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Kinetic changes during a six-week minimal footwear and gait-retraining intervention in runners.
Warne, Joe P Smyth, Barry P Fagan, John O'C Hone, Michelle E Richter, Chris Moran, Kieran A Warrington, Giles D
Warne, Joe P
Smyth, Barry P
Fagan, John O'C
Hone, Michelle E
Richter, Chris
Moran, Kieran A
Warrington, Giles D
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2016-08-29
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Abstract
An evaluation of a six-week Combined minimal footwear transition and gait-retraining combination vs. gait retraining only on impact characteristics and leg stiffness. Twenty-four trained male runners were randomly assigned to either (1) Minimalist footwear transition Combined with gait-retraining over a six-week period ("Combined" group; n = 12) examined in both footwear, or (2) a gait-retraining group only with no minimalist footwear exposure ("Control"; n = 12). Participants were assessed for loading rate, impact peak, vertical, knee and ankle stiffness, and foot-strike using 3D and kinetic analysis. Loading rate was significantly higher in the Combined group in minimal shoes in pre-tests compared to a Control (P ≤ 0.001), reduced significantly in the Combined group over time (P ≤ 0.001), and was not different to the Control group in post-tests (P = 0.16). The impact peak (P = 0.056) and ankle stiffness reduced in both groups (P = 0.006). Loading rate and vertical stiffness was higher in minimalist footwear than conventional running shoes both pre (P ≤ 0.001) and post (P = 0.046) the intervention. There has a higher tendency to non-rearfoot strike in both interventions, but more acute changes in the minimalist footwear. A Combined intervention can potentially reduce impact variables. However, higher loading rate initially in minimalist footwear may increase the risk of injury in this condition.
Citation
Warne, J.P., Smyth, B., Fagan, J.O., Hone, M., Richter, C., Nevill, A.M., Moran, K.A., & Warrington, G.D. (2017). Kinetic changes during a six-week minimal footwear and gait-retraining intervention in runners. Journal of sports sciences, 35 (15), pp 1538-1546 .
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27571390
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Journal article
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en
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ISSN
0264-0414