The management of knee osteoarthritis via a physical activity protocol for rehabilitation has convincing results. However, the effectiveness of these protocols could be improved with a connected instrumented knee brace with an exercise protocol adapted for the patient which is supervise by an online physiotherapist to check the progression during home-based rehabilitation.

The management of knee osteoarthritis via physical activity protocol for rehabilitation has convincing results. The aim of this study is to determine the improvement of the effectiveness of a home-based rehabilitation with and without instrumented knee brace for moderated gonarthrosis patients.

The study will focus during one years on 80 moderated gonarthrosis patients with a Kellgren and Lawrence (K&L) score between 2 and 3, aged between 50 and 80. Each patient will practice an 8 weeks progressive home exercise program with 3 session per weeks. The effectiveness of this protocol will be quantified with a gait analysis with kinematics, kinetics and electromyography, before and after the progressive home exercise protocol. The statistical analysis will focus on ANOVA and correlation between control group and instrumented knee brace group.

Inclusion Criteria:

• Person who signed informative consent
• Affiliated with the social security
• Male and female aged between 50 and 80
• Walk without assistance
• Smartphone's use

Exclusion criteria:

• Person under protective measure
• Orthopedics issues
• Neurologic issues (MMSE Test < 24)
• Knee or hip prothesis
• Person with NSAIDs and analgesics treatment with an effective intake less than 48 hours before the evaluation
• Predominant patello-femoral arthritis
• Symptomatic hip OA
• Knee infection
• Knee injuries