Clinical Research Directory

Inclusion Criteria: * a diagnosis of ASD, or with another diagnosis that includes features of ASD (such as fragile x), * independent in daily activities, * live alone, * have a moderate-high level of functioning. * Ability to understand basic instructions for performing the tests, signing an informed consent form or having a guardian sign an informed consent form Exclusion criteria: * other neurological diseases (e.g., CP, multiple sclerosis), * significant orthopedic injuries to the lower limb in the past year, * previous ankle or Achilles tendon surgeries, * additional diseases that may affect the structure of the Achilles tendon and ankle, * who have not signed an informed consent form or are not interested in participating in the study