Variations in the Hemostatic System Induced by a Standardized Walking Test

Inclusion Criteria: * Inclusion criteria common to both groups : * Patients who have given written informed consent. * Patients who are affiliated to or beneficiaries of a social security scheme. Inclusion criteria specific to the Patient Group: * Patients with a personal history of provoked venous thromboembolism, venous thrombosis and/or pulmonary embolism, with the last attack dating back to more than 6 months, and whose clinical phenotype did not justify long-term antithrombotic drug prophylaxis. Definition of provoked venous thromboembolism : The clinical criteria used to classify venous thromboembolism as provoked are : * First year of combined oestrogen-progestogen oral contraception, or contraception using an oestrogen-impregnated vaginal ring or transcutaneous synthetic oestrogen patch. * Hormonal stimulation for oocyte retrieval * Pregnancy and 6 weeks post-partum * Surgery * Trauma * Immobilisation in plaster or splint * Outbreak of acute infectious disease * Acute flare-up of inflammatory disease * Prolonged air travel lasting at least 4 hours * Prolonged strict bed rest lasting at least 3 consecutive days. Inclusion criteria specific to the Control Group: * Subjects with no personal history of venous thromboembolism * Subjects with no family history of venous thromboembolism in first-degree relatives * Subjects of the same sex and age with a tolerance of +/- 5 years in relation to the matched case. Exclusion Criteria: * Patients who are physically unable…