Table 1

Normal vibration threshold values (5% lower limit) in healthy controls (with the Rydel-Seiffer tuning fork)

For the upper extremitiesFor the lower extremities
Age (y) Values Age (y) Values
⩽40⩾6.5⩽40⩾4.5
41–85⩾6.041–60⩾4.0
>85⩾5.561–85⩾3.5
>85⩾3.0
  • Sites of examination: dorsum of the distal interphalangeal joint of the index finger, the ulnar styloid process, dorsum of the interphalangeal joint of the hallux ,and the internal malleolus.

  • Values are 0–8; the vibration threshold values are presented in rounded numbers.