September 2022: Stress and Its Role in Musculoskeletal Disorders

Recurring stressors inflict many impacts on employees, management, processes, collaboration and of course the bottom line – but how does stress accelerate the development of Musculoskeletal Disorders and why are employers assessing the risk and implementing mitigation programs?

 

With persistent inflationary pressures, palpable climate change effects, work-related psychosocial pressures and other significant stressors, employee stress is at historic highs.  Before COVID-19, employee stress had already been clearly identified as a highly costly and disruptive health issue affecting employers as most people have been receiving significant chronic stressors from multiple sources over the recent 24 months which will continue through next year at the very least.  

For these and many other good reasons, employee stress has become an important mission-critical priority on the radar of leadership who are concerned about Musculoskeletal Disorders, organizational effectiveness and wellness.

There are many types of stress of course.  A very recent August article at WorkersCompensation.Com “Why are Psychosocial Risks a Dangerous Workplace Hazard?” reviewed a particularly damaging type of stress, Psychosocial, and included sound actionable guidance for safety professionals which employs practical safety approaches we often use in other safety areas and are not difficult to reapply to mitigate the risks due to stress:

It’s been known for decades that stress creates physiological responses.  Significant research has conclusively determined that stress plays a significant role, as an independent variable, in the development of Work-Related Upper Extremity MSDs. 

Psychological stress triggers physiological stress including dilation of the pupils, increased heart rate, release of adrenaline and cortisol into the bloodstream, increased muscle tension plus adverse decreases in immune system response. Stress increases the duration of muscle activity while reducing the likelihood for tissue recovery thereby causing fatigue and inflammation.

Understood through a pathophysiological lens, stress impairs circulation affecting the supply of oxygen and other nutrients to tissues while likewise impairing removal of waste products such as carbon dioxide and lactic acid. In fact, studies have shown that risk factors for neck-shoulder pain, arm-wrist-hand and back pain in computer workers consist of a mixture of physical and psychosocial conditions.

An extensive literature review was recently published by European Agency for Safety and Health at Work “New Evidence on The Link Between Psychosocial Factors and Musculoskeletal Disorders” which summarized: “A new literature review looks at the link between these risk factors and MSDs and discusses the importance of prevention and rehabilitation. 

Beyond the innate physical pathology of musculoskeletal disorders and eventual workplace injuries of computer workers, this additional factor of “employee stress” prominently layers on top of the need of actively managing computer user behaviors including posture, movement and recovery time as an important organizational mitigation strategy and best practice.

The Psychological Power of Recovery Time

Health and safety professionals clearly understand the vital importance of the behaviors of working in neutral postures and providing metabolic recovery time while working (microbreaks) to break up static postures.  Beyond that, however, the value of microbreaks goes much further for employees and employers.

For decades, psychologists have studied people’s work behaviors and habits, publishing across the top peer-reviewed Psychological Journals.  The studies have examined the impacts of providing brief recovery time while working, which any person can learn with the right approach.

What is most repeated and common in the research is how there are simple behavioral improvements which yield remarkable, reliable and sustainable gains in comfort, focus, fatigue and accuracy.

A representative article published in The American Psychological Association Give me a break along with similar articles and papers, summarize the benefits of frequent brief microbreaks while working (1 or 2 minutes per hour) and their impact on physical and mental health:

 

As with everything we do in our lives, it’s one thing to be aware of something we should do and quite another to make it a new long-term behavior where it becomes automatic.  This applies to any human skill including music, sports and even wearing seat belts or healthfully working on our computers for 8-10 hours each workday.  At the top of the list of successful approaches is to have a coach guide us to making new behaviors automatic.

ErgoSuite’s unique gentle behavioral coaching tools, for Windows and Mac, are widely implemented by the world’s most successful employers to help employees learn to automatically work with the desired behaviors of using neutral postures, taking micro-breaks while working and moving about periodically during their day to stretch, break up unhealthful static postures and help mitigate the effects of chronic stress. 

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