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A comparison of economy and sagittal plane trunk movements among back-, back/front- and head-loading

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)1-25
Number of pages25
JournalErgonomics
Early online date14 May 2018
DOIs
StatePublished - 3 Jul 2018
Externally publishedYes

It has been suggested that freedom of movement in the trunk could influence load carriage economy. This study aimed to compare the economy and sagittal plane trunk movements associated with three load carriage methods that constrain posture differently. Eighteen females walked at 3 km.h-1 with loads of 0, 3, 6, 9, 12, 15 and 20 kg carried on the back, back/front and head. Load carriage economy was assessed using the Extra Load Index (ELI). Change in sagittal plane trunk forward lean and trunk angle excursion from unloaded to loaded walking were assessed. Results show no difference in economy between methods (p = 0.483), despite differences in the change in trunk forward lean (p = 0.001) and trunk angle excursion (p = 0.021) from unloaded to loaded walking. We conclude that economy is not different among the three methods of load carriage, despite significant differences in sagittal plane trunk movements.

    Research areas

  • Journal Article

Documents

External organisations

  • a School of Social and Health Sciences, Leeds Trinity University , Leeds , UK.
  • b Cape Peninsula University of Technology , Cape Town , South Africa.
  • c Leeds Beckett University , Leeds , UK.

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