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BS ISO 13091-1:2001+A2:2021

BS ISO 13091-1:2001+A2:2021

$167.15

Mechanical vibration. Vibrotactile perception thresholds for the assessment of nerve dysfunction – Methods of measurement at the fingertips

Published By Publication Date Number of Pages
BSI 2021 36
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This part of ISO 13091 specifies

  • methods for measuring vibrotactile perception thresholds (VPTs) at the fingertips,

  • procedures for conducting the measurements, and

  • the reporting of results.

Measurement methods are defined in this part of ISO 13091 for obtaining perception thresholds at the fingertips mediated, separately, by SAI, FAI and FAII mechanoreceptor populations. The methods are designed to be applicable to healthy and diseased persons, and to be suitable for clinical assessment and for screening purposes.

The measurement of temporary shifts in vibrotactile perception threshold, or of thresholds at body sites other than the fingertip, is outside the scope of this part of ISO 13091.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions, symbols and abbreviated terms
3.1 Terms and definitions
12 3.2 Symbols and abbreviated terms
4 Measurement methods
4.1 General
13 4.2 Stimulus
4.2.1 Stimulator
4.2.2 Stimulus waveform
14 4.2.3 Stimulus frequency
15 4.2.4 Intermittent stimulation
4.2.5 Continuous stimulation
16 4.2.6 Unwanted vibration during a measurement
4.2.7 Unwanted sound during a measurement
4.3 Subject comfort and positioning
18 4.4 Conditions for skin surface
4.4.1 Skin and room temperatures
4.4.2 Skin thickness and stimulation
4.5 Stimulating probe
4.5.1 Probe location
4.5.2 Probe tip geometry
4.5.3 Probe surfaces
19 4.6 Skin-stimulator contact
4.6.1 General
4.6.2 Skin-stimulator contact force and skin indentation
20 4.6.3 Method A: Without a surround
4.6.4 Method B: With a surround
4.7 Psychophysical algorithm
21 4.8 Subject’s response
4.8.1 Method for subject’s response
4.8.2 Detection of inconsistent subject responses
4.9 Skin motion
4.10 System check and calibration
22 4.11 Hazards to the subject
5 Preparation and instruction of subjects before vibrotactile testing
5.1 General
5.2 Prior to testing
23 5.3 Instruction of subject about the test procedure
6 Conduct of vibrotactile perception test
6.1 Familiarization
6.2 Measurement of ascending and descending thresholds
24 6.3 Variability of ascending and descending threshold values
25 6.4 Calculation of vibrotactile perception threshold
26 6.5 Measurement of background vibration
6.6 Measurement of skin temperature
7 Reporting of results
28 Annex A (informative) Tests for verifying the performance of apparatus for measuring vibrotactile perception threshold
33 Bibliography

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BS ISO 13091-1:2001+A2:2021
$167.15