Companies with ergonomic battle scars get real-world tips from NIOSH
Musculoskeletal disorders (MSDs) were a huge pain point for four companies, so they recruited NIOSH to help. Now the agency issued a string of real-world, investigative ergonomics reports. While the work settings and tasks differed, the agency wound up with similar recommendations in each report. That means you may find the recommendations relevant to YOUR site.
MSDs take toll on workplaces
MSDs are conditions that involve the nerves, tendons, muscles, and supporting parts of the body. They can cause chronic pain and make moving difficult. According to the Bureau of Labor Statistics, an estimated 502,380 MSD cases involved days away from work (DAFW) to recuperate in 2021 and 2022 in U.S. private industry. That figure was 22.4 percent of ALL days-away cases.
The number of DAFW is determined by the number of calendar days after the date of the injury/illness, before an employee returns to work. It’s a measure in the severity of injuries/illnesses. An estimated 181,760 (36 percent) of all MSD cases in 2021 and 2022 involved 31 or more DAFW. The median was 14.
Workplaces investigated
NIOSH visited these workplaces to investigate:
- Pork processing plant in Michigan — Workers were suffering upper body MSDs affecting the neck, back, shoulders, elbows, wrists, hands, and fingers from tasks involving repetition, force, and awkward postures. See HHE Report No. 2021-0117-3397.
- Nuclear pharmacy — The pharmacy handles drugs that contain radioactive isotopes. Pharmacists stationed at computer stations or conveyors were suffering back pain from lifting heavy lead-shielded containers. They also suffered hand/wrist pain from a tool to draw and dispense doses of radiologic isotopes into syringes. See HHE Report No. 2020-0020-3406.
- Logistics warehouse in Georgia — Employees reported shoulder pain from packing items and loading/unloading containers and back pain from lifting. See HHE Report No. 2018-0195-3395.
- Logistics warehouse in California — Employees reported shoulder pain from packing/unpacking/sorting materials and back pain from packing/unpacking and loading/offloading boxes. See HHE Report No. 2019-0024-3398.
Broad recommendations
All four reports included common recommendations:
- Reducing the risk for MSDs,
- Getting input from employees about safety/health issues and using the input to improve working conditions, and
- Encouraging employees to report health concerns they think are work-related.
The pork processing plant report also recommended that the plant improve monitoring of MSD symptoms, injuries, and illnesses to see if interventions need to begin or change.
Reducing MSD risk
The NIOSH reports explained how to reduce the risk of MSDs in each workplace. Overarching actions included:
- Ensuring that hand-working heights on conveyors range 38 to 49 inches;
- Considering where employees handle the load — at the top, bottom, or center of items;
- Providing workstations adjustable for sitting and standing based on job demands;
- Providing antifatigue mats for employees who stand as part of their job;
- Ensuring chairs can be adjusted to the right height for each workstation; and
- Replacing broken chairs.
Other actions mentioned in the reports included:
- Not placing heavy items, like shipping containers, directly on the floor;
- Incorporating load leveling tables/carts where space is available;
- Using a remote handling device with an acceptable handle grip size with a nonslip surface;
- Placing large stock items on pallets, making it easier to use materials handling equipment; and
- Placing heavy items on lower racks to make it easier for two-person lifts.
The pork processing plant report gave other action items:
- Evaluating job tasks to find ways to reduce repetition, force, and awkward postures;
- Applying well-established interventions, such as decreasing work speed, increasing the number of employees to a task, and limiting overtime;
- Rotating job tasks for employees doing highly repetitive work;
- Increasing the number of rest breaks to reduce the duration employees spend doing continuous work;
- Providing height adjustable stands wherever stands are added to workstations;
- Regularly reminding employees that adjustments to workstations can be done quickly; and
- Designating a team to correct ergonomic hazards at work.
Getting employee input
Asking employees for their input about work builds trust and morale. However, employee input can also be useful for finding areas of focus for intervention and improvement. NIOSH suggests forming an active ergonomics committee and providing it with ergonomics training.
Encouraging employees to report
Recognizing symptoms early can reduce severity. NIOSH explains that employees should seek care, if needed, for work-related medical concerns from a healthcare provider knowledgeable in occupational medicine.
Improving MSD monitoring
NIOSH found that the pork processing plant had incomplete or inconsistent MSD data. The plant also had no formal procedure to analyze, review, report, or act on the data. To improve monitoring, the agency suggested:
- Training employees about MSD signs/symptoms,
- Ensuring that policies are not punitive for reporting injuries/illnesses and taking medical leave,
- Ensuring compliant OSHA recordkeeping and reporting,
- Using a standard data collection tool to track injuries/illnesses, and
- Regularly analyzing injury/illness data to direct changes to interventions.
Key to remember
NIOSH issued four real-world ergonomics reports. They may offer recommendations relevant to YOUR site.