Which tremor is characterized by oscillation while maintaining a fixed posture?

The tremor that is characterized by oscillation while maintaining a fixed posture is known as a postural tremor. This type of tremor occurs when a person is holding a position against gravity, such as when their arms are extended. The oscillations typically become more pronounced when the individual tries to maintain that posture, distinguishing it from other types of tremors.

In contrast, a resting tremor appears when the affected body part is at rest and generally diminishes with voluntary movement. An intentional tremor occurs during purposeful movements, such as reaching for an object, and typically worsens as the action approaches its target. A dystonic tremor is associated with abnormal muscle contractions leading to twisting or repetitive movements, which can be quite different in presentation compared to the characteristic oscillation seen in postural tremors.