Short-term Changes in Postural Sway, Gait, and fNIRS-derived Cortical Metrics After a 4-week AI-assisted Exercise Program: a Single-arm Pre-post Study

This single-arm pre-post study will enroll 50 participants aged 52-65 years who will undergo a 4-week AI-assisted exercise intervention. Postural balance, functional near-infrared spectroscopy (fNIRS), and three-dimensional motion capture data will be assessed before and after the intervention under different task conditions. During the dual-task condition, the correct response rate (CRR) during serial subtraction of 7 will be recorded. Adverse events occurring during the intervention will also be monitored and recorded.

Inclusion Criteria: * Age 52-70 years, regardless of sex. * Able to walk independently for at least 10 meters without any assistive device. * Normal or corrected-to-normal vision and normal hearing, with the ability to understand and complete all study procedures as instructed. * Willing to participate in the study and provide written informed consent. Exclusion Criteria: * Severe musculoskeletal, neurological, cardiopulmonary, or psychiatric diseases or a history of such conditions. * Severe cognitive impairment. * A history of drug or substance abuse within the past 3 months. * Any other condition that may affect participation in or the assessment of the study.