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Proper Postures Prevent Knee Injury

ergonomics msdprevention Nov 18, 2021


  The knee is an extremely unique and versatile joint in the body.  Because of this, there are many potential injuries that can arise throughout a range of different postures.  For example, excessive kneeling can lead to bursitis, an inflammation of the tissue that lubricates the knee1.  Ligament sprains and muscle strains can occur with excessive twisting or poor posture in movements with high forces2.  Chronic malalignment of the knee can also lead to patellofemoral pain, tendinitis, and osteoarthritis, which cause pain with knee movements3.  Sudden impacts on the knee can lead to fractures or dislocations depending on the direction of the impact1.  These are only a few of the common injuries that can impact the knee and its surrounding tissues. 


  These knee injuries commonly occur in the workplace, when demands are placed on workers that predispose them to injury.  According to the workplace safety...

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Shoulder Posture and Injury Prevention in the Workplace

ergonomics msdprevention Nov 15, 2021

CRE-MSD (2020) has noted that shoulder injuries have the longest recovery time compared to other body parts.

To prevent injuries of the shoulder it is important to know the correct and incorrect postures of the shoulders. Correct posture of the shoulders is the shoulders square and level, and they are relaxed and pulled back. We also want to know the incorrect postures of the shoulder so that we can avoid these postures, which are the shoulders rounded with the palms of the hands facing forward.

Some ways to minimize the risk of shoulder injuries when working include: 

  • Decrease repetition 
  • Limit overhead reaching  
  • Keep the load close to the body
  • Use both arms to distribute the load evenly 
  • Limit shrugging and rounding of the shoulders 

When reaching for objects we want to avoid horizontal reaches away from the body as much as possible, as this can cause excess strain on the shoulders and lead to injuries. However, if we do need to engage in this...

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Lower Back Pain in the Workplace

ergonomics msdprevention Nov 11, 2021

Lower back Injury

     Injuries of the lower back can be extremely debilitating and are common in many different workplaces.  Although the symptoms of lower back pain across many scenarios may be similar, the causes of low back pain are hard to identify and can be extremely varied.  This is because there are many anatomical structures at risk in the lower back, including nerve roots, muscles, bones, and vertebral discs.1  These structures can be injured through a variety of movements, including heavy lifting, sudden impacts, repetitive bending or twisting, or poor posture in a seated or standing position.1

Lower Back Injury Rates

     Because of the many potential mechanisms of injury, lower back pain is one of the most prevalent workplace injuries.2  According to the Ontario Workplace Safety Insurance Board (WSIB), in 2019, the lower back was the most common site of injury in valid insurance claims, contributing to a...

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Musculoskeletal Disorders and Prevention

ergonomics msdprevention Sep 20, 2021

What are musculoskeletal disorders? 

Musculoskeletal disorders (MSD) are injuries/disorders of muscles, bones, tendons, ligaments, and even nerves. Some well-known MSD are carpal tunnel syndrome, low back pain, tennis elbow, and trigger finger, although there are many more in addition to these.   

The symptoms of MSD are dependent on the type and location of the injury. However, some common symptoms are pain in movement, swelling, reduced range of motion, stiffness, etc.

Some common hazards in the workplace that may cause a worker to develop MSD are,

  • High exertion of force
  • Posture
  • Repetition
  • Vibration
  • Local contact stress
  • Cold temperatures

Over time, these hazards may take a toll on the body and cause injury.


Quick fact: The most affected area regarding MSD is the low back. Some work-related factors that can cause this MSD are lifting with the spine flexed or twisted, repetitive lifting, and sitting or standing on vibrating platforms.


MSD Prevention


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