A tremor is defined as an unintended movement of the body. Hand tremors refer to shaky movement of the hands, which affects quality of life to a great extent. Some amount of tremor in the hands is normal. This type of tremor is called physiological tremor, and occurs most often when the hand is outstretched. However, there are also various types of tremors that are caused by neurological diseases, some of which are progressive and get worse over time. There are mainly three types of hand tremors basis their characteristics.
Intention Tremor
This kind of hand tremor causes rhythmic shaking during purposeful movement, such as pressing a button. However the frequency of intention tremor is quite slow. Its major causes include alcoholism or abuse of sedative or anticonvulsive drugs. Neurological disorders, such as stroke or multiple sclerosis, may also cause intention tremor.
Resting Tremor
This type of tremor occurs when hands and arms are resting. The frequency of this tremor is often slow. It is also associated with Parkinson's disease. The preliminary sign of Parkinson's disease is an asymmetric tremor, referring to tremor affecting only one side of the body. Resting tremors generally subside during purposeful movement, and do not cause major difficulty with daily activities
Postural Tremor
Postural tremors refer to rhythmic shaking of the hands when they are held in one position for a length of time. Essential tremor may also lead to postural-type tremors. Though normal physiological tremor can cause the gradual development of a postural tremor, a sudden onset of this type of tremor may indicate ingestion of a toxin or hyperthyroidism.
Role of technology in Tremor Cancellation
When it comes to tremor cancellation, technology plays a vital role in helping people overcome their embarrassing lives. You would be surprised after knowing that currently there is no cure for essential tremor. All treatment options only help with the symptoms.
Engineers today come out with smart devices that help people with neurological disorders like essential tremor and Parkinson's disease complete those daily tasks more comfortably. These hand-held devices are based on active stabilization technology to cancel the tremors. They are comprised of battery-operated base, motion sensors, a microcontroller and tiny motors. These sensors detect the motion of tremors, both horizontally and vertically, and the installed microcomputer uses this data to control the motors in the direction opposite the tremor.
The best part of these devices is that they can be easily fitted with spoons, forks and other objects.
