Most Important Muscle Runners Need to Strengthen to Avoid Injury

The Most Important Muscle Runners Need to Strengthen—And Why Strength Training Is Non-Negotiable

Strength Training Glutes with Weightlifting Lunges
Physical Therapist Liz Yerly

Liz Yerly

PT, MPT, ATC, LMT, CSCS, CMTPT

  Wed, Jul 30, 2025

If you’re a runner looking to improve your performance and prevent injuries, there’s one thing you must be doing: strength training. At IMPACT Physical Therapy & Sports Recovery, we specialize in physical therapy for runners and see firsthand how crucial strength work is to staying healthy and keeping on pace.

What Muscle Is Most Important for Runners to Strengthen?

We asked our IMPACT physical therapists, “What’s the most important muscle to strengthen for runners?” While the entire kinetic chain matters, the most consistent answer was clear—your glutes. Strong glute muscles are essential for stabilizing your hips, controlling leg motion, and absorbing the impact forces that come with every stride.

Weak glutes can contribute to a long list of common running injuries, including:

  • IT band syndrome
  • Runner’s knee
  • Shin splints
  • Achilles tendinitis
  • Plantar fasciitis

Why Strength Training for Runners Is Essential

Many runners skip the weight room, but strength training for runners is a game changer. Not only does it reduce injury risk, but it also improves:

  • Neuromuscular coordination
  • Running efficiency
  • Stride power and stability
  • Endurance and recovery
  • Stride power and stability

You’ll run stronger and longer with fewer aches and pains. And don’t worry—proper strength training won’t bulk you up or slow you down.

Top 5 Strength Training Exercises for Runners

Looking to get started? Our physical therapists recommend these five foundational exercises:

  • Glute Bridges
  • Single-Leg Deadlifts
  • Lateral Band Walks
  • Step-Ups
  • Plank Variations

These target your core, glutes, hips, and hamstrings—critical muscle groups for injury-free, powerful running.

One-on-One Strength Training for Runners at IMPACT

Want a personalized plan or accountability partner? We offer one-on-one fitness and corrective exercise sessions at all IMPACT locations. Whether you’re training for a marathon or just trying to stay pain-free, our specialists will design a custom strength program based on your goals and needs.

Ready to run stronger?
Complete our online appointment form or call your nearest IMPACT Physical Therapy & Sports Recovery clinic to schedule a session today!