Cumulative Physical Strain Defies Traditional Near Miss Safety Tracking

Musculoskeletal disorders develop quietly through repetitive daily tasks, requiring operations managers to monitor subtle worker workarounds rather than sudden acute events.

• By Carrie Taylor
• Jun 16, 2026

Safety professionals are trained to pay attention to near misses….a worker slips but doesn’t fall, a forklift narrowly avoids a pedestrian or a suspended load swings unexpectedly but does not hit anyone. Identifying these events reveals hazards before someone is seriously injured. Workers have learned to report a puddle on a path, or a close call.

The concept of a near miss works well for acute hazards because the sequence of events is clear. Something visible happens, the potential outcome is obvious and workers recognize that the situation could easily have been worse. The event itself becomes the warning sign.

But ergonomics does not follow this trend.

A worker rarely recognizes a moment when a tendinitis, low back pain or carpal tunnel syndrome are narrowly avoided. Musculoskeletal disorders (MSDs) emerge through repeated exposure rather than through a single observable event. By the time symptoms are serious enough to report, the underlying exposure has existed for months or even years.

This difference matters because MSDs remain one of the most common workplace injury categories across North America. MSDs represent approximately one-third of all worker injury and illness cases requiring days away from work. Despite this prevalence, many organizations still rely heavily on safety systems designed around sudden events rather than cumulative exposure.

MSD hazards are exposure-based rather than event-based. A worker may spend months performing forceful exertions, repetitive tasks, awkward reaches or prolonged static postures before reporting symptoms. In most cases, there is no dramatic incident to investigate and no obvious moment where an injury could have been averted.

The human body adapts remarkably well to physical stress, at least initially. Workers often continue performing demanding tasks despite discomfort, stiffness, numbness or fatigue; they expect their bodies to adapt. Mild symptoms become normalized. Employees quietly adjust how they perform tasks, avoid certain movements, or accept discomfort as “part of the job”,  rather than as an early sign of injury.

Research has repeatedly shown that MSDs are strongly associated with cumulative exposure to force, repetition, awkward posture, insufficient recovery and psychosocial stressors such as high workload and low job control. However, unlike acute safety incidents, these exposures are embedded in normal production activities. The risk develops quietly while the work continues successfully. Production targets are met. Quality standards are met.

Every heavy, awkward lift, prolonged pinch grip and repetitive overhead reach contributes incrementally to tissue fatigue and overload. The injury process may already be underway long before anyone identifies it.

And this is why MSD hazards are underreported. Workers hesitate to mention discomfort because symptoms fluctuate, they do not want to appear incapable or they assume nothing will change. Supervisors focus on production continuity because no incidents have been reported. Organizations interpret low injury numbers as evidence that risk is controlled, even when substantial exposure remains present.

In the United States, overexertion, repetitive motion and other bodily reaction exposures accounted for approximately 946,000 cases involving days away from work, job restriction or transfer during 2023-2024, making them the largest category of nonfatal workplace injury events. These injuries develop gradually through cumulative physical exposure rather than through a single dramatic incident, reinforcing the importance of identifying MSD risk before symptoms become severe enough to report.

If organizations want to identify MSD risk earlier, they may need to rethink what qualifies as meaningful warning data. In ergonomics, the most important indicators are often subtle operational patterns rather than isolated events:

• recurring discomfort reports
• difficulty meeting production or quality targets
• increasing fatigue complaints
• rising overtime demands
• workstation workarounds
• task avoidance behaviours
• employees modifying tools and techniques on their own

The signs are easy to dismiss because they don’t resemble conventional safety incidents. Yet they can allow a much earlier indication of risk than waiting for a recordable injury to occur.

Organizations that want to reduce MSD risk shouldn’t wait for recordable injuries to reveal a problem. Safety and operational leaders should begin treating recurring discomfort, fatigue complaints, workstation modifications and task workarounds as meaningful exposure indicators. If it’s hard to find people who want to do a job, it’s probably a high MSD job. Integrate MSD risk monitoring into everyday operational decision-making before cumulative strains becomes lost-time injuries.