PHYS THER
Vol. 88, No. 9, September 2008, pp. 1034-1036
DOI: 10.2522/ptj.20070171.ic
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Invited Commentary

Linda Fetters and John P Scholz

L Fetters, PT, PhD, FAPTA, is Professor, Division of Biokinesiology and Physical Therapy, Department of Pediatrics, Keck School of Medicine, University of Southern California, 1540 Alcazar St, CHP 155, Los Angeles, CA 90033 (USA)
JP Scholz, PT, PhD, is Professor, Department of Physical Therapy and Biomechanics and Movement Science Program, University of Delaware, 307 McKinly Laboratory, Newark, DE 19716 (USA)

Address correspondence to Dr Fetters at: fetters@usc.edu

Address correspondence to Dr Scholz at: jpscholz@udel.edu


Because this article has no abstract, we have provided an extract of the full text and any section headings.

Ohgi et al1 present an interesting approach to investigating differences in the control of spontaneous arm movements in premature infants with and without frank brain injury (BI). The premise of the investigation is that such movements have properties of chaotic systems, requiring nonlinear methods to fully appreciate these properties as well as to distinguish between movements of infants with and without BI. The methods used by the authors provide a promising direction for understanding normal as well as disordered developmental processes. To be truly useful, the results of such analyses should provide new insights about the nature of those processes not obtainable with previous methods. In addition, they should—at least indirectly—motivate ways that clinicians can affect positively the developmental process in infants with BI. We examined the current experimental work with these considerations in mind.

The authors state that their experiment tests 2 hypotheses: "(1) The acceleration time series of . . . [Full Text of this Article]


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S. Ohgi, S. Morita, K. K. Loo, and C. Mizuike
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Physical Therapy, September 1, 2008; 88(9): 1037 - 1038.
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