1
|
De Nardi M, Allemano S, Bisio A, Faelli E, La Torre A, Ruggeri P, Codella R. Thermal responses induced by nitrogen and forced convection based partial-body cryostimulation. J Therm Biol 2023; 115:103620. [PMID: 37364442 DOI: 10.1016/j.jtherbio.2023.103620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/12/2023] [Accepted: 06/06/2023] [Indexed: 06/28/2023]
Abstract
Partial Body Cryostimulation (PBC) involves a very cold air flow directed to the body of subjects with minimal clothing. PBC is performed in a rapid timeframe, inside an on-purposed designed cryo-cabin. Recently, cryo-cabins have been built with different energy systems, however a validation study on relative thermal responses is missing. This study was aimed at comparing thermal responses following a PBC in an electrically powered cryo-cabin based on forced convection or into a standard nitrogen-fueled cryo-cabin. In a randomized crossover fashion, thirty-six subjects (F=20; M=16) underwent both cryo-exposures lasting 150 s each. Thermal responses were assessed before and immediately after completing each PBC session. Mixed model analysis of variance revealed a significantly colder temperature after electric PBC in all the body regions (except for the thighs) with respect to a standard nitrogen based PBC (F: 16.4 ± 1.4 vs 18 ± 5.8 °C; M: 16.4 ± 1.7 vs 20.9 ± 4 °C). Moreover, a significant lower thermal discomfort was perceived at the end of electric PBC as compared to that one felt following standard PBC. For the first time, the safety and thermo-effectiveness of an electric cryo-cabin based on forced convection was ensured. This methodology can be viable for practitioners of PBC and clinicians.
Collapse
Affiliation(s)
- Massimo De Nardi
- Department of Experimental Medicine, Università degli Studi di Genova, Genoa, Italy
| | - Silvia Allemano
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Ambra Bisio
- Department of Experimental Medicine, Università degli Studi di Genova, Genoa, Italy; Centro Polifunzionale di Scienze Motorie, Università degli Studi di Genova, Genoa, Italy
| | - Emanuela Faelli
- Department of Experimental Medicine, Università degli Studi di Genova, Genoa, Italy; Centro Polifunzionale di Scienze Motorie, Università degli Studi di Genova, Genoa, Italy
| | - Antonio La Torre
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Piero Ruggeri
- Department of Experimental Medicine, Università degli Studi di Genova, Genoa, Italy; Centro Polifunzionale di Scienze Motorie, Università degli Studi di Genova, Genoa, Italy
| | - Roberto Codella
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Department of Endocrinology, Nutrition and Metabolic Diseases, IRCCS MultiMedica, Milan, Italy.
| |
Collapse
|