Fall Frequency and Factors Affecting Dynamic Balance in Patients With Myotonic Dystrophy Type 1

Inclusion Criteria: * Adults aged between 18 and 60 years old * Diagnosis of myotonic dystrophy type 1 * Ability to understand and follow study instructions * Ability to ambulate, with or without an assistive device, sufficiently to perform the study assessments * Willingness to participate and provide written informed consent Exclusion Criteria: * Severe cognitive impairment interfering with understanding or completion of the study assessments * Severe visual impairment interfering with balance and mobility testing * Severe sensory impairment, including markedly impaired vibration sensation, that may affect balance assessment * Any additional neurological, musculoskeletal, vestibular, or other medical condition that could substantially affect gait, balance, or fall risk independently of myotonic dystrophy type 1 * Acute medical condition or unstable clinical status at the time of assessment * Inability to complete the study evaluations