The objective of the study is to evaluate the effect of wearing bilateral proprioceptive knee braces on the endurance of subjects aged 60 to 80 years.

Sporting activity has proven health benefits, particularly for older adults, whose balance and neuromuscular functions decline with age.

On the other hand, physical activity in the elderly population may be hampered by inadequate physical condition, muscle or proprioceptive deficits, or fear of falling or injuring. A proprioceptive knee brace could therefore make physical activity safer and thus improve performance, balance, and ultimately the quality of life of the participants.

The objective of the study is to evaluate the effect of wearing bilateral proprioceptive knee braces on the endurance of subjects aged 60 to 80 years.

Inclusion Criteria:

• Subject practicing recreational soccer
• Subject included in the LIBM (inter-university laboratory of motor biology) study: "Effect of recreational soccer practice in persons aged 60 to 80 years"
• Patient whose knee measurements are compatible with the knee brace sizes
• Patient who has signed a free and informed consent form
• Patient affiliated or entitled to a social security plan

Exclusion Criteria:

• Patients with any of the contraindications to the use of the knee brace, as indicated in the instructions for use
• Patient with a major cognitive impairment incompatible with participation in a clinical trial
• Patient participating in another clinical investigation conducted to establish the conformity of a device impacting the judgment criteria
• Vulnerable patient according to article L1121-6 of the public health code, person subject to a legal protection measure or unable to consent freely

the clinical trial is carried out in open label