Changes in facial signs due to age and their respective weights on the perception of age, on a tired-look or a healthy glow among differently aged Chinese men / Frédéric Flament in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 42, N° 5 (10/2021)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 42, N° 5 (10/2021) . - p. 452-461 Titre : Changes in facial signs due to age and their respective weights on the perception of age, on a tired-look or a healthy glow among differently aged Chinese men Type de document : document électronique Auteurs : Frédéric Flament, Auteur ; A. Abric, Auteur ; D. Amar, Auteur ; C. Ye, Auteur ; C. Caron, Auteur ; C. Nègre, Auteur Année de publication : 2020 Article en page(s) : p. 452-461 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chinois(e)s Dermatologie Hommes Perception de l'âge Signes du visage Index. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : To determine the respective weights of certain facial signs on the assessment of perceived age, tired-look and healthy glow on Chinese men of different ages. - Material and methods : Photographs were taken of the faces of 420 Chinese men of different ages, under standardized conditions. These photographs allowed to focus and define 15 facial signs, which were then graded by 15 experts and dermatologists, using standardized scales provided by a reference Skin Aging Atlas. The facial signs were dispatched into 5 clusters, namely wrinkles/texture, ptosis/sagging, pigmentation disorders, vascular disorders and cheek skin pores. A naïve panel, composed of 80 Chinese women, of similar age range were asked, when viewing full-face photographs, to : (i) attribute on a 0–10 scale their perception of both the tired-look and healthy glow aspects and (ii) estimate the age of the subject. - Results : With the exception of vascular disorders, the severity of all 4 clusters increased with age, although at different rates. The ptosis/sagging or pigmentation disorders showed a rather regular progression. Although perceived ages and real ages were found to be closely correlated, the vast majority of subjects were judged older by 2–10 years. The changes in facial signs (and their related clusters) were significantly correlated with perceived age, with the exceptions of skin spot density and cheek skin pores. Although the aspects of tired-look and healthy glow were logically found to be anti-correlated, tired-look was more statistically associated with perceived age for the five clusters. Signs of eye contour appear to be closely correlated with the perception of a tired-look. - Conclusion : Within facial clinical clusters, wrinkles/texture and ptosis/sagging are major factors in the assessment of perceived age in Chinese men. Tired-look appears to be strongly associated with perceived age. Note de contenu : - MATERIALS AND METHODS : Subjects - Protocol - Pictures acquisitions - Grading the facial skin ageing signs - Appraisal by a native panel - Statistics - RESULTS : Correlation between perceived age (PA) and real age (RA) - Facial signs and real ages - Facial signs and perceived ages - Influence of tired-look and healthy glow on PA - Relationships between the tired-look criterion on the gradings of facial signs and their clusters - Table 1 : Distribution of Chinese men with age cluster - Table 2 : 15 clinical facial signs and their respective photographic scale's ranges for Chinese men - Table 3 : Correlations of facial signs and perceived ages (PA), all ages included - Table 4 : Correlations between tired-look, healthy glow, PA and RA in Chinese men at all ages and under or before their forties - Table 5 : Correlations of facial signs grades with tired-look for all age groups DOI : https://doi.org/10.1111/ics.12649 En ligne : https://drive.google.com/file/d/1iL-fEdmtgXsm9aKHLZuGNiQkaFDsxWuQ/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35410 [article]

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Differences in loading patterns between fast walking and jogging at the same speed in male adults / Ruoyi Li in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)  

[article]  inJOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020) . - 7. p. Titre : Differences in loading patterns between fast walking and jogging at the same speed in male adults Type de document : texte imprimé Auteurs : Ruoyi Li, Auteur ; Hao Liu, Auteur ; Mengyuan Guo, Auteur ; Jitka Badurova, Auteur ; Luming Yang, Auteur ; Haojun Fan, Auteur Année de publication : 2020 Article en page(s) : 7. p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Biomécanique Course à pied Hommes Marche Pied Statistique Transfert de charge Index. décimale : 796.51 Marche Résumé : Fast walking and jogging are two common exercises for people to maintain health in daily life. But the differences in loading patterns of fast walking and jogging are still unclear. The purpose of this study was to compare loading patterns in fast walking and jogging at the same speed, and to identify how differences in foot mechanics influence plantar pressure distribution between the two modes of gait. Totally, 49 healthy males participated in this study. Data of pressure parameters, including maximum force (MF), peak pressure (PP), contact area (CA), force-time integral (FTI), were recorded by Pedar-X insole plantar pressure measurement system in participants’ fast walking and jogging process at 7 km/h. A Load transfer analysis method was used to quantify the plantar load transference from fast walking to jogging. The results showed that MF, PP and CA increased in metatarsal regions and midfoot regions while decreased in toes regions and heel during jogging when compared with fast walking. FTI decreased in all foot regions during jogging compared to fast walking. Under the effects of spring mechanics and the varus of rearfoot during jogging, fast walking and jogging reveal different loading patterns. Compared jogging to fast walking, load transferred as follow : 1) in transverse direction, load transferred from lateral foot to medial foot in metatarsal regions and midfoot regions, 2) in longitudinal direction, load transferred from toes to the metatarsal, and from heel to the metatarsal and midfoot. These results also provide suggestions for footwear designs. Note de contenu : - Participants - Speed selects - Procedure - Statistical analysis - Load transfer analysis method - Table 1 Relative FTI (%) in fast walking and jogging at 7 km/h DOI : https://doi.org/10.1186/s42825-020-00021-4 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-020-00021-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37335 [article]

