Interest of Walking Sticks to Increase Walking Activity of People With Sagittal Imbalance of Spine

Inclusion Criteria: * Adult ≥ 50 years * VAS (Sagittal Vertical Axis, C7-S1, EoS (clinical follow-up)) \> 5cm * Able to do transfers alone * Able to walk 10 minutes or 400 meters in a row * Self-reported Walking difficulties * Person living at home * Person willing and consenting to participate in the study * Health insurance Exclusion Criteria: * Current use of walking sticks * Advanced and symptomatic osteoarthritis of the lower limbs * Static disorder of the fixed spine * Introduction of a straightening brace in the 3 months preceding the start of the study * Static disorder explained by infectious, tumoral, congenital or neurodegenerative pathologies * Uncompensated lower-limb length inequality (\> 2cm) * Lower limb motor deficit * Upper limb pathology preventing cane use * Proprioceptive or vestibular pathology * Inability to write, speak or read French * Cognitive and/or behavioral disorders * Participation in other research on spinal balance and/or gait, or that could influence these factors during the study period * People under tutorship or curatorship * Free state medical assistance