Repetitive strain injuries and how to prevent them

by Vanessa Christner, Program Manager, Ergonomics & Safety Management Systems, Environmental Health and Safety

At SFU, we refer to RSIs by a broader term, musculoskeletal injuries (MSI). An MSI is an injury caused by the overuse of structures within the musculoskeletal system such as bones, muscles, joints, tendons, ligaments and nerves. Injuries occur when the demands on these systems exceed the capability of the structure, typically through a single forceful movement or repeated use of the same joint.

Within any work environment, employees should be aware of the signs and symptoms of MSI. Early intervention or treatment can result in improved recovery outcomes and reduced time away from work.

Know the signs and symptoms

Some early signs of MSI are redness, heat, swelling and reduced range of motion. Symptoms may include:

• Numbness or tingling
• Burning sensations
• Pain or localized discomfort
• Joint or muscle stiffness
• Weakness
• Tenderness to touch

Certain workplace conditions can stress the body and contribute to the development of an MSI. These are called ergonomic risk factors. Force, awkward or sustained posture, and repetition are the most common risk factors arising from work tasks and workspace design.

How to prevent MSI

• Use supporting equipment to reduce high forces (e.g., carts, lifting devices, adjustable workstations)
• Ensure your workstation is properly set up and incorporate movement throughout the day
• Rotate tasks and take regular microbreaks to reduce repetition and sustained posture
• Report MSI signs, symptoms, or ergonomic risk factors to your supervisor for investigation and implementation of controls

SFU supervisors are encouraged to connect with Environmental Health & Safety (EHS) for support with investigations, hazard assessments, and risk control implementation.

SFU’s Ergonomics Online Training Suite 

Environmental Health & Safety now offers a comprehensive ergonomics training suite designed to support diverse work environments across the university:

• Office Ergonomics (enroll online) – foundational computer workstation setup and self-assessment guidance
• Safe Manual Materials Handling (enroll online) – overview of risk factors and practical strategies to reduce injury risk during lifting, carrying, pushing, and pulling tasks
• Lab Ergonomics (enroll online) – tailored guidance for research and teaching laboratory environments, addressing pipetting, microscopy, biosafety cabinet work, and other lab-specific risk factors. Lab Ergonomics training is conveniently a part of Safety Essentials Training.

Together, these offerings provide targeted support for office-based staff, trades staff and research personnel.

Did you know?

SFU is developing ergonomists of the future. BPK’s Occupational Ergonomics Certificate, led for many years by Anne-Kristina Arnold, has provided specialized training for students in the Active Health and Rehabilitation concentration who wish to pursue careers in occupational ergonomics. Her long-standing leadership has helped shape generations of ergonomics practitioners and strengthen the profession both within and beyond SFU.

Request an assessment through EHS

To request an ergonomics assessment through EHS, visit the EHS Ergonomics webpage for resources, including the Ergonomics Program Manual. 

Contact: ergosafe@sfu.ca