Running exposure variable and associated cut-point | RR (95% CI) | Sensitivity | Specificity | AUC |
---|---|---|---|---|

Weekly distance covered | ||||

Above 10 km/hour | ||||

13 312 m | 2.4 (1.1 to 5.3) | 0.59 | 0.63 | 0.58 |

Above 24 km/hour | ||||

653 m | 3.4 (1.6 to 7.2) | 0.52 | 0.76 | 0.63 |

Two-weekly distance covered | ||||

Above 10 km/hour | ||||

27 785 m | 1.5 (0.7 to 3.4) | 0.38 | 0.71 | 0.50 |

Above 24 km/hour | ||||

406 m | 3.9 (0.9 to 16.3) | 0.92 | 0.24 | 0.57 |

Three-weekly distance covered | ||||

Above 10 km/hour | ||||

32 006 m | 1.6 (0.7 to 3.7) | 0.65 | 0.46 | 0.51 |

Above 24 km/hour | ||||

1495 m | 2.5 (1.2 to 5.5) | 0.58 | 0.65 | 0.60 |

Four-weekly distance covered | ||||

Above 10 km/hour | ||||

45 600 m | 1.4 (0.6 to 3.2) | 0.54 | 0.55 | 0.50 |

Above 24 km/hour | ||||

1972 m | 2.5 (1.1 to 5.7) | 0.58 | 0.65 | 0.59 |

Absolute week-to-week change in distance covered | ||||

Above 10 km/hour | ||||

2524 m | 2.2 (1.0 to 4.8) | 0.58 | 0.62 | 0.60 |

Above 24 km/hour | ||||

218 m | 3.3 (1.5 to 7.2) | 0.54 | 0.74 | 0.61 |

AUC, area under the curve; HSI, hamstring strain injury; RR, relative risk.