Clinical Research Directory

Inclusion Criteria: 1. Age: Participants aged 18-45 years (young adults) and 60-80 years (older adults). 2. Vision should be within the normal range after visual correction. 3. Lower limb strength requirement: Ability to climb stairs without holding onto anything, able to ascend 15 steps (a typical office building floor has approximately 15-20 steps). 4. No history of falls in the past six months. Exclusion Criteria: Here is the translation of the provided text: 1. Young adult participants: Exclude students from the Department of Physical Therapy, School of Medicine, and Institute of Behavioral Medicine at National Cheng Kung University. 2. Uncontrolled cardiovascular diseases (e.g., hypertensive patients with resting systolic blood pressure exceeding 160 mmHg). 3. Lower limb venous embolism, arterial calcification, and lymphatic issues. 4. Diabetes, sickle cell anemia, coagulation disorders, dialysis patients, and those with conditions affecting walking, lower limb musculoskeletal function, and balance issues. 5. No known psychiatric, neuromuscular, or degenerative neurological diseases. 6. Hearing impairment or those using hearing aids. 7. Dizziness caused by any lesions.