Extrinsic risk factors for injury in the youth runner
| Topic | Statement | SORT rating |
| Training | Limited evidence supports low step rate as a risk factor for shin injury. | B |
| Training | Limited evidence supports training less than 8 weeks during the summer as a risk factor for in-season injury in adolescent runners. | B |
| Training | Limited evidence supports running predominantly on hills or infrequent alternating short and long training mileage during the summer as risk factors for in-season injury in adolescent runners, especially girls. | B |
| Training | Limited evidence supports training intensity as a risk factor for injury in adolescent runners. | B |
| Training | Limited evidence does not support any specific running surface type during summer or seasonal training/competition as a risk factor for injury that may be incurred during a competitive season in adolescent cross country runners. | B |
| Footwear and Footstrike Mechanics | There are no prospective data available regarding the impact of footwear on injury risk in youth runners. | C |
| Footwear and Footstrike Mechanics | There are no reports available to assess if inherent footstrike mechanics or specific interventions to change footstrike mechanics alter the risk of injury in youth runners. | C |
SORT, strength of recommendation taxonomy.