کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10366178 872418 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Muscular and centre of pressure response to sudden release of load in symmetric and asymmetric stoop lifting tasks
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر تعامل انسان و کامپیوتر
پیش نمایش صفحه اول مقاله
Muscular and centre of pressure response to sudden release of load in symmetric and asymmetric stoop lifting tasks
چکیده انگلیسی
Sudden changes in load during asymmetric lifting may be associated with a particularly high risk of loss of balance and spinal injury. Centre of pressure (COP) motions and electromyographic responses of trunk and lower limb muscles were studied in 10 normal male volunteers during sudden release of 20, 40, 60 and 80 N stoop lifting loads in symmetric and asymmetric postures. Similar overall COP responses and muscular response strategies to sudden release of load were seen in both postures, although the asymmetric posture showed a larger medio-lateral COP displacements and greater co-contraction asymmetries. While sudden release of load in asymmetric stoop lifting does not seem to involve a greater risk of fall than symmetric lifting, the muscular response results in more complex and asymmetric loading of the trunk, indicating greater localised segmental loading and therefore increased risk of tissue injury.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Ergonomics - Volume 36, Issue 1, January 2005, Pages 13-24
نویسندگان
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