<unk>  refers to slow or diminished movement of body musculature.  It may be associated with basal ganglia diseases; mental disorders; prolonged inactivity due to illness; experimental protocols used to evaluate the physiologic effects of immobility; and other conditions.
There are 4 types of this disorder: 
Bradykinesia: this is the slowness of movement and has been linked to Parkinson Disease
Freezing: this is when you can't move your muscles how you want them too.
Rigidity: the increase in muscle tension when moved by an outside force
Postural instability: loss of ability to maintain an upright posture.
Hypokinesia
Hypoosmolality
Horror vacui
Hyperpigmentation
Dyschromia
Acanthocytosis
Myocytolysis
Heterolysis