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Evaluating age-related changes of some facial signs among men of four different ethnic groups / Frédéric Flament in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 40, N° 5 (10/2018)

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 40, N° 5 (10/2018) . - p. 502-515 Titre : Evaluating age-related changes of some facial signs among men of four different ethnic groups Type de document : texte imprimé Auteurs : Frédéric Flament, Auteur ; D. Amar, Auteur ; C. Feltin, Auteur ; Roland Bazin, Auteur Année de publication : 2018 Article en page(s) : p. 502-515 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Groupe ethnique Hommes Vieillissement cutané Index. décimale : 668.5 Parfums et cosmétiques Résumé : - Contexte : Les modifications de quelques signes du visage chez les hommes d'ethnies différentes, en fonction de l’âge, ont été peu étudiées. - Objectif : Illustrer et de quantifier chez 1058 hommes de quatre ethnies différentes (Asiatiques, Afro‐Américains, Caucasiens, Indiens) de différents âges (18–80 ans) les modifications avec l’âge de plusieurs signes cliniques faciaux. - Méthodes : Des photographies digitales (visage de face, 45° et profil) ont été prises dans des conditions d’éclairage standards. Ces photographies ont permis de zoomer sur 15 à 20 différents signes du visage, chez tous les sujets. 15 experts entrainés ont ensuite examiné ces photographies sur écran calibré, en donnant un score à chaque signe à l'aide de quatre Atlas dédiés aux quatre ethnies et au genre. - Résultats : La plupart des signes montrent une intensité croissante et régulière avec l’âge, avec cependant des cinétiques différentes selon le groupe ethnique. Les modifications majeures, chez tous les groupes, concernent surtout des aspects structurels de la peau. La sévérité croissante de certaines rides (front, interoculaires…) peuvent être vues comme spécifiquement ethniques. Les modifications de la pigmentation semblent étroitement liées à la pigmentation constitutive des sujets (phototypes): ainsi, les taches pigmentaires sont confirmées comme spécifiques des sujets Asiatiques. - Conclusion : Les hommes de quatre différentes ethnies présentent, au cours du vieillissement, des modifications spécifiques de certains signes faciaux, d'amplitudes différentes. Note de contenu : - MATERIALS AND METHODS : Subjects - Protocol, pictures and acquisition - Evaluation and grading of facial skin ageing signs - Statistics - RESULTS : Asian men - Caucasian men - Indian men - African-American men - Comparison among different ethnic groups DOI : 10.1111/ics.12492 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31525 [article]

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A new procedure, free from human assessment, that automatically grades some facial skin signs in men from selfie pictures. Application to changes induced by a severe aerial chronic urban pollution / Y. Zhang in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 42, N° 2 (04/2020)  

