Effect of prior exposure to hand-transmitted vibration on cold response of digital arteries
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To investigate whether prior exposure to hand-transmitted vibration on the day of a cold provocation test affects the cold response of digital arteries.
Each of ten healthy men attended two experimental sessions in which their right hands were exposed for 60 min to either contact force alone (5 N) or a combination of contact force (5 N) and 125-Hz vertical vibration with an acceleration magnitude of 64 m s−2 r.m.s. (unweighted). Finger systolic blood pressure (FSBP) during local cooling to 10°C was measured in the second right finger (exposed hand) and the second left finger (unexposed hand) before exposure and at 30 and 70 min after the end of both exposure conditions.
Analysis of repeated measures of FSBP during local cooling by means of an autoregressive model revealed no significant difference in cold-induced vasoconstriction of the digital arteries between exposure to contact force alone and combined exposure to contact force and vibration. There were no significant changes in the cold response of digital arteries over time in either the right or the left hand after exposure of the right hand to either the contact force alone or the combined contact force and vibration.
The results of this experimental study of the influence of prior vibration exposure on the cold test results suggest that in healthy men recent exposure to contact force and moderate levels of hand-transmitted vibration does not affect the response of finger circulation to cold provocation. These findings may be of practical importance for the definition of test conditions in the field, especially the length of time required between the last occupational exposure to tool vibration and the commencement of objective vascular testing.
KeywordsCold test Finger systolic blood pressure Force Vibration Prior exposure
This research was supported by the European Commission under the Quality of Life and Management of Living Resources programme, project no. QLK4-2002-02650 (VIBRISKS).
- 2.Bovenzi M (1998) Hand-transmitted vibration. In: Stellman JM (ed) Encyclopaedia of occupational health and safety, 4th edn, vol II. ILO, Geneva, pp 50.7–50.12Google Scholar
- 8.Carnicelli MVF, Griffin MJ, Rice CG (1993) Repeatability of finger systolic blood pressure and finger rewarming. In: Dupuis H, Christ E, Sandover J, Taylor W, Okada A (eds) Proceedings of the 6th international conference on hand–arm vibration. Schriftreihe des Hauptverbandes der gewerblichen Berufsgenossenschaften (HVBG), Sankt Augustin, pp 101–109Google Scholar
- 9.Diggle PJ, Heagerty P, Liang K-Y, Zeger SL (2003) Analysis of longitudinal data, 2nd edn. Oxford Statistical Science Series, 25. Oxford University Press, OxfordGoogle Scholar
- 10.Directive 2002/44/EC of the European Parliament and the Council of 25 June 2002 on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (vibration) (sixteenth individual Directive within the meaning of Article 16(1) of Directive 89/391/EEC). Official Journal of the European Communities, L 117/13, 6.7.2002Google Scholar
- 11.Elashoff JD (2002) nQuery Advisor—version 5.0. User’s guide. Los AngelesGoogle Scholar
- 14.Griffin MJ (1990) Handbook of human vibration. Academic Press, LondonGoogle Scholar
- 15.Griffin MJ, Welsh AJL, Bovenzi M (2006) Acute response of finger circulation to force and vibration applied to the palm of the hand. Scand J Work Environ Health (submitted)Google Scholar
- 18.International Organization for Standardization (ISO) (2001) Mechanical vibration. Measurement and evaluation of human exposure to hand-transmitted vibration. Part 1: General requirements. ISO 5349-1. ISO, GenevaGoogle Scholar
- 19.International Organization for Standardization (ISO) (2005) Mechanical vibration and shock. Cold provocation tests for the assessment of peripheral vascular function. Part 2: Measurement and evaluation of finger systolic blood pressure. ISO 14835-2. ISO, GenevaGoogle Scholar
- 22.Olsen N, Hagberg M, Ekenvall L, Futatsuka M, Harrison J, Nasu Y, Welsh C, Yamada S, Yoshida M (1995) Clinical and laboratory diagnostics of vascular symptoms induced by hand–arm vibration. Report from discussions in a working group. In: Gemne G, Brammer AJ, Hagberg M, Lundström R, Nilsson T (eds) Proceedings of the Stockholm workshop 94. Hand–arm vibration syndrome: diagnostics and quantitative relationships to exposure. National Institute of Occupational Health, Solna, Sweden, 25–28 May 1994. Arb Hälsa 5:181–186Google Scholar
- 24.Twisk JWR (2003) Applied longitudinal data analysis for epidemiology. Cambridge University Press, CambridgeGoogle Scholar