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    Repetitive movements

    Repetitive movements are a group of continuous and sustained movements performed during work that involve the coordinated action of the muscles, bones, joints, and nerves of a part of the body, generally the upper limbs. These movements are performed cyclically with short work cycles or with similar technical actions that are repeated for a significant portion of the workday. They constitute one of the main ergonomic risk factors and one of the most frequent causes of work-related musculoskeletal disorders, especially in the neck, shoulders, elbows, wrists, and hands, with pathologies such as tendinitis, epicondylitis, and carpal tunnel syndrome, several of which are included in the list of occupational diseases in Royal Decree 1299/2006. The risk depends on the frequency of the actions, the force applied, the postures of the limb, the duration of exposure, the lack of recovery periods, and additional factors such as vibrations, cold, and the required precision. In Spain, Law 31/1995 requires the evaluation of these risks and the adaptation of work to the individual, and the INSST offers evaluation methods, such as the OCRA method included in NTP 629 and in the UNE-EN 1005-5 standard, and design and organization criteria to reduce exposure.

    In short

    A group of continuous and sustained movements performed during work, executed cyclically with short cycles or repetitive technical actions, primarily affecting the upper extremities and causing musculoskeletal disorders (tendinitis, epicondylitis, carpal tunnel syndrome), several of which are included in the list of occupational diseases in Royal Decree 1299/2006. The risk depends on the frequency, force, posture, duration, and recovery time, with additional factors such as vibrations or cold exposure. It is assessed using methods such as OCRA (NTP 629, UNE-EN 1005-5, ISO 11228-3) and prevented through workstation design, tools, organization, breaks, job rotation, training, and health surveillance.

    Content
    1. Risk factors and health effects
    2. Risk assessment
    3. Preventive measures
    4. Organizational application: how to prevent repetitive movements
    5. Limits and common mistakes
    6. Practical example
    7. Regulatory and reference framework
    8. Related concepts
    9. On the blog
    10. References

    A–Z dictionary →

    Risk factors and health effects

    Repetitive work is characterized by short work cycles (usually less than thirty seconds) or by the repetition of the same movements for more than half the cycle, with a high number of technical actions per minute. The damage depends not only on frequency: the force applied (pincer grips, finger pressure, tool use), awkward limb postures (wrist flexion or extension, ulnar or radial deviation, pronation/supination, shoulder elevation), task duration, and the lack of breaks and rotation combine to produce tissue overload. Additional factors such as tool vibrations, cold temperatures, inadequate gloves, localized compression, and precision demands increase the risk.

    The health effects include musculoskeletal disorders of the upper extremities: tendinitis and tenosynovitis of the wrist and hand (including De Quervain’s tenosynovitis), epicondylitis and epitrochleitis of the elbow, rotator cuff tendinitis in the shoulder, carpal tunnel syndrome and other compression neuropathies, and neck pain. Many of these conditions are listed in Group 2 (physical agents) of the list of occupational diseases in Royal Decree 1299/2006 for activities involving repetitive or sustained movements, which reinforces the obligation to prevent them and to report them when they occur.

    The most affected sectors are manufacturing and assembly line work, the agri-food industry (cutting, packaging), cleaning, retail (checkouts), logistics, hairdressing, healthcare and intensive administrative work with keyboard and mouse, although exposure can occur in any activity with short cycles or repeated gestures.

    Risk assessment

    • Identification. Detection of tasks with short cycles, repeated gestures or frequent technical actions, based on observation, complaints and health surveillance data.
    • OCRA method . The OCRA index (NTP 629 and ISO 11228-3 / UNE-EN 1005-5) compares the number of technical actions performed with the recommended number according to force, posture, repetitiveness, recovery and additional factors; the OCRA checklist allows for pre-screening.
    • Other methods. RULA and REBA for posture, Strain Index for wrist and hand, and specific methods for working with screens.
    • Duration and organization. Analysis of the net duration of the repetitive task, the breaks and the actual rotations.
    • Individual factors. Consideration of particularly sensitive individuals and anthropometric variability.
    • Participation. Consult with the exposed persons and their representatives about the actual requirements of the task.
    • Record. Documentation of the evaluation and review in response to changes in the task, incidents or damages detected.

