摘要
Background:Investigationsofrunninggaitamongbarefootandpopulationshaverevealedadiversityoffootstrikebehaviors,withsomepreferentiallyemployingarearfootstrike(RFS)asthefoottouchesdownwhileothersemployamidfootstrike(MFS)orforefootstrike(FFS).Here,wereportfootstrikebehaviorandjointanglesamongtraditionalHadzahunter-gathererslivinginNorthernTanzania.Methods:Hadzaadults(n=26)andjuveniles(n=14)ranatarangeofspeeds(adults:mean3.4±0.7m/s,juveniles:mean3.2±0.5m/s)overanoutdoortrackwaywhilebeingrecordedviahigh-speeddigitalvideo.Footstriketype(RFS.MFS.orFFS)andhindlimbsegmentanglesatfootstrikewererecorded.Results:HadzamenpreferentiallyemployedMFS(86.7%ofmen),whileHadzawomenandjuvenilespreferentiallyemployedRFS(90.9%and85.7%ofwomenandjuveniles,respectively).NoFFSwasrecorded.Speed,thepresenceoffootwear(sandalsvs.barefoot),andtrialdurationhadnoeffectonfootstriketype.Conclusion:UnlikeotherhabituallybarefootpopulationswhichpreferFFSwhilerunning.HadzamenpreferredMFS.andHadzawomenandjuvenilespreferredRFS.SexandagedifferencesinfootstrikebehavioramongHadzaadultsmayreflectdifferencesinrunningexperience,withmenlearningtopreferMFSastheyaccumulatemorerunningexperience.
出版日期
2014年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
