A step towards understanding the mechanisms of running-related injuries

Laurent Malisoux, Rasmus Oestergaard Nielsen, Axel Urhausen, Daniel Theisen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

80 Citationer (Scopus)

Abstract

OBJECTIVES: To investigate the association between training-related characteristics and running-related injury using a new conceptual model for running-related injury generation, focusing on the synergy between training load and previous injuries, short-term running experience or body mass index (> or <25kgm(-2)).

DESIGN: Prospective cohort study with a 9-month follow-up.

METHODS: The data of two previous studies using the same methodology were revisited. Recreational runners (n=517) reported information about running training characteristics (weekly distance, frequency, speed), other sport participation and injuries on a dedicated internet platform. Weekly volume (dichotomized into <2h and ≥2h) and session frequency (dichotomized into <2 and ≥2) were the main exposures because they were considered necessary causes for running-related injury. Non-training-related characteristics were included in Cox regression analyses as effect-measure modifiers. Hazard ratio was the measure of association. The size of effect-measure modification was calculated as the relative excess risk due to interaction.

RESULTS: One hundred sixty-seven runners reported a running-related injury. Crude analyses revealed that weekly volume <2h (hazard ratio=3.29; 95% confidence intervals=2.27; 4.79) and weekly session frequency <2 (hazard ratio=2.41; 95% confidence intervals=1.71; 3.42) were associated with increased injury rate. Previous injury was identified as an effect-measure modifier on weekly volume (relative excess risk due to interaction=4.69; 95% confidence intervals=1.42; 7.95; p=0.005) and session frequency (relative excess risk due to interaction=2.44; 95% confidence intervals=0.48; 4.39; p=0.015). A negative synergy was found between body mass index and weekly volume (relative excess risk due to interaction=-2.88; 95% confidence intervals=-5.10; -0.66; p=0.018).

CONCLUSIONS: The effect of a runner's training load on running-related injury is influenced by body mass index and previous injury. These results show the importance to distinguish between confounding and effect-measure modification in running-related injury research.

OriginalsprogEngelsk
TidsskriftJournal of Science and Medicine in Sport
Vol/bind18
Udgave nummer5
Sider (fra-til)523-528
Antal sider6
ISSN1440-2440
DOI
StatusUdgivet - 2015

Fingeraftryk

Dyk ned i forskningsemnerne om 'A step towards understanding the mechanisms of running-related injuries'. Sammen danner de et unikt fingeraftryk.

Citationsformater