Ergonomics > Repetitive Stress Injury > Repetitive Strain Injury Types



Repetitive Strain Injury Types

Certain repetitive strain injury types are well known to many people, but they very few people know that they all fall under this type of repetitive strain injury. There are many different types of repetitive strain injuries, and they are a type of injury categorized by an overuse of simple motions.

More often than not, repetitive strain injuries are caused by carrying out the duties of an occupation; making the same movements, repetitively, can lead to strains on particular body parts.

Computer workers and assembly line workers are particularly prone to developing a case of repetitive strain injury. Let's find the information on various types of repetitive strain injury that exist so that you can better tell what types of overuse to avoid in order to maintain a decent level of health.

Carpal Tunnel Syndrome

Carpal tunnel syndrome is one of the most commonly known repetitive strain injury types. A case of carpal tunnel syndrome develops when the median nerve which is located inside of the wrist becomes compressed.

When this occurs, the afflicted individual will experience feelings of numbness and tingling within their wrist, sometimes causing them to awaken in the middle of the night due to the pain. The range of motion of the wrist may also be affected in the afflicted person.

DeQuervain's Syndrome

DeQuervain's syndrome is another type of repetitive stress injury. Also known as washerwoman's sprain, this repetitive strain injury type affects the thumb.

There are two tendons within the body that work to control the movement of the thumb, and when the sheaths that hold these tendons become inflamed, pain and swelling may occur within the thumb. DeQuervain's syndrome suffering people also often experience a lack of ability to grip with the affected thumb.


One of the most common repetitive strain injury types is Tendonitis. It's a problem that can strike in many different body parts. Tendonitis occurs when a tendon within the body becomes inflamed, and tendons are present across the body.

Some of the most commonly affected areas by tendonitis include

  • Elbow
  • Wrists
  • Arms
  • Shoulders
  • Legs
  • Knees
  • Ankles
  • Hips

Many of these forms of tendonitis develop due to participation in sports; for example, many rock climbers develop a case of tendonitis within their fingers, and many basketball players develop tendonitis in the knees due to the amount of jumping that they perform.


Tenosynovitis is a type of repetitive strain injury that is similar to tendonitis in a number of ways. As opposed to an inflammation of the tendon as in tendonitis, those with tenosynovitis develop an inflammation of the sheath that surrounds the tendon.

More often than not, cases of tenosynovitis develop within the fingers, and the syndrome is also known as 'trigger finger'. Those with a case of tenosynovitis may experience limited range of motion within the fingers, and may feel a cracking occurring when they try to straighten the affected fingers.