这位老人走路时表现出典型的帕金森症状，包括颤抖和僵硬。

The elderly man showed classic ___parkinsonian symptoms like tremors and stiffness when walking.

医生观察到患者的帕金森震颤，这是该疾病的常见症状。

The doctor observed the patient's ___parkinsonian tremor, a common symptom of the disease.