Optimal Movement Variability: A New Theoretical Perspective for Neurologic Physical Therapy

@article{Stergiou2006OptimalMV,
  title={Optimal Movement Variability: A New Theoretical Perspective for Neurologic Physical Therapy},
  author={Nicholas Stergiou and Regina T Harbourne and James T. Cavanaugh},
  journal={Journal of Neurologic Physical Therapy},
  year={2006},
  volume={30},
  pages={120–129}
}
Variability is a natural and important feature of human movement. Using existing theoretical frameworks as a foundation, we propose a new model to explain movement variability as it relates to motor learning and health. We contend that mature motor skills and healthy states are associated with an optimal amount of movement variability. This variability also has form and is characterized by a chaotic structure. Less than optimal movement variability characterizes biological systems that are… Expand
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The implications of recent evidence that optimal movement variability, which previously had been associated with adaptable motor behavior, contains a specific complex nonlinear feature known as "multifractality" are discussed. Expand
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This perspective article argues for changes in the way therapists view variability, both in theory and in action, to create a springboard for new directions in physical therapist research and practice. Expand
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The review concludes that motor variability is, indeed, a relevant issue in occupational health and performance and suggests a number of key issues for further research. Expand
NON-LINEAR TOOLS AND METHODOLOGICAL CONCERNS MEASURING HUMAN MOVEMENT VARIABILITY: AN OVERVIEW
In recent years, several works have explored variability using different approaches, trying to describe the variations in motor movement. Traditionally, movement variability was regarded as a system… Expand
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Neuromotor processes are inherently noisy, which results in variability during movement and fluctuations in motor control. Although controversial, low levels of variability are traditionally… Expand
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A new clinical perspective for SD is argued, which suggests a different palpatory assessment of its clinical signs: the Variability Model, which explains SD semeiotics which could be related to "body adaptability", thus having implications with the concept of health. Expand
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