Muscular Synergies and Behavioral Adaptations of Gait in Pain Anticipation (SYAMAPP)

Participants receive application of a neutral cream (MEDICAFARM) with verbal and behavioral suggestions that it may cause localized pain. Researchers wear gloves during application and emphasize potential discomfort, stating effects may intensify with movement.

Participants receive identical application of the neutral cream but are informed it is inert and harmless. Researchers apply the cream without gloves and provide neutral instructions.

"Participants undergo assessment procedures including:~* Pre- and post-application gait analysis (GAITRite mat, Zebris treadmill)~* Physiological monitoring (EMG, HRV, EDA)~* Identical questionnaires (BPI, TSK, FACS, PCS, VAS)"