Hyperkinetic is an adjective.
hyperkinetic condiotions
hyperkinetic disease is paying kinect on xbox 360 and hypokinect is playing kinect on xbox 360 with friends
heart disease
unspecified hyperkinetic syndrome
Hyperkinetic movements can be caused by conditions such as Tourette syndrome, Huntington's disease, or ADHD. These movements are characterized by excessive, involuntary muscle contractions and can manifest as tics, chorea, or restless movements. Treatment options may include medications, therapy, and lifestyle changes.
because it is caused by too much physical activity
Hyperkinetic conditions involve excessive movement or muscle activity, such as in hyperactivity or chorea. Hypokinetic conditions involve decreased movement or muscle activity, as seen in conditions like Parkinson's disease. Both types of conditions can affect a person's motor function and overall quality of life.
Abnormal movements are broadly classified as either hyperkinetic--too much movement--and hypokinetic--too little movement
Hyperkinetic essentially means "over active." If you look in the links section of this answer you will find an URL to the Google search for the term and you will find many websites listed which offer information.
Robert D. Oades has written: 'Attention Deficit/Hyperactivity Disorder (Ad/hd) And the Hyperkinetic Syndrome (Hks)'
Constant movement or restlessness could be described as hyperactivity or being unable to sit still. Alternatively, it could be related to conditions such as restless legs syndrome or hyperkinetic disorder.