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A protocol for monitoring soft tissue motion under compression garments during drop landings

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This study used a single-subject design to establish a valid and reliable protocol for monitoring soft tissue motion under compression garments during drop landings. One male participant performed six 40 cm drop landings onto a force platform, in three compression conditions (none, medium high). Five reflective markers placed on the thigh under the compression garment and five over the garment were filmed using two cameras (1000 Hz). Following manual digitisation, marker coordinates were reconstructed and their resultant displacements and maximum change in separation distance between skin and garment markers were calculated. To determine reliability of marker application, 35 markers were attached to the thigh over the high compression garment and filmed. Markers were then removed and re-applied on three occasions; marker separation and distance to thigh centre of gravity were calculated. Results showed similar ground reaction forces during landing trials. Significant reductions in the maximum change in separation distance between markers from no compression to high compression landings were reported. Typical errors in marker movement under and over the garment were 0.1 mm in medium and high compression landings. Re-application of markers showed mean typical errors of 1 mm in marker separation and
Original languageEnglish
Pages (from-to)1821-1823
Number of pages3
JournalJournal of Biomechanics
Volume44
Issue number9
DOIs
Publication statusPublished - Jun 2011

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