Question

Write a discussion post that identifies three conditions that lead to cumulative trauma disorder (CTD). Describe an example of each condition. Please note that the condition is a general term and the example is a specific instance of the condition in action.

Answer 1

Answer: A cumulative trauma disorder, also known as CTD, is defined as the excessive wear and tear on tendons, muscles and sensitive nerve tissue caused by continuous use over an extended period of time. CTDs can develop from improper work positioning, repetition or force.

There are five main risk factors that can contribute to the development of a
CTD:
1. Position - When working with the wrists approximately straight, elbows at
about 90°, shoulders relaxed and the spine kept in its natural “S” curve,
the strain placed on muscles, tendons, discs and ligaments is minimized.
2. Force - The more force required to perform a particular task, or the longer
that force must be applied, the greater the risk of developing a CTD.
3. Repetition - Tasks that use the same muscles and tendons over and
over, require more muscle effort and allow less recovery time. Often jobs
that require high repetition rates can lead to fatigue and injury.
4. Vibration - The use of vibrating or impact tools or equipment for hours at
a time can stress the hands and arms, the lower back and the neck.
5. Lifting - Unassisted, frequent or heavy lifting, especially when performed
improperly, can stretch the ligaments of the back and cause the vertebrae
to become misaligned.

Examples:

• Lower Back Pain
• Carpal Tunnel Syndrome
• Awkward posture and position such as bent wrists, elbows held away from the body, outstretched arms or slumped shoulders