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Influence of probe application pressure on in vitro and in vivo capacitance (Corneometer CM 825(®)) and conductance (Skicon 200 EX(®)) measurements.
Skin Res Technol. 2011 Nov; 17(4):445-50.SR

Abstract

BACKGROUND/PURPOSE

The measuring probe of the electrical hydration instruments is equipped with a spring system to ensure a constant pressure of probe application on the skin surface. However, it is possible to trigger the measurement at, respectively, a low and a high force of probe application. It is the purpose of this paper to compare the in vitro and in vivo hydration values of the capacitance and conductance method at, respectively, low and high values of application pressure on the considered surface.

METHODS

In vitro capacitance and conductance hydration measurements were carried out at a low and a high pressure on a calibration filter pad impregnated with different alcohols and in vivo on different skin sites covering a wide range of hydration values.

RESULTS

The in vitro results were pressure dependent and higher hydration values were noticed when the probes were applied with a high pressure compared with a low pressure. In vivo, the pressure effect was a function of the skin type and it was more pronounced for dry skin (40%), lower for normal skin (20%) and the lowest for hydrated skin (5-8%).

CONCLUSION

This study confirms the influence of probe pressure application on the skin surface when carrying out capacitance and conductance hydration measurements.

Authors+Show Affiliations

Department of Human Biometry and Biomechanics, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium. pclarys@vub.ac.beNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Comparative Study
Journal Article

Language

eng

PubMed ID

21338409

Citation

Clarys, Peter, et al. "Influence of Probe Application Pressure On in Vitro and in Vivo Capacitance (Corneometer CM 825(®)) and Conductance (Skicon 200 EX(®)) Measurements." Skin Research and Technology : Official Journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI), vol. 17, no. 4, 2011, pp. 445-50.
Clarys P, Clijsen R, Barel AO. Influence of probe application pressure on in vitro and in vivo capacitance (Corneometer CM 825(®)) and conductance (Skicon 200 EX(®)) measurements. Skin Res Technol. 2011;17(4):445-50.
Clarys, P., Clijsen, R., & Barel, A. O. (2011). Influence of probe application pressure on in vitro and in vivo capacitance (Corneometer CM 825(®)) and conductance (Skicon 200 EX(®)) measurements. Skin Research and Technology : Official Journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI), 17(4), 445-50. https://doi.org/10.1111/j.1600-0846.2011.00516.x
Clarys P, Clijsen R, Barel AO. Influence of Probe Application Pressure On in Vitro and in Vivo Capacitance (Corneometer CM 825(®)) and Conductance (Skicon 200 EX(®)) Measurements. Skin Res Technol. 2011;17(4):445-50. PubMed PMID: 21338409.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of probe application pressure on in vitro and in vivo capacitance (Corneometer CM 825(®)) and conductance (Skicon 200 EX(®)) measurements. AU - Clarys,Peter, AU - Clijsen,Ron, AU - Barel,André O, Y1 - 2011/02/22/ PY - 2011/2/23/entrez PY - 2011/2/23/pubmed PY - 2012/2/9/medline SP - 445 EP - 50 JF - Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) JO - Skin Res Technol VL - 17 IS - 4 N2 - BACKGROUND/PURPOSE: The measuring probe of the electrical hydration instruments is equipped with a spring system to ensure a constant pressure of probe application on the skin surface. However, it is possible to trigger the measurement at, respectively, a low and a high force of probe application. It is the purpose of this paper to compare the in vitro and in vivo hydration values of the capacitance and conductance method at, respectively, low and high values of application pressure on the considered surface. METHODS: In vitro capacitance and conductance hydration measurements were carried out at a low and a high pressure on a calibration filter pad impregnated with different alcohols and in vivo on different skin sites covering a wide range of hydration values. RESULTS: The in vitro results were pressure dependent and higher hydration values were noticed when the probes were applied with a high pressure compared with a low pressure. In vivo, the pressure effect was a function of the skin type and it was more pronounced for dry skin (40%), lower for normal skin (20%) and the lowest for hydrated skin (5-8%). CONCLUSION: This study confirms the influence of probe pressure application on the skin surface when carrying out capacitance and conductance hydration measurements. SN - 1600-0846 UR - https://www.unboundmedicine.com/medline/citation/21338409/Influence_of_probe_application_pressure_on_in_vitro_and_in_vivo_capacitance__Corneometer_CM_825_®___and_conductance__Skicon_200_EX_®___measurements_ L2 - https://doi.org/10.1111/j.1600-0846.2011.00516.x DB - PRIME DP - Unbound Medicine ER -