This laboratory experiment examined the effect of lifting parameters and their interactions as follows: lifting frequency, vertical lifting distance, and load weight.
In this simulation study, 10 female building construction workers lifted weights in 48 different combinations of lifting parameters, in which four different lifting frequencies (1, 4, 7, and 14 lifts min−1), three different load weights (5, 10, and 15 kg) and four different vertical lifting heights (knee, waist, shoulder, and maximum reach) were considered.
Table 1 Lifting parameters derived from the key.
Finally, it is concluded that the interaction effects between different lifting parameters must be considered in addition to the effects of individual lifting parameters for further research as it implicates potential modifications to the currently recommended weight load estimation procedure.
Different tool lifting parameters have produced different edge profiles, as shown in Fig. 12 (right), where the extreme right of the graph represents the true edge of the surface.
MANOVA result showed that the main effects were significantly (p<0.0001) related with normalized working heart rate and the interaction effects of different lifting parameters contributed 10.01% of total variance of normalized working heart rate.
So a rule is considered as strong if it has a value greater than 1 for the lift parameter.
This is done by adjusting control inputs like choke valves, artificial lift parameters and routing of well streams.
Ranges of fretting parameters of the rope during lifting with different kinematic parameters were determined.
The equation uses a series of lifting multipliers (parameters) to calculate corresponding recommended task weight limits.
