This randomised parallel-group study assesses the efficacy, safety and tolerability of Pulsed electromagnetic fields (PEMF) on the muscle mass and strength in PCa patients treated with ADT.Treatment will be delivered using the BIXEPS system (QuantumTX, Singapore). During each treatment, the subject's quadriceps (thigh) region will be put into the machine and treated for 10 minutes for each lower limbs. The whole treatment consists of 1 therapy session per week for 12 weeks. The two lower limbs will be treated alternatively during the treatment. A set of assessments, including body composition assessment, muscle function assessment, questionnaire assessment, and blood and urine for inflammation and cytokines measurement, will be performed at baseline before the start of the first treatment, week 5 and week 12.