Association of previous injury and speed with running style and stride-to-stride fluctuations

R.M. Mann, L. Malisoux, C. Nuhrenborger, A. Urhausen, K. Meijer, D. Theisen

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

Running-related injuries remain problematic among recreational runners. We evaluated the association between having sustained a recent running-related injury and speed, and the strike index (a measure of footstrike pattern, SI) and spatiotemporal parameters of running. Forty-four previously injured and 46 previously uninjured runners underwent treadmill running at 80%, 90%, 100%, 110%, and 120% of their preferred running speed. Participants wore a pressure insole device to measure SI, temporal parameters, and stride length (S(length)) and stride frequency (S(frequency)) over 2-min intervals. Coefficient of variation and detrended fluctuation analysis provided information on stride-to-stride variability and correlative patterns. Linear mixed models were used to compare differences between groups and changes with speed. Previously injured runners displayed significantly higher stride-to-stride correlations of SI than controls (P = 0.046). As speed increased, SI, contact time (T(contact)), stride time (T(stride)), and duty factor (DF) decreased (P < 0.001), whereas flight time (T(flight)), S(length), and S(frequency) increased (P < 0.001). Stride-to-stride variability decreased significantly for SI, T(contact), T(flight), and DF (P </= 0.005), as did correlative patterns for T(contact), T(stride), DF, S(length), and S(frequency) (P </= 0.044). Previous running-related injury was associated with less stride-to-stride randomness of footstrike pattern. Overall, runners became more pronounced rearfoot strikers as running speed increased.
Original languageEnglish
Pages (from-to)E638-E645
Number of pages8
JournalScandinavian Journal of Medicine & Science in Sports
Volume25
Issue number6
DOIs
Publication statusPublished - Dec 2015

Keywords

  • Strike index
  • running biomechanics
  • running-related injury
  • detrended fluctuation analysis
  • HUMAN WALKING
  • FOOT STRIKE
  • DISTANCE RUNNERS
  • SHOD CONDITIONS
  • VARIABILITY
  • PATTERN
  • TIME
  • GAIT
  • RELIABILITY
  • DYNAMICS

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