This tool was designed to calculate the risk associated with manual material handling tasks. The certified professional ergonomists at Humantech developed the htLiftCalc application, available on iTunes, to perform the NIOSH Lifting Equation whenever needed.
In 1991, NIOSH (National Institute for Occupational Safety and Health) developed the NIOSH Lifting Equation to help identify physical stressors associated with manual material handling and lifting tasks. By some estimates, manual material handling is the biggest contributor to worker injury in the U.S. According to the 2012 Liberty Mutual Workplace Safety Index, overexertion injuries, which include injuries related to lifting, are the most disabling of all workplace injuries, accounting for $13.4 billion in direct costs. As a result, the NIOSH model has been widely used by industrial safety professionals since its creation.
The new app from Humantech is available in both metric and standard measurement. It can be used at the job site to evaluate both existing and proposed lifting conditions to determine the Recommended Weight Limit (RWL) for a specific job or task, and it can identify those jobs or tasks that might require ergonomic intervention.