The Assessment of material handling strategies in dealing with sudden loading: influences of foot placement on trunk biomechanics

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      <subfield code="a">Zhou, Jie</subfield>
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      <subfield code="a">The Assessment of material handling strategies in dealing with sudden loading: influences of foot placement on trunk biomechanics</subfield>
      <subfield code="c">Jie Zhou, Boyi Dai, Xiaopeng Ning</subfield>
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      <subfield code="a">Sudden unexpected loading has been identified as a risk factor of work-related low back pain (LBP). This study investigated the effects of different foot placements and load-releasing locations on trunk biomechanics under an unexpected sudden loading event. Fifteen subjects experienced sudden release of a 6.8-kg external load from symmetric or asymmetric directions while maintaining four different foot placements. The results showed that subjects experienced on average 4.1° less trunk flexion, 6.6 Nm less L5/S1 joint moment and 32.0 N less shear force with staggered stance with the right foot forward (the most preferred placement) compared with wide stance (the least preferred placement). Asymmetric load-releasing positions consistently resulted in smaller impacts on trunk biomechanics than symmetric positions. The findings suggest that staggered stance and asymmetric load-holding position can be used as a protective load-handling posture against LBP caused by sudden loading.</subfield>
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      <subfield code="t">Ergonomics : the international journal of research and practice in human factors and ergonomics</subfield>
      <subfield code="d">Oxon [United Kingdom] : Taylor & Francis, 2010-</subfield>
      <subfield code="x">0014-0139</subfield>
      <subfield code="g">07/10/2013 Volumen 56 Número 10 - octubre 2013 </subfield>
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