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A History of low back pain affects pelvis and trunk mechanics during a sustained lift-lower task

Recurso electrónico / electronic resource
MARC record
Tag12Value
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001  MAP20130023526
003  MAP
005  20130828144902.0
008  130729e20130603esp|||p |0|||b|spa d
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24502‎$a‎A History of low back pain affects pelvis and trunk mechanics during a sustained lift-lower task‎$c‎Joseph F. Seay...[et.al]
520  ‎$a‎This study compared three-dimensional trunk and pelvis range of motion (ROM) during a sustained asymmetric box lift/lower task between a group with a history of low back pain (HBP, n = 9) and a group with no history of low back pain (NBP, n = 9). Participants lifted an 11-kg box for 10 min at 12 cycles/min from ankle height in front to shelves 45 deg off-centre at waist height. Kinematic data were collected at the beginning (min1), middle (min5) and end of the bout (min9). Two-way analyses of variance were performed for all variables. Pelvis and trunk transverse ROM were similar at min1. By min9, HBP group did not change (31.9 ± 9 deg); however, ROM decreased in NBP group (21.6 ± 6 deg, p < 0.05). Therefore, despite no current pain, the HBP group demonstrated protective lifting mechanics compared to controls. Also discussed are implications for studying lifting paradigms at sub-maximal effort over longer periods of time.
7730 ‎$w‎MAP20100019818‎$t‎Ergonomics : the international journal of research and practice in human factors and ergonomics‎$d‎Oxon [United Kingdom] : Taylor & Francis, 2010-‎$x‎0014-0139‎$g‎03/06/2013 Volumen 56 Número 6 - junio 2013 , p. 944-953