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The effects of British Army footwear on ground reaction force and temporal parameters of British Army foot-drill

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  • Alex Rawcliffe
  • Scott M Graham
  • Richard J Simpson
  • Gavin Moir
  • Russell Martindale
  • Stelios Psycharakis
  • Chris Connaboy

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    Rights statement: This is the Accepted Manuscript of Rawcliffe, A. J., Graham, S. M., Simpson, R. J., Moir, G. L., Martindale, R. J., Psycharakis, S. G., & Connaboy, C. (2017). The Effects of British Army Footwear on Ground Reaction Force and Temporal Parameters of British Army Foot-Drill. Journal of Strength and Conditioning Research, 1. doi:10.1519/jsc.0000000000002139 The final published version can be found at http://journals.lww.com/nsca-jscr/Abstract/publishahead/The_Effects_of_British_Army_Footwear_on_Ground.95811.aspx

    Accepted author manuscript, 766 KB, PDF document

https://insights.ovid.com/crossref?an=00124278-900000000-95811
Original languageEnglish
Pages (from-to)754-762
Number of pages9
JournalJournal of Strength and Conditioning Research
Volume34
Issue number3
Early online date9 Aug 2017
DOIs
Publication statusPublished - 31 Mar 2020

Abstract

High rates of occupational training-related lower-limb musculoskeletal [MSK] overuse injuries are reported for British Army recruits during basic training. Foot-drill is a repetitive impact loading occupational activity and involves striking the ground violently with an extended-knee [straight-leg] landing. Foot-drill produces vertical ground reaction forces [vGRF] equal to and/or greater than those reported for high-level plyometric exercises/activities. Shock absorbing footwear aid in the attenuation of the magnitude of vGRF, resulting in a reduced risk of lower-limb MSK overuse injury when running. The potential shock absorbing characteristics of standard issue British Army footwear on the magnitude of vGRF and temporal parameters of foot-drill are scant. Therefore, this study sought to determine the magnitude of, and examine changes in vGRF and temporal parameters of foot-drill across three types of British Army footwear. Sampled at 1000hz, the mean of eight-trials from fifteen recreationally active males were collected from four foot-drills; stand-at-ease [SaE], stand-at-attention [SaA], quick-march [QM] and halt. Analysis of a normal walk was included to act as a comparison with quick-march. Significant main effects [P <0.05] were observed between footwear and foot-drill. The training shoe demonstrated significantly greater shock absorbing capabilities when compared with the combat boot and ammunition boot. Foot-drill produced peak vGRF and peak vertical rate of force development in excess of 5bw, and 350bw/sec, respectively. Time to peak vGRF ranged from 0.016- 0.036ms across foot-drills, indicating that passive vGRF may not be under

    Research areas

  • recruits, force plate, basic military training

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