Degenerative and traumatic diseases of the musculoskeletal system lead to increased immobility of a patient, which in turn results in muscle atrophy. BFR training is a training method in which a blood pressure cuff partially blocks the arterial blood flow to the exercising limb and completely blocks the venous blood flow. During exercise, an externally induced venous occlusion occurs. This stimulus increases the metabolic stimulus in the occluded extremity - this means that strength can be increased even with low weights, which is why this training is also suitable for people who should not use high training loads due to injuries or operations.

Inclusion Criteria:

• Indication for TKA Surgery
• Ability to perform prehabilitation exercise

Exclusion Criteria:

• Sickle Cell Anemia
• Iatrogenic changes in the vessels of the lower extremities (e.g. stents)
• Open wounds/Infection of the lower extremities