Lyme borreliosis, commonly known as Lyme disease, has been clinically described for more than a century, but has been officially recognized for 40 years, with the detection of the Borrelia bacterium by W. Burgdorfer, in ticks of the Ixodes ricinus complex, identified a few years before.

Apart from the early localized presentation, with a well established treatment, Lyme borreliosis is a complex infection. Indeed, its presentation can be late and very polymorphic, which can evoke functional somatic disorders and make its management difficult. In 2016, the French Ministry of Health decided to launch a national plan to fight Lyme borreliosis. One of the objectives of this national plan was to improve management based on a specific multidisciplinary care pathway.

Inclusion Criteria:

• Patient referred to the reference center for tick-borne diseases by his attending physician
• Duration of symptoms >6 months
• At the end of the initial assessment, the diagnosis of functional somatic disorders is retained after consensus between the physicians
• Patient practicing less than 150 minutes of regular physical activity per week (WHO recommendations)

Exclusion Criteria:

• Patients with cardiac or respiratory pathologies that contraindicate the practice of physical activity physical activity
• Important comorbidities contraindicating the practice of physical activity: associated cardiac pathologies associated cardiac pathologies (severe rhythm disorders such as rapid atrial fibrillation), respiratory pathologies respiratory pathologies (obstructive or severe restrictive respiratory insufficiency), disabling joint pathologies joint pathologies (gonarthrosis or coxarthrosis limiting training on a treadmill or on a high-intensity bicycle). intensity cycling).
• Patients under guardianship or curatorship