What Is the Lifting Index

The lifting index (LI) provides a relative estimate of the physical stress associated with a manual lifting job. The equation for the LI is: LI = Load weight (weight of load in pounds or kilograms)/RWL. The LI can be used to estimate the relative magnitude of physical stress for a task or job.

How do you calculate lift index?

Lifted Index. The lifted index (LI) is calculated as the difference between the observed temperature at 500 hPa and the temperature of an air parcel lifted to 500 hPa from near the surface. The more unstable the environment, the more negative the LI.

What is composite lifting index?

The CLI (Composite Lifting Index) determines the additive affect of several tasks and is obtained by renumbering the tasks in decreasing order of physical difficulty as indicated by the STLI of each task.