    Preventive measures

    • Elimination or automation. Mechanize or automate the most repetitive operations whenever possible.
    • Workstation design. Appropriate heights and reach, forearm supports, tools with ergonomic handles and low weight, reduction of the force required and of forced wrist and shoulder postures.
    • Organization. Rotation between tasks of varying demands, lengthening and enrichment of cycles, frequent and distributed breaks, work pace not imposed by the machine, and adaptation periods after absences.
    • Tools and equipment. Selection of tools with low vibration and force levels, proper maintenance, and gloves that do not increase grip strength.
    • Environmental conditions. Control of cold and vibrations.
    • Training. Work techniques, use of tools, importance of breaks and early detection of symptoms.
    • Health surveillance. Specific health surveillance protocols for repetitive movements and early detection of musculoskeletal disorders.

    Organizational application: how to prevent repetitive movements

    1. Identify tasks with short cycles or repetitive gestures and positions with complaints or damage to the upper limbs.
    2. Assess the risk using a recognized method (OCRA checklist for screening and OCRA index for detail), considering force, posture, frequency, duration, recovery, and additional factors.
    3. Prioritize technical measures: automation of critical operations, job redesign, ergonomic tools, and force reduction.
    4. Redesign the organization: planned rotation between tasks of different demands, lengthening of cycles, distributed breaks and non-imposed pace.
    5. Train exposed individuals and managers in work techniques, breaks, and early detection of symptoms.
    6. Apply specific health surveillance protocols and manage adaptations and return to work.
    7. Re-evaluate after measures are taken and in response to process changes, and monitor damage and absence indicators.

    Preventive management software allows you to record assessments by position and task, plan measures and rotations, relate the results to health surveillance and reported damages, and maintain traceability of the reviews.

    Limits and common mistakes

    1. Evaluate only the frequency without considering the force, posture, duration, and recovery.
    2. Relying on rotations that in practice are not fulfilled or that alternate tasks with the same level of demand.
    3. Replace design and organizational measures with training in work techniques or stretching exercises.
    4. Ignore additional factors (vibrations, cold, gloves, precision).
    5. Failure to apply health surveillance protocols or to report occupational diseases.
    6. Do not reassess after changes in product, process, or pace.

    The evaluation criteria are detailed in NTP 629 and in the cited technical standards; this sheet is for informational purposes.

    Practical example

    Situation: an agri-food packaging plant with 120 people on handling lines registers several cases of wrist tendinitis and one occupational disease reported for epicondylitis.

    • Evaluation. The prevention service applies the OCRA checklist to all line tasks and the OCRA index to those with the highest scores: two container closing positions present a high risk due to high frequency, grip strength and wrist deviation, with insufficient breaks.
    • Technical measures. A semi-automatic closing device is installed at critical stations, working heights are redesigned, and tools are replaced with others that require less force and have a better grip.
    • Organization. A real rotation is implemented every hour between tasks of varying demands, with distributed recovery breaks, and the pace of the line is adjusted.
    • Follow-up. Staff and management are trained, the specific health surveillance protocol is applied and, after re-evaluation, the OCRA index drops to acceptable levels; new cases decrease in the following year.

    Regulatory and reference framework

    The UNE-EN 1005-5 and ISO 11228-3 standards establish the technical criteria for evaluating the handling of light loads at high frequency, and the specific health surveillance protocols of the Ministry of Health cover repetitive movements.

    Related concepts

    On the blog

    References

    1. Official State Gazette. Law 31/1995, of November 8, on Occupational Risk Prevention. 1995, current consolidated text. Official source
    2. Official State Gazette. Royal Decree 39/1997, of January 17, approving the Regulation of Prevention Services. 1997, current consolidated text. Official source
    3. Official State Gazette. Royal Decree 1299/2006, of November 10, approving the schedule of occupational diseases in the Social Security system and establishing criteria for their notification and registration. 2006, current consolidated text. Official source
    4. National Institute for Occupational Safety and Health. NTP 629: Repetitive movements: evaluation methods. OCRA method: update. 2003. Official source
    5. National Institute for Occupational Safety and Health. Ergonomic risks: musculoskeletal disorders. Thematic portal. Official source
    6. National Institute for Occupational Safety and Health. 2020-2022 Healthy Workplaces Campaign: Let’s Lighten the Load. Official Source

    Editorial information

    Publication date: August 30, 2026 .

    Editorial Manager: Sabentis Editorial Team .

    Editorial review by Pablo Rodríguez LinkedIn

    Executive Vice President of the ORP International Foundation and Chief Financial Officer of Sabentis.

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