activity and recovery as part of their overall training routine.
