Primary and secondary outcomes will be measured twice at the hospital, a first time six weeks after the beginning of the intervention and a second time eight weeks after the four weeks of the intervention.~Twelves home-based motor imagery sessions will occur in four weeks, three times a week, to activate. The training sessions will last between 15 and 20 minutes. During each training session, the participant will note on his/her own Tracking sheet how long they listened to the audio and their comments. The Tracking sheet will document whether or not the patient has participated in each of the twelve sessions.~In parallel, a control group will follow a placebo programme according to the same formalities.~Twenty-three participants (min.) will take part in this study.
The aim of this pilot study is to assess the feasibility of a RCT whose topic would be the effect of a motor imagery program on the postural control in persons who have undergone ACL plasty.