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  • Meeting abstract
  • Open Access

Limb dominance for fifth metatarsal fracture in football players is position-specific

  • 1, 2,
  • 1,
  • 1,
  • 1 and
  • 2
Journal of Foot and Ankle Research20147 (Suppl 1) :A86

https://doi.org/10.1186/1757-1146-7-S1-A86

  • Published:

Keywords

  • Public Health
  • Theoretical Probability
  • Binomial Test
  • Football Player
  • Reported Incidence
Fifth metatarsal fractures (5MtF) are one of the most common traumatic foot injuries in football player [1, 2]. A previous study demonstrated that the 5MtF in football players occur frequently in their non-dominant limb [2]. Since different playing positions requires different physical demands in match-play [3], the aim of this study was to examine the hypothesis that the limb dominance for 5MtF is position-specific. Using a publicly-available injured reserve list in Japan professional football league (J-League) during 2008-2013 seasons, we collected a total of 82 cases of 5MtF. Positions (forward players: FW, midfielders: MF, and defenders: DF) and limb dominance in each player was also identified by officially-released profile in their team. To test whether the percentage of limb dominance of 5MtF differed from chance, we used a binomial test to compare reported incidence of 5MtF in non-dominant limb out of all cases to the theoretical probability of 50%. In the present study, 24 (29.3%), 33 (40.2%) and 25 (30.5%) cases of 82 cases were classified into FW, MF and DF, respectively (Figure 1-A). There were no significant differences in the incidence of 5MtF among three groups (p=0.41, Chi-square test). Overall, the 5MtF tended to be occurred in non-dominant limb (Figure 1-B; p<0.01). However, as shown in Figure 1-B, the trend was more pronounced in DF (p<0.01), and not in FW (p=0.15) and MF (p=0.24). These results suggest that limb dominance for5MtF is position-specific in football players.
Figure 1
Figure 1

A: Incidence of fifth metatarsal fracture in three groups. B: Percentage of non-dominant limb (%NDL) for fifth metatarsal fracture in each group.

Authors’ Affiliations

(1)
National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
(2)
Tokyo University of Science, Chiba 278-8510, Japan

References

  1. Ekstrand J, van Dijk CN: Fifth metatarsal fractures among male professional footballers: a potential career-ending disease. Br J Sports Med. 2013, 47: 754-758. 10.1136/bjsports-2012-092096.View ArticlePubMedGoogle Scholar
  2. Ekstrand J, Torstveit MK: Stress fractures in elite male football players. Scand J Med Sci Sports. 2012, 22: 341-346. 10.1111/j.1600-0838.2010.01171.x.View ArticlePubMedGoogle Scholar
  3. Bloomfield J, Polman R, O'Donoghue P: Physical demands of different positions in FA Premier League soccer. J Sports Sci Med. 2007, 6: 63-70. 10.1111/j.1600-0838.1996.tb00073.x.PubMed CentralView ArticlePubMedGoogle Scholar

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