Non contact method for in vivo assessment of skin mechanical properties for assessing effect of ageing
- Resource Type
- Authors
- Hassan Zahouani; Gaetan Boyer; Jérôme Molimard; M. Pericoi; C. Pailler Mattei; S. Laquieze
- Source
- Medical Engineering and Physics
Medical Engineering and Physics, Elsevier, 2012, 34 (2), pp.172-178. ⟨10.1016/j.medengphy.2011.07.007⟩
- Subject
- Ageing effect
medicine.medical_specialty
Aging
Materials science
Mechanical Phenomena
0206 medical engineering
Biomedical Engineering
Biophysics
Modulus
Skin bio-mechanical properties
02 engineering and technology
Stress (mechanics)
030207 dermatology & venereal diseases
03 medical and health sciences
Young Adult
0302 clinical medicine
In vivo
Indentation
Elastic Modulus
Materials Testing
medicine
Humans
Contact method
[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering
[PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph]
Elastic modulus
Skin
[SPI.MECA.BIOM]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Biomechanics [physics.med-ph]
Air flow
Mechanical behaviour
Middle Aged
020601 biomedical engineering
Surgery
Biomechanical Phenomena
Non contact device
Ageing
Female
Biomedical engineering
- Language
- English
- ISSN
- 1350-4533
International audience; The assessment of human tissue properties by objective and quantitative devices is very important to improve the understanding of its mechanical behaviour. The aim of this paper is to present a non contact method to measure the mechanical properties of human skin in vivo. A complete non contact device using an air flow system has been developed. Validation and assessment of the method have been performed on inert visco-elastic material. An in vivo study on the forearm of two groups of healthy women aged of 23.2 ± 1.6 and 60.4 ± 2.4 has been performed. Main parameters assessed are presented and a first interpretation to evaluate the reduced Young's modulus is proposed. Significant differences between the main parameters of the curve are shown with ageing. As tests were performed with different loads, the influence of the stress is also observed. We found a reduced Young's modulus with an air flow force of 10 mN of 14.38 ± 3.61 kPa for the youngest group and 6.20 ± 1.45 kPa for the oldest group. These values agree with other studies using classical or dynamic indentation. Non contact test using the developed device gives convincing results.