Acquisition of synchronized cardiovascular signals from non-invasive measurements (ECG, photoplethysmography pulse sensors, inductance plethysmography) in healthy volunteers aged from 18 to 75, during spontaneous ventilation with apneas (20 seconds) for a total acquisition time of 30 minutes.

Inclusion Criteria:

• Men and women between 18 and 75 years of age
• No acute cardiovascular pathologies less than 2 years old,
• No chronic cardiovascular pathologies.
• Stature compatible with the use of the plethysmography T-shirt.
• Person affiliated to a social security scheme or beneficiary of such a scheme
• Signed informed consent form

Exclusion Criteria:

• Persons covered by articles L1121-5 to L1121-8 of the CSP (corresponding to all protected persons: pregnant women, parturients, nursing mothers, persons deprived of their liberty by judicial or administrative decision, persons under psychiatric care under articles L. 3212-1 and L. 3213-1 who are not covered by the provisions of article L. 1121-8, persons admitted to a health or social establishment for purposes other than research, minors, persons under legal protection or unable to express their consent).
• Personnel with a hierarchical link to the principal investigator
• Subjects excluded from another study,

60 healthy volunteers: 3 groups of 20 volunteers per age category (under 30, between 30 and 50, over 50)