Health effects due to vibration exposure

Hand-arm vibration syndrome (HAVS)

Hand-arm vibration syndrome (HAVS) develops from prolonged exposure to repetitive vibration from handheld power tools or vibrating machinery. It primarily affects the peripheral nerves and blood vessels but can also impact the muscles and joints of the hand and arm.

HAVS may manifest with neurological symptoms, vascular symptoms, or a combination of both. Common neurological HAVS symptoms include tingling sensations, “pins and needles”, or a prickling feeling, as well as diminished sensation or sensitivity and weakness in the fingers and hands. Workers affected by HAVS often struggle with impaired fine motor skills and a reduced ability to perform intricate tasks with their hands.

Typical “white fingers” in a patient suffering from hand-arm vibration syndrome (HAVS). ^{© G. Tjalvin}

“White fingers” represent a typical vascular symptom of HAVS and are considered one of its hallmark indicators. This phenomenon involves the fingers turning white or pale. It stems from the constriction of blood vessels in response to vibration exposure, leading to compromised circulation. Detecting these color changes may prove more challenging in individuals with darker skin tones compared to those with lighter skin tones. Additionally, individuals with HAVS commonly experience heightened sensitivity to colder temperatures in their hands and fingers due to impaired circulation.

Health effects due to whole-body vibration

Whole-body vibration is primarily associated with low back pain. However, it’s essential to recognize that back pain can stem from various workplace factors, including manual handling and poor posture. While exposure to vibration can exacerbate discomfort for individuals with existing back issues, it may not be the cause of the problem.