Whole-body Vibration Training on the Elderly With Combined Bilateral Knee Osteoarthritis

Inclusion Criteria: * Patients with KOA were graded based on the Kellgren-Lawrence grading criteria (K-L grading) * only grades 3 and 4 will be included in this study * Sarcopenia obesity based on with SMI with SMI \< 7 kg/m2 * PBF ≥ 30% into the SO group * BMI ≥ 28%, or waist circumference ≥ 85 cm in men and ≥ 80 cm in women * able to communicate Exclusion Criteria: * Inability to walk * Knee joint underwent drug treatment or intra-articular injection * Uncontrollable angina pectoris induced by exercise * Uncontrolled hypertension, acute or chronic renal failure, or dyspnea in the resting state * Neurological or respiratory conditions or injuries (ie, dementia, Alzheimer's disease, multiple sclerosis, chronic obstructive pulmonary disease), rheumatoid arthritis and clinical depression.