Fatigue Management: Causes, Impact and Management of Fatigue at Work

Fatigued employees in the workplace are more than just a productivity concern; they represent a significant financial burden. In the United States alone, the estimated cost of fatigue-related issues surpasses $18 billion annually. Beyond the financial impact, exhausted workers also pose considerable safety risks to themselves and their colleagues. Shift workers, in particular, face a heightened risk of serious incidents when fatigued.

To effectively manage fatigue in the workplace, employers need to understand its causes and impacts. Let us delve deeper into workplace fatigue and explore strategies for a healthier, safer work environment through structured fatigue management practices.

Causes of Workplace Fatigue

Fatigue is a state that can be experienced in any job, regardless of physical or mental demands. It affects everyone regardless of skill, knowledge, and training. Fatigue refers to a state of feeling tired, weary, or exhausted. In a work context, fatigue describes an individual's physical or mental state that impairs their ability to perform tasks effectively and work safely.

Fatigue can stem from multiple factors such as sleep deprivation, prolonged wakefulness, circadian phase (time of day) disruptions, and heavy workloads. Thus, understanding these causes is paramount to developing effective management strategies.

Physical Workload

Physical workload refers to demands placed on an individual while performing their duties. These job demands include repetitive tasks, heavy lifting, or prolonged standing. When someone is required to perform physically demanding tasks for extended periods without adequate rest or breaks, fatigue often follows.

Workers who experience high physical workload, like those in construction or manufacturing industries, face a higher risk of fatigue-related accidents and injuries. Bodies pushed beyond their limit become more susceptible to mistakes and errors, undermining overall workplace safety.

Mental Workload

In addition to physical demands, mental workload also plays a significant role in causing fatigue. Mental workload refers to cognitive demands placed on an individual's brain while performing tasks, including decision-making, irregular working hours, and coworker relationships. Jobs requiring high levels of mental exertion, such as air traffic controllers or emergency responders, can be mentally draining.

When someone is constantly required to make quick decisions or process large amounts of information without sufficient rest periods, reduced attention span, decreased accuracy, and increased physical exhaustion often result. Poor communication within an organisation, lack of support from colleagues and management, plus workplace conflicts, all add to mental workload too.

Technology has greatly impacted cognitive demands placed on individuals at work. With constant use of computers, smartphones, and other devices, employees face pressure to process and respond to a high volume of information, such as an influx of emails.

Environmental Workload

Work environment also plays a significant role in causing fatigue. Factors such as noise, temperature, vibration, and lighting can impact one's ability to concentrate and perform tasks efficiently. A noisy open office layout, for example, distracts staff and decreases productivity.

Jobs requiring extreme environmental conditions, such as high temperatures or loud industrial settings, represent high environmental workloads. Such environments create physical discomfort and can trigger mental and emotional exhaustion.

Workers Prone to Fatigue

Aside from roles mentioned above, workers in Australia at high risk of fatigue include those in specific occupations where contributing factors are prevalent. Affected groups include:

• Shift workers, like nurses, doctors, and emergency services personnel
• Transport workers, such as truck drivers, pilots, and train operators
• Night workers, such as security guards, hospitality workers, and factory employees
• High-stress workers, such as police officers and firefighters
• Fly-in fly-out (FIFO) workers in mining, oil and gas industries
• Drive-in, drive-out workers (DIDO) in remote areas
• Construction workers and other manual labourers
• Hospitality and service industry workers, especially those working long hours or irregular shifts
• Seasonal workers
• On-call and call-back workers
• Emergency service workers
• Legal professionals and IT consultants, especially those working on billable hours

Employers overseeing staff in remote and isolated work settings should pay particular attention, as fatigue risk compounds when support resources are limited.

Impact of Workplace Fatigue

Fatigue harms workers' health and adversely affects productivity and safety in the workplace. Fatigue can result in a variety of adverse outcomes, including:

Increased Risk of Accidents

Fatigue has been linked to increased health and safety risks, with tired workers more likely to make mistakes or experience slower reaction times during critical tasks. This poses a danger not only to the individual but also to coworkers and overall workplace safety.

