Effects of Corporal Visualisation Program of the Static and Dynamic Balance After an Operation of the LCA

The Effects of Mental Imagery on Postural Control Following Anterior Cruciate Ligament Plasty - a Pilot Study of Feasibility

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.

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.

Inclusion Criteria:

• men and women of legal age
• to be capable of discernment
• to have a telephone number or email address to communicate with the investigators, to have a device with internet access to access the mental imagery programs.
• to have had an ACL surgery performed by the Doctor Siegrist within the last three days using the Hamstrings Tendon Graft or the Kenneth Jones method.

Exclusion Criteria:

• not having a good spoken knowledge of the French language
• recurrence of ACL injury in the same knee
• meniscal sutures
• associated fractures
• pre-existing balance problems (tested at recruitment)
• pre-existing neurological problems diagnosed by a doctor.