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Reducing Impact Loading in Runners: A One-Year Follow-up.

Bradley J Bowser¹, Rebecca Fellin², Clare E Milner³

¹Department of Health and Nutritional Sciences, South Dakota State Universitey, Brookings, SD.

Medicine and Science in Sports and Exercise

|July 6, 2018

Summary

Runners can reduce impact loading and injury risk with gait retraining. This program teaches softer running and shows lasting benefits for injury prevention in runners.

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Area of Science:

Biomechanics of running
Sports injury prevention

Background:

Increased vertical impact loading during running is linked to common running-related injuries like stress fractures, patellofemoral pain, and plantar fasciitis.
Gait retraining offers a potential intervention to mitigate these risks.

Purpose of the Study:

To evaluate the immediate and long-term effectiveness of a gait retraining program designed to reduce high impact loading in runners.
To assess the impact of teaching runners to adopt a softer running style.

Main Methods:

Nineteen runners with high tibial shock (TS) participated in a 2-week control period followed by 2 weeks of gait retraining with real-time TS feedback.
Key variables including peak TS, vertical impact peak, and loading rates were measured immediately post-retraining and at a 1-year follow-up.

Main Results:

Significant reductions were observed in all measured variables post-retraining (P < 0.001).
Tibial shock decreased by 32%, vertical impact peak by 21%, vertical instantaneous loading rate by 27%, and vertical average loading rate by 25%.
These reductions were sustained at the 1-year follow-up.

Conclusions:

Gait retraining effectively reduces impact loading in runners.
The benefits of this intervention persist for at least one year.
This simple gait retraining method may significantly lower the risk of musculoskeletal injuries in runners.