Global Kinetics

Understanding PKG

The PKG®

Supporting your Clinical Evaluations

The PKG® provides objective, ambulatory, continuous assessment of motor complications associated with movement disorders including:

  • Assessment of bradykinesia, dyskinesia and tremor
  • Ability to correlate symptom fluctuations and their severity with respect to levodopa dosage
  • Self-reported levodopa compliance
  • A record of daytime sleepiness and immobility
  • Assessment of the risk of Impulse Control Disorders
The PKG®

PKG Assessment

Assessment with a PKG® can be useful in:

  • Establishing a symptomology baseline and monitoring response to treatment
  • Confirming an intervention has worked and guiding therapy optimisation
  • Discovering “off” times with current therapy
  • Establishing whether an advanced therapy should be considered
  • Identifying non motor symptoms of Parkinson’s Disease such as sleep and risk of ICD
  • Obtaining a comprehensive initial patient history

Understanding PKG

Dyskinesia & Bradykinesia


Dyskinesia score (DKS)

Quantifies high acceleration movements classic of dyskinetic motor symptoms.


Bradykinesia score (BKS)

Quantifies low power and acceleration movements classic of bradykinetic motor symptoms.

Target ranges used in the PKG report are based on consensus targets published in: Rajesh Pahwa R, Stuart H. Isaacson, Diego Torres-Russotto, Fatta B. Nahab, Peter M. Lynch & Katya E. Kotschet (2018) Role of the Personal Kineti-Graph in the routine clinical assessment of Parkinson’s disease: recommenda-tions from an expert panel, Expert Review of Neurotherapeutics, 18:8, 669-680, DOI: 10.1080/14737175.2018.1503948

Tremor Assessment


Tremor score (PTT)

Quantifies the frequency and magnitude of tremor, to facilitate detailed patient conversations

Daytime Sleep & Immobility

Percent Time

Immobility (PTI)

Quantifies the time your patient spends without movement, helping to describe sustained immobility, daytime sleep and somnolence.