Health Problems

Long-term fatigue can lead to various health issues such as obesity, diabetes, heart disease, and mental health disorders like depression and anxiety. When the body remains constantly fatigued, it becomes more susceptible to illnesses due to a weakened immune system. Chronic fatigue can also weaken muscles and bones, making individuals more prone to injuries.

Negative Impact on Mental Health

Prolonged periods of fatigue can also significantly impact workers' mental health, leading to increased stress, irritability, mood swings, and even depression or anxiety. This affects individual wellbeing but can also create tension in the workplace and strain relationships with colleagues.

Moreover, fatigue can lead to burnout, where individuals feel emotionally exhausted and disconnected from their work. This often results in a lack of motivation, disengagement, and ultimately decreased job satisfaction. Employers seeking further guidance may find our mental health policies and plans useful for supporting affected staff.

Reduced Task Motivation

An individual experiencing fatigue may struggle to stay motivated and focused on various work-related tasks. This can result in reduced productivity, poor-quality work, and increased errors or accidents.

Decreased Alertness and Cognitive Functioning

Fatigue impairs the brain's ability to process information efficiently, affecting decision-making abilities, reaction time, memory retention, and overall cognitive performance. When working with machinery or driving vehicles, a fatigued individual may struggle to make quick and accurate decisions, putting themselves and others at risk.

Poor Psychomotor Coordination

Fatigue can also impair coordination and decision-making abilities. This proves especially dangerous in high-risk jobs such as operating heavy machinery or driving vehicles. A fatigued worker may show slower reaction times and decreased focus, which can lead to accidents and injuries.

Chronic Fatigue Syndrome (CFS)

While occasional tiredness is normal, chronic fatigue persisting over time can indicate a more serious issue. Chronic Fatigue Syndrome (CFS), also known as Myalgic Encephalomyelitis (ME), is a complex and debilitating disorder characterised by extreme exhaustion that cannot be explained by any underlying medical condition. Symptoms worsen after physical activity, like exercise, or mental effort and don't improve with rest or sleep.

CFS can affect individuals of all ages, ethnicities, and backgrounds. Studies suggest between 0.4-1% of the Australian population grapple with CFS, translating to potentially 250,000 people living with this condition.

Fatigue Management Strategies

Given the impacts outlined above, workplaces and individuals must take steps to manage and prevent fatigue before it becomes serious. Here are steps to help address fatigue in the workplace:

1. Comply with Regulatory Requirements

In Australia, several regulatory frameworks govern fatigue management across different industries:

• Heavy Vehicle Transport Industry: Fatigue regulations apply to heavy vehicles subject to fatigue management, such as those with a Gross Vehicle Mass (GVM) exceeding 12t, combinations surpassing 12t GVM, buses intended for more than 12 adults and weighing over 4.5t, and trucks with a GVM over 12t that have additional attachments.
• Aviation Industry: Civil Aviation Order 48.1 Instrument 2019 outlines new fatigue management rules for flight crew in Australia, effective from July 2021. These rules include obligations for flight crew licence holders, air operator certificate holders, and Part 141 certificate holders to manage fatigue risks in their operations.
• Rail Transport Industry: The Office of the National Rail Safety Regulator (ONRSR) has developed a Fatigue Risk Management Guideline to help rail transport operators manage fatigue-related risks associated with rail safety work.

2. Exercise Your WHS Duties

Who has work health and safety (WHS) duties for fatigue risk management in the workplace? According to model WHS laws, workplace participants must manage fatigue-related risks. This includes employers, managers, supervisors, and workers.

Responsibility as a PCBU

As a person conducting a business or undertaking (PCBU), you must prevent fatigue and place effective control measures as part of your work health and safety duty. This includes ensuring workers are not working excessive hours or taking on tasks that could lead to fatigue. You must also provide a safe work environment and ensure policies and procedures are in place to manage fatigue risks. Our Fatigue Management Policy can help formalise these obligations.

