An exemplary method treating a chronic low back pain condition in a patient includes 1) generating, by an electroacupuncture device implanted beneath a skin surface of the patient, stimulation sessions at a duty cycle that is less than 0.05, and 2) applying, by the electroacupuncture device in accordance with the duty cycle, the stimulation sessions to a target tissue location within the patient by way of an electrode array located within the patient at an acupoint corresponding to the target tissue location.