Tele-exercise Training Program for Long COVID

Inclusion Criteria: * Aged 20-80 years * Diagnosed with long COVID based on the criteria of the World Health Organization * Able to speak and understand Mandarin * Able to ambulate independently * Owns a mobile phone with Internet access * Willing to participate and undergo randomization Exclusion Criteria: * History of arrhythmia * History of mental illness * Pregnancy * Acute or unstable chronic diseases (e.g., recent stroke, ongoing cancer treatment, end-stage renal disease requiring dialysis, or major surgery within the previous 3 months) Comorbid neurological or musculoskeletal conditions (e.g., stroke, Parkinson's disease, or dementia) resulting in moderate-to-severe physical disability