Efficacy of a Foot Strengthening Protocol on Sport Performance Kinetics

Inclusion criteria : * To be affiliated in the federation of one of the following sports : soccer, handball, rugby, basketball or track and field; * To practice their respective sport more than two times per week; * Be affiliated or beneficiary of a social security insurance; * Having freely given their written consent after having been informed of the purpose, the procedure and the potential risks involved. * Licensed in a tennis club (FFT) and in a volleyball club (FFVolley) Exclusion criteria : * Use of pharmacological therapy to match gander identity; * Have an abnormal range of motion of the toes and/or ankle; * Have any kind of ankle or foot pain (self-defined and self-reported by the FAAM questionnaire) in the previous 6 months; * Have a previous injury or surgery of the lower limb in the previous 6 months; * Have a neurological or vestibular deficit that may affect walking or balance (lumbar-sacral radiculopathy, peripheral nerve pathology, Marfan or Eehlers-Danlos syndrome, etc.); * Have contraindication to neuromuscular electrical stimulation (pacemaker, seizure disorders, pregnancy); * Have a previous foot strengthening experience in the past 6 months for at least 2 weeks and more than one session per week; * Participate at the same time in another medical interventional experiment or have participated in such a study in the 30 days preceding this study; * Being unable to understand the purpose and conditions of the study, and to give consent; * Being deprived o…