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Développement d'une nouvelle technologie de cryothérapie Corps Entier

Abstract : This thesis has been completed as part of a CIFRE agreement between the research and development department of the Cryantal Company (Lognes, France) and the C3S (EA4660) and MOVE (EA6314) laboratories from the Universities of Franche-Comté and Poitiers. The aim of the thesis was the development of a new technology of whole-body Cryotherapy (WBC) chamber. The various studies that we conducted centred on : – the identification of technological and methodological requirements from field studies and the analysis of scientific literature; – the development of a WBC chamber prototype according to the identified requirements; – the technological validation of the prototype to its industrialization; and – the evolution of the prototype toward a marketable version. The thesis was divided into two parts. The first part highlights the practical applications and the technological requirements to identify the limits and the advantages of the existing methodologies and technologies in order to develop a new WBC chamber device. Studies performed in the field during competitions showed that WBC is well tolerated by athletes and can be used during heavy competition periods and/or during training periods. We also demonstrated that female athletes with lower body-mass indexes seem to be much more sensitive to cold than female athletes with higher body-mass indexes. The literature review reported a lack of data concerning the actual temperature inside the WBC chamber and cabin. The lack of methodological information for the exposure protocol was also pointed out. It creates the link between the field of application of the WBC and the different technology used. The second part presents the technological development of the new WBC chamber prototype, its validation, and its optimisation in order to be commercialized. This part includes a validation study of the prototype based on the effects of a 3-minute exposure on the skin temperature decrease of exposed individuals. The results showed a similar decrease to those observed with other WBC existing technologies. This is certainly due to the homogeneity of the temperature of exposure and the new technology developed. Preliminary measurements of the prototype allowed for the prospect of the commercialization of this new WBC chamber.
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Romain Bouzigon. Développement d'une nouvelle technologie de cryothérapie Corps Entier. Ingénierie biomédicale. Université de Franche-Comté, 2016. Français. ⟨NNT : 2016BESA2055⟩. ⟨tel-01656733⟩

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