This research aims to establish reference values for the Ankle-Go score, a validated tool for functional assessment of the ankle, in healthy military personnel. The Ankle-Go score, already used in the civilian population after sprains or surgery, combines physical tests and subjective questionnaires to assess functional recovery of the ankle. No normative data currently exist for the military population, whose physical and operational requirements differ significantly from those of the general population. This is an observational, prospective, single-center study conducted at the 39th medical branch in Oberhoffen (5th CMA). It will include 96 active military personnel with healthy ankles, examined during their periodic medical visit. Participants will complete the full Ankle-Go test and fill out the associated questionnaires on the secure anklego.com platform. The data will then be analyzed anonymously to calculate a reference average and explore possible variations according to gender and age. These results will ultimately improve care and fitness-to-duty decisions after ankle injuries in the military. The total duration of the study is estimated at 8 months, including 6 months of data collection and 2 months of analysis.

Inclusion Criteria:

• Active military personnel assigned to the 39th Medical Unit in Oberhoffen (5th CMA).
• Engaged in regular physical activity.
• Ankle considered healthy (no recent history of injury or instability).
• Verbal and written consent obtained.

Exclusion Criteria:

• History of ankle sprain, fracture, or surgery in the last 12 months.
• Musculoskeletal or neurological condition affecting walking or balance.
• Refusal to participate or withdrawal of consent.

Active military personnel in good health and performing operational duties (mainly infantrymen). Participants are recruited during periodic medical examinations at the 39th medical centre in Oberhoffen.