Spinal disc hydration status during simulated stooped posture.
Stooped work has been shown to be associated with the development of low back disorders, particularly those that affect the spinal intervertebral discs. Although several studies have been conducted to evaluate the effects of physical factors on disc health, little research has focused on the effect of prolonged stooped work on disc hydration- a critical component of disc health. The purpose of this study is to explore the connection between stooped work and low back pain through controlled mechanical loading and quantitative analysis of disc hydration during in vitro simulated stooped and erect loading conditions of porcine discs. The results showed that stooped postures exhibit significantly decreased overall water content relative to erect postures. Since as disc hydration forms the foundation for overall disc health and proper function, these results have implications for the injury mechanisms associated with stooped work.
Occupational Biomechanics Laboratory, Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, USA.
Kenneth
K
Johannaber
Fadi A
FA
Fathallah
D000818:Animals; D001696:Biomechanical Phenomena; D066298:In Vitro Techniques; D007403:Intervertebral Disc / Q000502:physiology*; D017116:Low Back Pain / Q000209:etiology; D008297:Male; D008954:Models, Biological; D011187:Posture / Q000502:physiology*; D013552:Swine