Responsibility as a Worker

Workers are also responsible for managing their own fatigue and reporting concerns or hazards that may contribute to it. This includes staying aware of work hours and taking appropriate breaks. Workers must also follow any fatigue management policies or procedures put in place by the PCBU.

3. Prioritise Your Workload

One of the main reasons for experiencing fatigue in the workplace involves an overwhelming workload. Identify tasks and prioritise them based on urgency and importance. Communicate with your supervisor if workload feels too much for one person to handle. Doing so can help find a solution, such as delegating tasks or extending deadlines.

4. Provide Adequate Breaks and Rest Periods

Sitting at a desk all day can be physically and mentally exhausting, increasing fatigue levels. To combat this, take regular breaks throughout the day, even if it's just for a few minutes. Along with allowing time to rest, use these breaks to move around and engage in physical activity.

Additionally, taking full advantage of rest periods outside work remains essential. Ensure you get enough sleep each night and use weekends or days off for relaxation and rejuvenation. Sufficient sleep allows you to return to work feeling refreshed and more productive.

5. Promote a Healthy Work-Life Balance

Offer flexible work arrangements, promote regular exercise, and provide resources for stress management and relaxation. Encourage employees to use vacation time and avoid overworking themselves. A healthy work-life balance can lead to increased job satisfaction, improved mental health, and lower rates of burnout.

6. Offer Employee Support Programs

Employers can support employees struggling with fatigue by offering access to employee assistance programs (EAPs) or other mental and physical health resources. These programs provide confidential support and counselling to help staff cope with stress and improve overall wellbeing.

7. Incorporate Technological Solutions

Employers can also utilise technological solutions to help manage employee fatigue. Options include fatigue monitoring software, wearable devices that track sleep patterns, or scheduling software that helps distribute work evenly among staff.

Such technologies provide valuable insights into an employee's level of alertness and allow adjustments to be made in real time. They also help identify potential problem areas or high-risk tasks requiring additional support or resources. Furthermore, technology aids in creating more flexible work schedules. With the rise of remote work and virtual team collaboration, staff may gain more control over working hours and location.

8. Implement Policies and Procedures

Safety policies and procedures should be implemented to help prevent fatigue-related accidents. This includes:

• Conducting risk assessments and identifying potential hazards in the workplace
• Establishing guidelines for safe working hours and breaks
• Ensuring proper training is provided for all employees on fatigue management techniques
• Encouraging open communication between employees and managers about workload and scheduling concerns
• Setting limits on work hours and mandatory breaks to promote rest and recovery
• Encouraging employees to report any fatigue-related symptoms or concerns
• Implementing a buddy system for tasks that require high levels of alertness
• Reviewing control measures placed

By implementing these policies and procedures, employers create a safer work environment for staff and reduce risk of accidents caused by fatigue. For heavy vehicle operators specifically, our Fatigue Management Policy for Heavy Vehicles addresses sector-specific compliance needs.

Manage Policies and Procedures With SafetyDocs

With fatigue being a significant contributor to workplace incidents, organisations must effectively manage and monitor policies and procedures governing fatigue risk.

SafetyDocs by SafetyCulture offers a comprehensive solution for managing safety policies and procedures, including fatigue management guidelines.

Our library of ready-to-use templates helps organisations easily create and implement policies and procedures related to fatigue management. These templates are fully customisable, allowing organisations to tailor them to their needs and requirements.

Browse our safety documents library and find templates for risk assessments, incident reporting, and fatigue management plans:

• Workplace Fatigue Management Plan
• Workplace Fatigue Risk Assessment Form
• Light Vehicle Driver Fatigue Management Form
• Psychosocial Hazards Policy

Don't let fatigue become a safety hazard in your workplace. Contact us to learn more about our safety document templates and how they can help improve your organisation's safety performance.

Our team of experts is dedicated to providing accurate and informative content. Craig Cruickshank, our senior HSEQ advisor at SafetyDocs by SafetyCulture, has reviewed this blog post to ensure the highest level of quality.

Learn more about Craig's work on LinkedIn for further industry insights.

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Please note that the above information is provided as a comment only and should not be relied on as professional, legal or financial advice.