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Why Does My Lower Back Hurt When Running?

Published in Biomechanics of Running 3 mins read

Lower back pain while running often stems from biomechanical issues. Poor running form and imbalances in your body contribute significantly to this discomfort.

Common Causes of Lower Back Pain While Running

Several factors can lead to lower back pain during runs:

1. Poor Running Posture and Form:

  • Forward lean: Leaning too far forward puts extra stress on your lower back.
  • Overstriding: Taking excessively long strides forces your lower back to compensate for the impact.
  • Weak core muscles: A weak core can't adequately stabilize your spine, leading to instability and pain.

2. Gait Abnormalities and Uneven Stride:

  • Pronation or supination: These foot abnormalities affect the entire kinetic chain, transferring stress up to your lower back.
  • Leg length discrepancy: A difference in leg length can cause uneven weight distribution and strain on your back.
  • Improper foot strike: Landing too hard on your heel or forefoot can create jarring impacts that reverberate through your body. Consider adopting a midfoot strike for better shock absorption.

These biomechanical factors, as noted in the provided reference, contribute significantly to lower back pain: “Biomechanical factors include concerns such as poor posture, gait abnormalities or an uneven stride. These issues, if left unattended, can contribute to lower back pain and discomfort during running." Addressing these factors is key to resolving the problem.

3. Other Potential Contributors:

  • Tight hip flexors: Restricting hip movement forces your lower back to overcompensate.
  • Weak glutes: Weak gluteal muscles compromise hip stability, transferring stress to your lower back.
  • Inadequate warm-up: Insufficient preparation leaves your muscles unprepared for the demands of running.

Solutions and Prevention

  • Consult a professional: A physical therapist or running coach can assess your running form and identify specific biomechanical issues.
  • Strengthen core muscles: Engage in regular core strengthening exercises to improve stability.
  • Improve hip and glute strength: Exercises targeting these muscle groups will improve running efficiency and reduce strain on the lower back.
  • Stretch regularly: Focus on stretches that target your hip flexors, hamstrings, and lower back.
  • Consider proper footwear: Shoes appropriate for your foot type and running style can reduce impact stress.
  • Gradual increase in mileage: Avoid sudden increases in running distance or intensity to prevent injury.

By addressing these issues, you can significantly reduce or eliminate lower back pain during running.

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