Free Walking Exercise in Obstructive Sleep Apnea Patients With Non-alcoholic Fatty Liver

continuous positive airway pressure therapy for a period of 12 weeks, all patients with in this group are required to utilize the CPAP machine for at least 4 hours each night

patients will receive continuous positive airway pressure therapy for a period of 12 weeks, all patients with in this group are required to utilize the CPAP machine for at least 4 hours each night. Also, patients will perform walking exercise for 30 mint, daily for 12 weeks