What does TMERT mean?
TMERT refers to work-related musculoskeletal disorders and, in this context, to the Chilean protocol for monitoring their risk factors. Exempt Resolution 1697, published on February 25, 2026, approved its third version. Therefore, any current implementation must verify the version used and the corresponding instructions.
Musculoskeletal disorders can be associated with various exposures. The protocol allows for proactive study, rather than simply responding when an injury occurs. Ergonomics provides the necessary analysis to understand how tasks are performed and what changes can reduce the demands placed on individuals.
What factors should be reviewed
Official information from the Institute for Occupational Safety identifies repetitive upper limb movements, static or awkward postures, handling of loads or people, and whole-body or hand-arm vibrations. The protocol should not be reduced to an outdated list focused solely on upper limb repetitive movements, nor should all these exposures be considered equivalent.
Each factor requires specific information. To understand a task, it may be relevant to observe forces, reach, duration, frequency, recovery, and variability. A snapshot of a posture is insufficient if it obscures the effort required or how long it is held. The assessment must reconstruct the work in sufficient detail to determine which conditions need to be changed.
Initial characterization and identification
The process begins with characterizing positions and tasks and with initial identification according to official instruments. Properly naming a task helps avoid overly broad groupings. Two people with the same position may perform activities with different requirements, while the same exposure may appear in several areas of the organization.
It is advisable to observe at different times and listen to those working there. Peak activity periods, staff replacements, special products, or cleaning can alter the exposure. Documentation should reflect these variations and explain what was evaluated. If an activity is not performed during the visit, it should be noted, and plans should be made for how to obtain information before assuming it is covered.
Stages of assessment and technical competence
The protocol distinguishes between identification and assessment, with initial and advanced stages depending on the results and the risk factor. Choosing a method simply because it is available in an application is not appropriate. Its suitability for the task must be verified, and the established decision-making process must be followed, with professionals possessing the necessary training and expertise.
The administering body provides assistance according to its responsibilities and the size of the entity. To organize this assistance, it is helpful to agree on what information the company should prepare, who will carry out each stage, and what outcome should trigger action. Technical collaboration does not eliminate the obligation to allocate resources, nor does it transform an external report into an already implemented improvement.
Intervention on working conditions
The measures must be related to the identified factors. For repetitive movements, it may be necessary to review the cycle, tools, or task distribution. In load handling, design, aids, space, and organization must be considered. The selection also requires studying the effects of the solution on other risks and on the entire process.
Personal breaks or recommendations can be helpful, but they shouldn’t be used to justify an avoidable requirement. A poorly placed aid might not be used much, even if its purchase is listed as a fixed action. Team involvement allows for verification that the improvement is achievable and compatible with the actual pace and conditions of execution.
Health surveillance and confidentiality
Health surveillance is integrated with environmental assessment and protocol criteria. Its tools and referrals must be managed by the appropriate personnel. Reporting discomfort can signal a need to review work practices, but it does not replace a health assessment nor does it, in itself, determine the occupational origin of an illness.
The company needs to protect individual information and use preventive findings to improve working conditions. It is advisable to distinguish between clinical data and exposure and monitoring records. This separation allows those managing work to access useful information without unnecessarily accessing health records that are not required for their decision-making.
Practical example
In a hypothetical scenario, an order picking line experiences recurring problems during packing. Analysis reveals that the issue is not solely related to weight: reach, working height, frequency, and peak demand periods also play a role. The appropriate identification and evaluation sequence is followed, avoiding the selection of a tool before fully understanding the tasks.
The team tests changes to the layout of materials and the workstation. A subsequent review checks its use across different shifts and order sizes. If a modification shifts effort to another activity, the design is adjusted. This example illustrates why evaluation should focus on verifying work outcomes, in addition to generating a score or report.
Documentation and updates
It is useful to maintain a relationship between position, task, factor, evaluation, measurement, and verification. Documents should allow for identification of which version of the protocol was applied and what conditions were observed. In the event of a process change, the record helps determine which part needs revision and avoids repeating work that remains representative.
Specific deadlines should be consulted in the current version and applicable official instructions, without automatically using schedules from previous implementations. Monitoring requires designated personnel and evidence of effectiveness. Consistent management integrates TMERT into routine prevention so that design and organizational improvements are maintained when production, personnel, or equipment change.
