| Autor: |
Warne JP; a School of Health and Human Performance, Applied Sports Performance Research Group , Dublin City University , Dublin , Ireland.; d Department of Applied Science , Institute of Technology Tallaght , Dublin , Ireland., Smyth BP; a School of Health and Human Performance, Applied Sports Performance Research Group , Dublin City University , Dublin , Ireland., Fagan JO; a School of Health and Human Performance, Applied Sports Performance Research Group , Dublin City University , Dublin , Ireland., Hone ME; a School of Health and Human Performance, Applied Sports Performance Research Group , Dublin City University , Dublin , Ireland., Richter C; a School of Health and Human Performance, Applied Sports Performance Research Group , Dublin City University , Dublin , Ireland.; d Department of Applied Science , Institute of Technology Tallaght , Dublin , Ireland., Nevill AM; b School of Sport, Performing Arts and Leisure , University of Wolverhampton , Walsall , UK., Moran KA; a School of Health and Human Performance, Applied Sports Performance Research Group , Dublin City University , Dublin , Ireland.; c Department of Sport Medicine , Sports Surgery Clinic , Dublin , Ireland., Warrington GD; a School of Health and Human Performance, Applied Sports Performance Research Group , Dublin City University , Dublin , Ireland. |
| Abstrakt: |
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. |
