title: Dynamic loading and kinematics analysis of vertical jump based on different forefoot morphology.
abstract: OBJECTIVE
  This study examined differences in ankle motion and plantar pressure between habitually barefoot male (HBM) and habitually shod male (HSM) during vertical jump.
  
  
  METHODS
  Eighteen habitually barefoot males and twenty habitually shod males volunteered to join the test. Distance between hallux and second toe was measured with Easy-Foot-Scan. Plantar pressure and ankle kinematics were measured with EMED force platform and Vicon motion analysis system respectively. T test was taken to analyse the significant differences using Stata 12.0 software.
  
  
  RESULTS
  The distance between hallux and other toes in HBM was greater than it in HSM. HBM showed larger plantar loading under hallux and medial forefoot, while HSM showed lager plantar loading under medial and central forefoot. HBM had smaller ankle plantarflexion, eversion and external rotation than HSM.
  
  
  CONCLUSIONS
  Findings of this study provide basic information for further studies on different hallux/toe function in motion control between habitually shod and barefoot populations.
authors.affiliation: Faculty of Sports Science, Ningbo University, No. 818, Fenghua Road, Jiangbei District, Ningbo, Zhejiang Province China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Shu
authors.affiliation: Research Academy of Grand Health Interdisciplinary, Ningbo University, Ningbo, China ; Department of Mechanical Engineering, University of West Hungary, Szombathely, Hungary ; Department of Automation, Biomechanics and Mechatronics, The Lodz University of Technology, Lodz, Poland.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Faculty of Sports Science, Ningbo University, No. 818, Fenghua Road, Jiangbei District, Ningbo, Zhejiang Province China.
authors.forename: Lin
authors.initials: L
authors.lastname: Fu
authors.affiliation: Department of Mechanical Engineering, University of West Hungary, Szombathely, Hungary.
authors.forename: Gusztáv
authors.initials: G
authors.lastname: Fekete
authors.affiliation: School of Science and Sport, University of the West of Scotland, Paisley, UK.
authors.forename: Julien S
authors.initials: JS
authors.lastname: Baker
authors.affiliation: Research Academy of Grand Health Interdisciplinary, Ningbo University, Ningbo, China.
authors.forename: Jianshe
authors.initials: J
authors.lastname: Li
authors.affiliation: Faculty of Sports Science, Ningbo University, No. 818, Fenghua Road, Jiangbei District, Ningbo, Zhejiang Province China ; Research Academy of Grand Health Interdisciplinary, Ningbo University, Ningbo, China.
authors.forename: Yaodong
authors.initials: Y
authors.lastname: Gu
keywords: Foot morphology; Plantar pressure; Toes; Vertical jump