The energetic cost of gait retraining

NewsBot · Aug 21, 2016

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The energetic cost of gait retraining: A pilot study of the acute effect
Andrew D. Townshend, Melinda M. Franettovich Smith, Mark W. Creaby
Physical Therapy in Sport; Article in Press

Highlights
One session of gait retraining to reduce tibial acceleration resulted in an increased oxygen cost (VO2).
The change in tibial acceleration that occurred following gait retraining was not related to the change in VO2.
Practitioners should be cognisant of the possible acute negative effects of gait retraining upon performance outcomes.
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Objective
To investigate the acute effect of gait retraining aimed at reducing tibial peak positive acceleration (PPA) on energetic cost (VO2).

Design
Intervention with a pre/post-test design.

Setting
Laboratory.

Participants
12 healthy male runners. (23.4 ? 5.3 years, 179.7 ? 4.3 cm, 75.6 ? 9.2 kg).

Main outcome measures
Tibial PPA and oxygen consumption (VO2) were measured after a five minute baseline run and at the end of a gait retraining session aimed at minimizing tibial PPA.

Results
Tibial PPA significantly decreased between baseline and after gait retraining (32.6%, p = 0.007). VO2 significantly increased between the two time periods (9.3%, p = 0.008). There was no correlation between change in tibial PPA and change in VO2 (p = 0.956, r = 0.018).

Conclusion
Practitioners who aim to reduce injury risk by minimizing tibial PPA in runners need to consider the possible acute effect on performance as a result of changes in VO2. Further investigation is warranted to understand the energetic cost of different kinematic strategies used by individuals.
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Admin2 · Aug 21, 2016

Related Topics:
Cadence of 180 steps/min to treat and reduce risk of running injury
Gait retraining to reduce lower extremity loading in runners
Gait retraining for the treatment of patellofemoral pain
Use a wider base of gait for medial tibial stress syndrome

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