Evaluation of Harmonicity in Running Gait by the Use of Innovative Techniques of Video Analysis

Inclusion Criteria: * at least one year of running practice * minimum two day of running/week * minimum 20 km running/week * seasonal best on half marathon comprised between 1h20' and 2h00' * experienced in treadmill running practice * sport medical certificate Exclusion Criteria: * have suffered in the last three months of musculoskeletal disease * regular practice of sport activities different from running * acute or chronic osteoarticular diseases or, in general, other pathology limiting physical activities * use of drugs altering physical activity performance (hypnotic, psychoactive, non-steroidal anti-inflammatory drugs e.g.).