Spinal Mechanical Load as a Risk Factor for Low Back Pain

Abstract

We found strong evidence that leisure time sport or exercises, sitting, and prolonged standing/walking are not associated with LBP. Evidence for associations in leisure time activities (e.g., do-it-yourself home repair, gardening), whole-body vibration, nursing tasks, heavy physical work, and working with ones trunk in a bent and/or twisted position and LBP was conflicting. We found no studies, thus no evidence, for an association between sleeping or sporting on a professional level and LBP.

Does objectively measured daily duration of forward bending predict development and aggravation of low-back pain? A prospective study

“…This may be because previous studies were based mainly on selfreported exposure or cohorts without frequent followup. Some studies report a positive association (8,10) but comparison with our study is highly challenged by the aforementioned different exposure measurements between studies (11,16). A few studies support our finding of lack of association between forward bending and LBP (12,37).…”

“…with technical long-term measurements of forward bending of the back over several days in a wide variety of occupational groups in different countries in order to optimize and strengthen the documentation for occupational exposure limits for forward bending of the back However, previous studies on the association between forward bending and LBP show varying results (11,16), which may be the result of shortcomings in the methods used to assess both forward bending and development and aggravation of LBP (9,11,17). Most studies have used self-reported measures of the exposure, which can be biased by current pain state, causing differential misclassification (18).…”

The Role of Core Training in Athletic Performance, Injury Prevention, and Injury Treatment

“…Bakker et al (2) in a literature review note that there is conflicting information about the role of a number of activities traditionally thought to contribute to LBP and the occurrence of NSLBP. This may be complicated further by the fact that the ''cause'' of NSLBP may not even have originated around the onset of symptoms, and it may have been in response to something that occurred earlier in life than the manifestations of the pain (28).…”

GDynamic stiffness and transmissibility of commercially available wheelchair cushions using a laboratory test method

“…[9]. For instance, low-magnitude, high-frequency WBV is effective at increasing bone mineral density [10]; WBV at frequencies lower than 0.5 Hz can cause motion sickness and discomfort [8]; and WBV exposure of long duration and at frequencies near the body's resonance frequency (4)(5)(6)(7)(8)(9)(10)(11)(12) transmits motion in excess of the input and can be detrimental to health [8].…”

“…Because vibration exposure occurs in many occupational and recreational activities (such as sitting and driving), many studies have been conducted to determine its health consequences [4][5][6][7]. Vibration exposure that occurs while the whole body is supported by a vibrating surface, referred to as whole-body vibration (WBV), has been found to have an effect on humans' health, activities, and comfort [8].…”