From HPO
Dyskinesia- MedGen UID:
- 8514
- •Concept ID:
- C0013384
- •
- Disease or Syndrome
A movement disorder which consists of effects including diminished voluntary movements and the presence of involuntary movements.
Tremor- MedGen UID:
- 21635
- •Concept ID:
- C0040822
- •
- Sign or Symptom
An unintentional, oscillating to-and-fro muscle movement about a joint axis.
Akinesia- MedGen UID:
- 43218
- •Concept ID:
- C0085623
- •
- Finding
Inability to initiate changes in activity or movement and to perform ordinary volitional movements rapidly and easily.
Bradykinesia- MedGen UID:
- 115925
- •Concept ID:
- C0233565
- •
- Sign or Symptom
Bradykinesia literally means slow movement, and is used clinically to denote a slowness in the execution of movement (in contrast to hypokinesia, which is used to refer to slowness in the initiation of movement).
Resting tremor- MedGen UID:
- 66697
- •Concept ID:
- C0234379
- •
- Sign or Symptom
A resting tremor occurs when muscles are at rest and becomes less noticeable or disappears when the affected muscles are moved. Resting tremors are often slow and coarse.
Parkinsonian disorder- MedGen UID:
- 66079
- •Concept ID:
- C0242422
- •
- Disease or Syndrome
Characteristic neurologic anomaly resulting from degeneration of dopamine-generating cells in the substantia nigra, a region of the midbrain, characterized clinically by shaking, rigidity, slowness of movement and difficulty with walking and gait.
Postural instability- MedGen UID:
- 334529
- •Concept ID:
- C1843921
- •
- Finding
A tendency to fall or the inability to keep oneself from falling; imbalance. The retropulsion test is widely regarded as the gold standard to evaluate postural instability, Use of the retropulsion test includes a rapid balance perturbation in the backward direction, and the number of balance correcting steps (or total absence thereof) is used to rate the degree of postural instability. Healthy subjects correct such perturbations with either one or two large steps, or without taking any steps, hinging rapidly at the hips while swinging the arms forward as a counterweight. In patients with balance impairment, balance correcting steps are often too small, forcing patients to take more than two steps. Taking three or more steps is generally considered to be abnormal, and taking more than five steps is regarded as being clearly abnormal. Markedly affected patients continue to step backward without ever regaining their balance and must be caught by the examiner (this would be called true retropulsion). Even more severely affected patients fail to correct entirely, and fall backward like a pushed toy soldier, without taking any corrective steps.
Rigidity- MedGen UID:
- 7752
- •Concept ID:
- C0026837
- •
- Sign or Symptom
Continuous involuntary sustained muscle contraction. When an affected muscle is passively stretched, the degree of resistance remains constant regardless of the rate at which the muscle is stretched. This feature helps to distinguish rigidity from muscle spasticity.
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system