Hand-grip force in lumberjacks: two-year follow-up

Int Arch Occup Environ Health. 1986;58(3):203-8. doi: 10.1007/BF00432102.


Hand-grip force was measured in 63 professional lumberjacks in 1978 and again in 1980. Lumberjacks with vibration-induced white fingers (VWF) had lost 21% of their muscle force during the two years. Lumberjacks with no hand-arm symptoms had lost 5% of their muscle force in the same time period. Lumberjacks with subjectively diminished hand muscle force had a slight increase in muscle force during the follow-up time. These results suggest that long-term exposure to vibration causes a decrease in muscle force.

MeSH terms

  • Adult
  • Fingers / physiopathology
  • Follow-Up Studies
  • Hand* / physiopathology
  • Humans
  • Male
  • Middle Aged
  • Muscle Contraction*
  • Occupational Diseases / physiopathology*
  • Wood*