Haemodynamic changes in ipsilateral and contralateral fingers caused by acute exposures to hand transmitted vibration

Griffin, Michael J.
August 1997
Occupational & Environmental Medicine;Aug1997, Vol. 54 Issue 8, p566
Academic Journal
Objectives: To investigate changes in digital circulation during andafter exposure to hand transmitted vibration. By studying two frequencies and two magnitudes of vibration, to investigate the extent to which haemodynamic changes depend on the vibration frequency, the vibration acceleration, and the vibration velocity. Methods: Finger skin temperature (FST), finger blood flow (FBF), and finger systolic pressure were measured in the fingers of both hands in eight healthy men. Indices of digital vasomotor tone such as critical closing pressure and vascular resistance were estimated by pressure-flow curves obtained with different hand heights. With a static load of 10 N, the right hand was exposed for 30 minutes to each of the following root mean squared (rms) acceleration magnitudes and frequencies of vertical vibration: 22 m.s-2 at 31.5 Hz, 22 m.s-2 at 125 Hz, and 87 m.s-2 at 125 Hz. A control condition consisted of exposure to the static load only. The measures of digital circulation and vasomotor tone were taken before exposure to the vibration and the static load, and at 0, 20, 40, and 60 minutes after the end of eachexposure. Results: Exposure to static load caused no significant changes in FST, FBF, or indices of vasomotor tone in either the vibratedright middle finger or the nonvibrated left middle finger. In both fingers, exposure to vibration of 125 Hz and 22 m.s- 2 produced a greater reduction in FBF and a greater increase in vasomotor tone than did vibration of 31.5 Hz and 22 m.s- 2. In the vibrated right finger, exposure to vibration of 125 Hz and 87 m.s-2 provoked an immediate vasodilation which was followed by vasoconstriction during recovery. The non-vibrated left finger showed a significant increase in vasomotor tone throughout the 60 minute periodafter the end of vibration exposure. Conclusions: The digital circulatory response to acute vibration depends upon the magnitude and frequenc


Related Articles

  • Changes over a workshift in aesthesiometric and vibrotactile perception thresholds of workers exposed to intermittent hand transmitted vibration from impact wrenches. Alessandro, Grazia // Occupational & Environmental Medicine;Aug1997, Vol. 54 Issue 8, p577 

    Objectives: To investigate the changes over a workshift in fingertiptactile perception thresholds in users of impact wrenches exposed tointermittent hand transmitted vibration. A further aim was to assessthe relation between acute changes in tactile sensation, sensorineural disorders, and...

  • Prevención de Riesgos Laborales. Las vibraciones y su protección. Manzano Sanz, Felipe // Capital Humano;Nov2010, Vol. 23 Issue 248, p116 

    No abstract available.

  • Hand-to-Arm Vibration.  // Environmental Engineering;Summer2007, Vol. 20 Issue 2, Special section p1 

    The article discusses the application of head-to-arm of vibration-analysis to prevent hazard and health risks in work. Analysis of vibration imparted to the hand and arm is made by a series of measurements and the use of specific weighting curves that represent the vibration transmission...

  • NOISE IN THE INDUSTRY - THREAT FOR HEALTH. IRIMIA, Alin; GĂMAN, George Artur; SIMION, Sorin; CĂLĂMAR, Angela; PUPĂZAN, Daniel // Management Systems in Production Engineering;Jul2015, Vol. 19 Issue 3, p138 

    The success of certain industrial activities bring both benefits and negative effects such as pollution, occupational diseases, exposure of workers and residents of neighboring areas and high risk in case of technological failure. An undesirable effect of industrial activity which may be...

  • LEGAL NEWS ROUND-UP.  // Occupational Health;Mar2013, Vol. 65 Issue 3, p8 

    This section offers legal news briefs related to the British health care sector, which includes the out-of-court settlement received by a JCB worker after he developed dermatitis while working for the firm in Rochester, England and the 686,000 British pounds received by a group of employees at...

  • Ask OH.  // Occupational Health;Apr2015, Vol. 67 Issue 4, p11 

    The article presents questions and answers related to occupational health (OH), namely, the simple and effective way to implement a hand-arm vibration screening (HAVS) process, the recommended proactive strategies in managing the return to work of workers who had hospital operations or absent...

  • LEGAL NEWS ROUND-UP.  // Occupational Health;Aug2015, Vol. 67 Issue 8, p8 

    This section offers news briefs on occupational health-related court cases in Great Britain as of August 2015, including the fine imposed by the Health and Safety Executive (HSE) to a bus and coach builder uncontrolled exposure to hand-arm-transmitted vibration, and the penalty given to Scottish...

  • Vibration-induced multifocal carpal osteonecrosis in a 31-year-old man. Awais, Muhammad; Hafeez, Saima; Rehman, Abdul; Baloch, Noor Ul-Ain // Occupational & Environmental Medicine;Sep2015, Vol. 72 Issue 9, p684 

    No abstract available.

  • LEGAL NEWS ROUND-UP.  // Occupational Health;Jul2011, Vol. 63 Issue 7, p8 

    This section offers legal news briefs on occupational health as of July 29, 2011. The Supreme Court passed a decision that made employers liable for noise-induced deafness among employees caused by low levels of workplace noise. A Health and Safety Executive inspector (HSE) fined the woodworking...


Read the Article


Sign out of this library

Other Topics