Kinetic changes in gait during low magnitude military load carriage.
Indian infantry soldiers carry smaller magnitudes of loads for operational requirements. The ground reaction forces (GRFs) and impulse responses of 10 healthy male Indian infantry soldiers were collected while they walked carrying operational loads between 4.2 and 17.5 kg (6.5–27.2% of mean body wei...
| Publicado en: | Ergonomics Vol. 56; no. 12; pp. 1917 - 1928 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Dec2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104125419&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104125419 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00140139 ERO jtl: Ergonomics issn: 00140139 maglogo: Y pubinfo: dt: Dec2013 vid: 56 iid: 12 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 104125419 92942948 10.1080/00140139.2013.835871 NLM24164415 104125419 ppf: 1917 ppct: 11 formats: tig: atl: Kinetic changes in gait during low magnitude military load carriage. aug: au: Majumdar, Deepti Pal, Madhu Sudan Pramanik, Anilendu Majumdar, Dhurjati affil: Defence Institute of Physiology and Allied Sciences, Defence Research & Development Organisation, Ministry of Defence, Government of India, Lucknow Road,Delhi, 110 054, India sug: subj: Carrying Gait Military Personnel India Biomechanics India Human Foot Male Adult Walking Data Analysis Software One-Way Analysis of Variance Anthropometry Adult: 19-44 years Male ab: Indian infantry soldiers carry smaller magnitudes of loads for operational requirements. The ground reaction forces (GRFs) and impulse responses of 10 healthy male Indian infantry soldiers were collected while they walked carrying operational loads between 4.2 and 17.5 kg (6.5–27.2% of mean body weight (BW)) and a control condition of no external load (NL). The GRF and impulse components were normalised for BW, and data for each load condition were compared with NL in each side applying one-way analysis of variance followed by Dunnett'spost hoctest. Right foot data were compared with corresponding left foot GRF data for all load conditions and NL. There were significant increases in vertical and anteroposterior GRFs with increase in load. Left and right feet GRF data in corresponding load conditions were significantly different in anteroposterior plane. No significant change was observed in the temporal components of support phase of gait. Changes in impulse parameter were observed in the anteroposterior and vertical planes while carrying load greater than 23 and 16.6% of BW for the right foot and left foot, respectively. Result indicates that smaller magnitudes of loads produced kinetic changes proportional to system weight, similar to heavier loads with the possibility of increased injury risk. Observed smaller asymmetric changes in gait may be considered as postural adjustment due to load. Unique physical characteristics of Indian soldiers and the probable design shortcomings of the existing backpack might have caused significant changes in GRF and peak impulse during smaller load carriage. Practitioner Summary:This study evaluates stress on foot by recording GRF and impulse changes due to small increments of comparatively lighter military loads. Such data should be considered in evaluating the injury risk of feet during the process of optimisation of safer military load carriage and overall improvement in combat performances. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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