Hand-arm vibration syndrome is a significant health challenge in Indian construction and mining sectors. Consequently, clinicians frequently analyze Purdue Pegboard test results to assess manual dexterity in workers using power tools. Furthermore, a Swedish study investigated 225 workers with extensive vibration exposure to identify factors influencing these scores. By understanding these variables, practitioners can better stage neurological damage and implement preventive measures.

Factors Affecting Purdue Pegboard Test Results

Older age and neurosensory symptoms appear to be the most consistent predictors of poor performance. For example, workers with numbness or cold-induced blanching scored significantly lower, regardless of total exposure years. Moreover, researchers noted that although vibration duration was not a direct linear predictor, sensorineural impairment was crucial. As a result, Purdue Pegboard test results reflect cumulative functional damage rather than just tool use history.

Effective management requires a holistic approach including both subjective reporting and objective testing. Specifically, clinicians should use these scores alongside assessments like monofilament testing and grip strength. Additionally, because manual dexterity declines naturally with age, clinicians must use age-matched normative data for accurate staging. Therefore, providing timely intervention for younger workers with early symptoms can prevent irreversible functional loss.

Why is the Purdue Pegboard test important for HAVS?

The test provides an objective measure of fine manual dexterity, which is often impaired in hand-arm vibration syndrome. This helps clinicians determine the severity of sensorineural damage more accurately than symptoms alone.

How do neurosensory symptoms affect the scores?

Numbness, tingling, and reduced sensitivity in the fingers directly hinder the ability to manipulate small components quickly. These symptoms lead to lower scores, which correlate with the neurosensory stages of the Stockholm Workshop Scale.

Disclaimer: This content is for informational and educational purposes only. It does not constitute medical advice or establish a doctor-patient relationship. Refer to the latest local and national guidelines for clinical practice.

References

Stjernbrandt A et al. Factors influencing Purdue Pegboard test results among hand-arm vibration-exposed workers. Occup Med (Lond). 2026 Apr 16. doi: undefined. PMID: 41988782.

Heaver C et al. Hand-arm vibration syndrome: a common occupational health hazard in primary care. Br J Gen Pract. 2011 Nov;61(592):e754-63. PMID: 22137145.

Poole CJM et al. The Purdue Pegboard test for surveillance of vibration-exposed workers. Occup Med (Lond). 2025 Dec 30;75. PMID: 39751241.