Symmetric and asymmetric manual materials handling, Part 2: Biomechanics.
Earlier studies of the biomechanics of handle placement and angles on boxes in Manual Materials Handling have been limited to sagittally symmetric tasks. This study extends the results to a palletization/depalletization task with considerable asymmetric movement. Part 2 shows how body posture, hand/handle interface, and disc compressive force change in this asymmetric task. The results were not too different from the earlier studies of symmetric tasks, except that a 'traditional' handle position in the upper part of each lateral face (the 2/2 position) proved more effective than had been anticipated.
Drury
C G
CG
Deeb
J M
JM
Hartman
B
B
Woolley
S
S
Drury
C E
CE
Gallagher
S
S
D000328:Adult; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D007596:Joints / Q000502:physiology; D008297:Male; D011187:Posture; D013647:Task Performance and Analysis