Uncoordinated movement is due to a muscle control problem that causes an inability to coordinate movements. It leads to a jerky, unsteady, to-and-fro motion of the middle of the body (trunk) and an unsteady gait (walking style). It can also affect the limbs. The medical name of this condition is ataxia.
What is the movement accomplished by contraction of a muscle?
- Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.
What causes voluntary movement?
- Voluntary muscles are skeletal muscles that make up 40% of your body weight and consist of 50% to 75% of your total body’s proteins. Skeletal muscles can convert chemical energy into mechanical energy to cause voluntary muscle contraction and movement. 1. Skeletal muscle is composed of fascicles, bundled units of multiple muscle fibers or ...
What can cause involuntary body movements?
- Physical involuntary movement causes. The following causes may result in involuntary movements that are usually not serious.
- Drug reactions. Many drugs and medications can cause involuntary movement syndromes.
- Neurologic dysfunction
- Psychological involuntary movement causes. ...
- Neurological or neurodegenerative diseases. ...
What causes involuntary Jerks in the body?
- - Having a mood disorder, such as depression or bipolar disorder - Having a parent or sibling with a mood disorder, in people who have schizophrenia - Having other movements caused by certain medications - A history of alcohol or drug abuse - Being 50 years of age or older or, for women, being postmenopausal
Ataxia. Ataxia is a degenerative disorder affecting the brain, brainstem or spinal cord. This can result in clumsiness, inaccuracy, instability, imbalance, tremor or a lack of coordination while performing voluntary movements. Movements are not smooth and may appear disjointed or jerky.