Effectiveness and safety of a thermal insulating coverage on the top of the cryo-cabin during a partial-body cryostimulation
2021
De Nardi, Massimo | Silvani, Sara | Facheris, Carlo | Pagnoncelli, Martina | Bisio, Ambra | Faelli, Emanuela | La Torre, Antonio | Ruggeri, Piero | Codella, Roberto
Partial Body Cryostimulation (PBC) consists of exposing minimally dressed participants to very cold air, in a specially designed cabin (cryo-cabin), for a short period of time. In recent years, cryo-cabins have been launched with a coverage to limit thermo-dispersion, however a validation study is lacking. The aim of this study was to compare thermal responses after a PBC protocol in an open cryo-cabin or into a cryo-cabin closed at the top with a polyurethane-made lid. Eighteen young male adults completed the two 150 s PBC sessions in a cross-over fashion. Temperature of the inner cabin and thermal responses were measured prior and 1, 5, 10, 20 min after completing each PBC session. When covered, cryo-cabins maintained a lower temperature in the front with respect to the back. There was a significant interaction regarding coverage*time*position with a main effect of coverage. Body surfaces were significantly colder under covered condition compared to open PBC. Subjects perceived a greater thermal discomfort during a covered PBC rather than during an open condition. For the first time, the use of a coverage placed on the top of the cabin was demonstrated to maintain lower temperatures of the inner environment and the users’ skin with respect to a standard PBC. This evidence indicates that practitioners and clinicians making use of PBC can successfully and safely cover cryo-cabins with an insulating lid so to improve the effectiveness of their treatments.
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