 Freezing of gait, fog, is one of the most debilitating symptoms of Parkinson's disease, PD, characterized by a sudden inability to generate effective stepping. This work proposes a novel method for predicting fog using inertial sensors and wavelet analysis. The proposed method detects alterations in leg coordination prior to FOG, allowing for early interventions to prevent or reduce its occurrence. This article was authored by Tal Krasovsky, Benedetta Heimler, or Corin and others.