Discomfort Threshold Evaluation for Hand and Elbow Regions

A Basis for Hand-Held Device Design

Conference paper (2021)

Authors

Liliana Di Brigida University of Salerno

Iolanda Fiorillo University of Salerno

Alessandro Naddeo University of Salerno

P. Vink Materials and Manufacturing -

Research Group

Materials and Manufacturing () (TU Delft)

DOI: https://doi.org/10.1007/978-3-030-79760-7_77

Pressure Discomfort Human centred design Localized contact Upper limbs

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Published Date

2021

Language

English

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Faculty

Industrial Design Engineering

Department

Sustainable Design Engineering

Research Group

Materials and Manufacturing

Abstract

This study aimed to analyse the discomfort threshold (that could be linked to sensitivity or sensation) of different regions in hand and elbow to support hand-held devices' design. Indeed, there are no studies regarding the hand and elbow discomfort threshold or sensitivity. To overcome these literature gaps, the discomfort threshold of hand and elbow were recorded at 24 spots by pushing a cylinder with a diameter of 10 mm until the participants reported not to be longer comfortable. Experiments were performed with 24 participants, 13 females and 11 males. The results showed the map of discomfort threshold (or sensitivity) for the hand and elbow. The olecranon, situated at the ulna's upper (proximal) end, one of the two bones in the forearm, could withstand more pressure than the elbow area surrounding it. The fingertips and the area close to the metacarpals were most sensitive (lower discomfort threshold).

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