Zobrazeno 1 - 10
of 39
pro vyhledávání: '"O. D. Schipplein"'
Publikováno v:
International Journal of Industrial Ergonomics. 31:51-59
The purpose of this study was to quantify the peak dynamic bending moments on the spine during sagittal plane lifting as a function of the load's initial height above the floor, the load's magnitude, and the lifting speed. Ten male subjects participa
Publikováno v:
Spine. 20:1895-1898
Study Design. This was a biomechanical study of the effect of the initial horizontal distance between a person lifting and the load. Experimental data were analyzed using a dynamic rigid link model. Objective. To determine the effect of the initial h
Publikováno v:
SPINE. 18:364-367
A biomechanical analysis was performed of lifting before and after fatiguing the quadriceps muscles. The hypothesis tested was that when the quadriceps muscles were fatigued the lifter would change lifting technique from more of a squat (leg) lift to
Publikováno v:
Ergonomics. 35:437-444
Flexion-extension moments acting at the L5/S1 level and hip joints were calculated using three different techniques; a pure static analysis, a static analysis including the inertial force of the load, and a dynamic analysis. Ten subjects participated
Autor:
O. D. Schipplein, Gunnar B. Andersson
Publikováno v:
International Journal of Industrial Ergonomics. 9:145-149
In biomechanical studies of lifting, forces and moments acting on the lumbar spine are often analyzed. Since these mechanical quantities are influenced by the technique of lifting, reproducibility becomes an issue when determining the effect of chang
Publikováno v:
Journal of Biomechanics. 23:907-912
A study was performed to determine the influence of load magnitude on the self selected technique of lifting. Specifically, it was hypothesized that with heavier weights a tendency would occur to lift more with the back and less with the legs. Flexio
Autor:
Thomas P. Andriacchi, Gunnar B. Andersson, O. D. Schipplein, David S. Butler, Jordan Trafimow
Publikováno v:
Ergonomics. 36(12)
The purpose of this study was to analyse the influence of load knowledge on lifting technique. Ten men lifted a box containing either no weight or weights of 150, 250 or 300 N with and without knowledge of what was inside the box. The kinetics and ki
Publikováno v:
Journal of biomechanics. 26(4-5)
The trunk muscles of the lumbar region were studied using magnetic resonance imaging (MRI) in five male volunteers placed in neutral and in two twisted postures. Using a CAD digitizing system, the positions of trunk muscle centroids and the cross-sec
Publikováno v:
The American journal of sports medicine. 20(6)
Thirty-two patients with an ACL-deficient knee and lower limb varus alignment and 16 healthy controls were analyzed during level walking using a force-plate and optoelectronic system. The forces and moments of the lower limb and knee joint were measu
Autor:
O. D. Schipplein, Thomas P. Andriacchi
Publikováno v:
Journal of orthopaedic research : official publication of the Orthopaedic Research Society. 9(1)
The gait of normal subjects and patients with varus deformities at the knee was studied by analyzing the interaction between the dynamic (muscular) and passive (ligamentous) restraints affecting lateral stability of the knee. A statistically determin