Conclusions Our results demonstrate that the existence of a relationship between training load and injury continues to be well supported in the literature and is strongest for subjective internal training load .
The directionality of this relationship appears to depend on the type and timeframe of load measured
Background The relationship between training load and musculoskeletal injury is a rapidly advancing area of research in need of an up date d systematic review .
The 5- or 10-km Marikenloop Run: A Prospective Study of the Etiology of Running-Related Injuries in Women.
Study Design Prospect i ve cohort . Background The popularity of running events is still growing , particularly among women ; however , little is known about the risk factors for running-related injuries in female runners . Objectives The aims of this study were to determine the incidence and characteristics ( site and recurrence ) of running-related injuries and to identify specific risk factors for running-related injuries among female runners training for a 5- or 10-km race . Methods Four hundred thirty-five women registered for the Marikenloop run of 5 or 10 km were recruited . Follow-up data were collected over 12 weeks using question naires , starting 8 weeks before the event and ending 4 weeks after the event . Two orthopaedic tests ( navicular drop test and extension of the first metatarsophalangeal joint ) were performed in the 8 weeks before the event . Running-related injuries , defined as running-related pain of the lower back and /or the lower extremity that restricted running for at least 1 day , were assessed at 1- , 2- , and 3-month follow-ups . Results Of 417 female runners with follow-up data ( 96 % ) , 93 runners ( 22.3 % ) reported 109 running-related injuries , mainly of the hip/groin , knee , and lower leg . Multivariable Cox regression analysis showed that a weekly training distance of more than 30 km ( hazard ratio = 3.28 ; 95 % confidence interval [ CI ] : 1.23 , 8.75 ) and a previous running injury longer than 12 months prior ( hazard ratio = 1.88 ; 95 % CI : 1.03 , 3.45 ) were associated with the occurrence of running-related injuries . Conclusion Hip/groin , knee , and lower-leg injuries were common among female runners . Only weekly training distance ( greater than 30 km ) and previous running injury ( greater than 12 months prior ) were associated with running-related injuries in female runners training for a 5- or 10-km event . Level of Evidence Etiology , 2b . J Orthop Sports Phys Ther 2016;46(6):462 - 470 . Epub 26 Apr 2016 . doi:10.2519/jospt.2016.6402
Conclusions Our results demonstrate that the existence of a relationship between training load and injury continues to be well supported in the literature and is strongest for subjective internal training load .
The directionality of this relationship appears to depend on the type and timeframe of load measured
Background The relationship between training load and musculoskeletal injury is a rapidly advancing area of research in need of an up date d systematic review .