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Intra-abdominal pressure response to multidirectional support-surface translation.
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
2004 (English)In: Gait & Posture, ISSN 0966-6362, E-ISSN 1879-2219, Vol. 20, no 2, 163-70 p.Article in journal (Refereed) Published
Abstract [en]

A complex response of the trunk muscles occurs to restore equilibrium in response to movement of the support surface. Intra-abdominal pressure (IAP) is considered to contribute to control of the trunk. This study investigated the contribution of IAP to the postural response to multidirection support-surface translation. IAP was recorded with a thin-film pressure transducer inserted via the nose into the stomach and trunk motion was recorded with an optoelectronic system with markers over the spinous process of L1. A pattern of trunk movement was recorded in response to the support-surface translations that was consistent with a 'hip' strategy of postural control. The trunk moved in a manner appropriate to move the centre of gravity over the new base of support. IAP was increased with movement in each direction, but varied in timing and amplitude between translation directions. In general, the IAP was greater with translations in the sagittal plane compared to the frontal plane and was initiated earlier for translations in the backward direction. These data indicate that IAP contributes to the postural response associated with support-surface translation and suggest that this is consistent with stiffening the spine.

Place, publisher, year, edition, pages
2004. Vol. 20, no 2, 163-70 p.
National Category
Physiology
Identifiers
URN: urn:nbn:se:gih:diva-558DOI: 10.1016/j.gaitpost.2003.08.008PubMedID: 15336286OAI: oai:DiVA.org:gih-558DiVA: diva2:173539
Available from: 2009-02-16 Created: 2009-02-16 Last updated: 2011-05-05Bibliographically approved

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CiteExportLink to record
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