Highley K R, Coomey M, DenBeste M, Wolfram L J
J Invest Dermatol. 1977 Sep;69(3):303-5. doi: 10.1111/1523-1747.ep12507530.
To gain a more fundamental understanding of the frictional properties of skin, various parameters (hydration, oils, surfactants, etc) affecting skin friction were evaluated using a rotational friction technique. The rotational device utilized a motor-driven wheel. The wheel and drive shaft were connected to the motor through a flexible rubber coupling in such a way that friction encountered by the wheel caused a lateral displacement of the drive shaft which was monitored by a photocell and recorded on a strip-chart recorder.
