Journal ArticleDOI
Role of the Trunk in Stability of the Spine
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There is a great discrepancy between the force that can theoretically be applied to the spine if the role of intracavitary pressures is ignored and theforce that can be tolerated experimentally by the isolated ligamentous human spine.Abstract:
There is a great discrepancy between the force that can theoretically be applied to the spine if the role of intracavitary pressures is ignored and the force that can be tolerated experimentally by the isolated ligamentous human spine.In estimating that a force of approximately 2,071 pounds is imposread more
Citations
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Journal ArticleDOI
Revised NIOSH equation for the design and evaluation of manual lifting tasks
TL;DR: The basis for selecting the three criteria (biomechanical, physiological, and psychophysical) that were used to define the 1991 equation are provided, and the derivation of the individual components are described.
Journal ArticleDOI
Inefficient muscular stabilization of the lumbar spine associated with low back pain : A motor control evaluation of transversus abdominis
TL;DR: The delayed onset of contraction of transversus abdominis indicates a deficit of motor control and is hypothesized to result in inefficient muscular stabilization of the spine.
Book
Low Back Disorders : Evidence-Based Prevention and Rehabilitation
TL;DR: This book discusses building Better Rehabilitation Programs for Low Back Injuries and Developing the Exercise Program.
Journal ArticleDOI
Feedforward contraction of transversus abdominis is not influenced by the direction of arm movement
TL;DR: It is postulated that the non-direction-specific contraction of TrA may be related to the control of trunk stability independent of the requirement for direction-specific control of the centre of gravity in relation to the base of support.
Journal ArticleDOI
Human intervertebral disc: structure and function
M. D. Humzah,R. W. Soames +1 more
TL;DR: This review begins with a brief introduction in which the development, blood supply and innervation of the intervertebral disc is considered, particularly as these may influence the following sections on structure and function.
References
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ReportDOI
Space requirements of the seated operator, geometrical, kinematic, and mechanical aspects of the body with special reference to the limbs
Journal ArticleDOI
Relation of human electromyogram to muscular tension
Verne T. Inman,Verne T. Inman,H.J. Ralston,H.J. Ralston,J. B. De C. M. Saunders,J. B. De C. M. Saunders,M.B. Bertram Feinstein,M.B. Bertram Feinstein,E. W. Wright,E. W. Wright +9 more
TL;DR: It is shown that a lag of approximately 0.08 ± 0.02 sec. exists between peak electrical activity and peak tension of human muscle, which should be taken into account in the analysis of rapid movements.
Journal ArticleDOI
Some mechanical tests on the lumbosacral spine with particular reference to the intervertebral discs; a preliminary report.
TL;DR: The investigations reported here represent an effort to explore the possibilities of obtaining quantitative data on the mechanical properties of the lumbosacral spine by applying to fresh autopsy specimens of the spine testing techniques used in civil or mechanical engineering.
Journal ArticleDOI
The role of abdominal pressure in relieving the pressure on the lumbar intervertebral discs.
TL;DR: In this article, it was shown that the intervertebral disc is not necessarily so great as Bradford and Spurling calculated, but can remain within safe limits when a person lifts a heavy load with the trunk flexed.
Journal ArticleDOI
Absolute muscle force in the ankle flexors of man.
TL;DR: The present study aims at establishing results on a more reliable basis by determining the greatest resistance, against which plantar flexion of the ankle acts, and then translated into the maximum tension generated in the muscles producing the movement.
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1986 Volvo Award in Biomechanics: Partitioning of the L4 - L5 Dynamic Moment into Disc, Ligamentous, and Muscular Components During Lifting
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