[article]  inINTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 42, N° 2 (04/2020) . - p. 185-197 Titre : A new procedure, free from human assessment, that automatically grades some facial skin signs in men from selfie pictures. Application to changes induced by a severe aerial chronic urban pollution Type de document : texte imprimé Auteurs : Y. Zhang, Auteur ; R. Jiang, Auteur ; Frédéric Flament, Auteur ; E Elmozino, Auteur ; J. Zhang, Auteur ; C. Ye, Auteur ; D. Amar, Auteur ; Jerome Coquide, Auteur ; S. Dwivedi, Auteur ; L. Sarda-Dutilh, Auteur ; Vincent Arcin, Auteur ; Parham Aarabi, Auteur Année de publication : 2020 Article en page(s) : p. 185-197 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Automatisation Chinois(e)s Dermatologie Etudes cliniques Hommes Intelligence artificielle Peau -- analyse Peau -- Effets de la pollution atmosphérique Pollution -- Effets physiologiques Système de classement Index. décimale : 668.5 Parfums et cosmétiques Résumé : - OBJECTIVE : These were two folds: at first, to develop an automatic grading system specifically dedicated to some facial signs of men, similar to the one previously validated on women of different ethnic ancestry and second, to assess its potential in detecting and grading the possible impacts of a severe aerial urban pollution on some facial signs of Chinese men. - METHODS : In both studies, selfie images were obtained from differently aged men. Nine facial signs were automatically graded through a specific A.I-based algorithm and clinically assessed by a panel of experts and dermatologists. Selfie pictures were taken from individual smartphones of variable optical properties. The first study, designed for developing an automatic grading system, involved three comparable cohorts of men from three different regional ancestries (African, Asian, Caucasian, 110 each) the selfie images of which were acquired under four different lighting conditions. As a second use case study, the facial signs of two cohorts of Chinese men (101 and 100, each), differently aged, regularly exposed to very different aerial urban pollution conditions (UP) were analysed by the same algorithm, selfies being taken under only one lighting condition. - RESULTS : - The new automatic grading system of facial signs suits well to men, showing comparable results than that the one dedicated to women and provides data in close agreement with experts’ assessments. - In both cases (expert’s or automatic methodology), the accuracy of the scores appeared ethnic-dependent. - The applied case confirmed previous results obtained clinically, that is, that many facial signs were found of an increased severity among men exposed to a severe urban pollution, as compared to those living in a less polluted city. - In both studies, statistical agreements between the automatic grading system and expert’s assessments were reached. In some facial signs, the automatic grading system seems offering a slightly better accuracy than the assessments made by the experts. - CONCLUSION : Apart from some minor limitations, this A.I-based automatic grading system, free from human intervention, performed as well as the one previously developed in women, in close agreement with expert’s assessments. In epidemiological studies, this system offers an easy, fast, affordable and confidential approach in the detection and quantification of male facial signs. Note de contenu : - MATERIALS AND METHODS : Subjects and conditions of provacy in the collection of smartphones selfie pictures (Study 1) - Facial signs analysed by automatic grading system (Studies 1 and 2) - Evaluation and grading of facial skinageing signs (Studies 1 and 2) - Principle of development of an automatic detection of facial signs from smartphone photographs (Study A) - Training and evaluation of the robustness of the automatic scoring system (Study 1) - Applied case on clinical impact of aerial urban pollution (UP in Chinese men (Study 2) - Statistics (Studies 1 and 2) - RESULTS : Prediction potential of the automatic scoring system (Study 1) - Assessment of UP clinical impacts in Chinese men by automatic grading system (Study 2) - Answers fromthe questionnaire of Study 2) DOI : https://doi.org/10.1111/ics.12602 En ligne : https://drive.google.com/file/d/1EjjDjnL74zFGn5OriVSfvKaqQN35bOVe/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34509 [article]

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Oily skin under control for all / Julia Comas in SOFW JOURNAL, Vol. 146, N° 9 (09/2020)  

[article]  inSOFW JOURNAL > Vol. 146, N° 9 (09/2020) . - p. 36-38 Titre : Oily skin under control for all Type de document : texte imprimé Auteurs : Julia Comas, Auteur ; Olga Laporta, Auteur ; Elena Cañadas, Auteur ; Albert Soley, Auteur ; Raquel Delgado, Auteur Année de publication : 2020 Article en page(s) : p. 36-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agent mattant Biomolécules actives Biotechnologie Cosmétiques Hommes Hydratation Peau -- Soins et hygiène Produits hydratants Séborrhée Sébum Index. décimale : 668.5 Parfums et cosmétiques Résumé : When dealing with oily skin, finding the suitable cosmetic product and routine can become a hard task. Besides seeking for a mattifying effect able to reduce shininess throughout the day, there is also a general concern to maintain the basic needs of hydration, which is impaired when reducing sebum levels. Therefore, a decrease in sebum content and a maintenance in skin hydration become the perfect combo for such skin types, and this is now possible thanks to Matmarineâ„¢ biotech ingredient, a marine ingredient able to control oily skin in multiethnic volunteers and in both women and men. Note de contenu : - Benefits and negative outcomes of sebum - Controlling sebum secretion through sebocytes - Matmarineâ„¢ biotech ingredient, targeting MC5-R to decrease sebum levels - Reduction in MC5-R protein levels - Decrease in sebocyte differentiation and lipid accumulation - Inhibition of lipid peroxidation - Microarray analysis - Type I collagen induction - Minimized pores and moisturized skin in men - Sebum, shininess and skin pores in caucasian skin - Sebum regulating effect on Asian skin - Mattifying efficacy in a BB cream along the day - Fig. 1 : Images of a volunteer before and after the active treatment - Fig. 2 : Images of skin pores of a volunteer at different times - Fig. 3 : Images of an asian volunteer before and after the treatment En ligne : https://drive.google.com/file/d/1D_gTUczLGjTilY1bdYLTiBFVPMZMzLfx/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34627 [article]

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Recherche en santé au travail : prise en compte du sexe dans les études de toxicologie / Christian Darne in HYGIENE & SECURITE DU TRAVAIL, N° 276 (07-08/2024)  

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The effect of skin surface topography and skin colouration cues on perception of male facial age, health and attractiveness / Bernhard Frink in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 40, N° 2 (04/2018)

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The influence of age, gender and race/ethnicity of the composition of the human axillary microbiome / M. Li in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 41, N° 4 (08/2019)  

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