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Prevent Painful Work-related Musculoskeletal Disorders (WMSDs) With Better Casters

Ergonomics is the science of work that focuses on making operations comfortable and efficient. Ergonomics seeks to prevent painful work-related musculoskeletal disorders (WMSD). WMSDs are musculoskeletal disorders (MSDs) aggravated by working conditions. The CDC describes MSDs as “injuries or disorders of the muscles, nerves, tendons, joints, cartilage, and spinal discs.” Furthermore, the BLS recognizes that “slips, trips, falls, motor vehicle accidents, or other similar accident” does not cause MSDs.

The use of the ergonomically-appropriate caster for an application can help to prevent WMSDs. Read on to learn how better casters can reduce a heavy cart's influence on physical demand.

Overexertion Back Pain

In 2016, the BLS revealed occupations with the highest incidents of work-related musculoskeletal disorders are:

  • Heavy and tractor-trailer truck drivers
  • Laborers and freight
  • Stock
  • Material movers
  • Nursing assistants

Between those occupations, it takes injured employees 12 days away from work to recover from WMSDs.

Caster Connection helps prevent WMSDs


WMSDs impose heavy direct and indirect costs on employers and life savings.

Direct costs of WMSDs are:

  • Injury and discomfort
  • Worker's compensation
  • Medical care expenses

Indirect costs of WMSDs are:

  • Increased premiums due to accidents and claims
  • Lost productivity/decreased work output
  • Administrative time after accidents
  • Turnover and new employee training


Mark Middlesworth has noted the following as major workplace ergonomic risk factors:

  • High task repetition
  • Forceful exertions
  • Repetitive/sustained awkward postures

For example, pushing a heavy cart can expose an employee to all three ergonomic risks. In our post, “Push heavy carts easily with one simple trick,” pushing a heavy cart can trigger muscle injuries. In an industrial context, musculoskeletal strain stems from pushing and pulling heavy carts. The total mass of a material handling cart will apply a level of stress on a person's biomechanics.

If weight load is a concern, increasing the cart's overall ergonomic performance with the CC Apex can lower the risk of WMSD.


"A lot of times casters are usually talked about when there's a problem. We like to get on the other side of that and prove how casters can improve your ergonomics in material handling." - President Joe Lyden of Caster Connection


WMSDs do not occur during a single event, but happens over time to repeated wear and tear. Work-related musculoskeletal disorders can take days to develop and can lead to an impairment that can last for weeks, months, or years. In the caster world, using products that are more ergonomically-friendly can help to prevent WMSDs.