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What is Hand-Arm Vibration (HAV)?

Posted on August 30, 2024

Hand-Arm Vibration (HAV) refers to the vibration that is transmitted from work processes into workers’ hands and arms. It is commonly associated with the excessive use of hand-held power tools such as drills, grinders, and chainsaws etc, as well as hand-guided equipment like lawnmowers or a hand guided vibratory roller.

Health Risks Associated with HAV

Prolonged and repeated exposure to HAV can lead to serious health issues, collectively known as Hand-Arm Vibration Syndrome (HAVS). Key health risks include:

  1. Vibration White Finger (VWF): A condition that affects blood circulation in the fingers and can cause whitening, tingling, and loss of sensation.
  2. Carpal Tunnel Syndrome: A nerve disorder causing pain, numbness, and tingling in the hands and fingers.
  3. Musculoskeletal Disorders: Joint and muscle pain, as well as reduced grip strength, affecting overall hand function.

Recognising Symptoms of HAVS

Early recognition of HAVS symptoms is critical. Workers should report the following signs immediately:

  • Tingling and numbness in the fingers
  • Loss of strength in the hands
  • Whitening of one or more fingers when exposed to cold
  • Reduced ability to feel and handle objects

How can we measure HAVs for employers and workers

  1. Firstly, we can undertake risk assessment. By conducting risk assessments, we are able to identify tools and processes that pose a higher HAV risks.
  2. Secondly, we are able to look at workers tool selection and whether there are other options. If you are using low-vibration tools, ensure they are well-maintained. Other options are anti-vibration gloves and other protective gear.
  3. Next, having a work schedule management system in place, helps relieve workers from doing too much work with power tools. Also, implementing job rotation and limit exposure time to high-vibration tools. Provide adequate breaks to minimise continuous vibration exposure.
  4. Finally, training and awareness is a key element when it comes to HAVs. By educating workers about the risks of HAV and proper tool-handling techniques encourages them to report of symptoms early.

 Employers’ Legal Responsibilities

Employers have a legal obligation to protect workers from HAV risks. This includes:

  • Firstly, employers are to providing information and training to ensure workers understand HAV risks and know how to mitigate them.
  • Next, employers should ensure that health surveillance is regularly monitored and detect early signs of HAVS in workers’ health.
  • Finally, it’s important to implement control measures by following the hierarchy of controls to reduce vibration exposure, including engineering controls, administrative controls, and personal protective equipment (PPE).

Assistance with HAV

If you require support or assistance, please contact Courtley H&S on 0151 545 0497.  Our friendly experts are here to help.  For non-urgent advice or support, please email [email protected].

We also offer a 1/2-day Courtley Certified Hand Arm Vibration (HAV) training course which is free to Members.  Click the link for more info or contact [email protected] to discuss arranging a course.

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