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Invited Commentary

CJ Winstein, PhD, PT, is Assistant Professor, Department of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA 90033

This excerpt was created in the absence of an abstract.

Pai and colleagues have shown that ambulatory individuals with a left cerebrovascular accident (CVA) are capable of the leg-flexion/frontal-plane weight-transfer task to the nonparetic limb 48% of the time and to the paretic limb only 20% of the time. They also characterized the nature of the failed trials to the nonparetic side as a failure to hold (26%) or a failure to accomplish the necessary displacement of the center of mass (CM) (26%). To the paretic side, failures were primarily due to an inability to hold (63%), whereas only 17% of the failures were attributed to a lack of adequate CM displacement. The authors should be commended for a well-done study that provides sound baseline information on voluntary dynamic weight-transfer capability. In addition they have provided a potentially useful classification scheme for evaluation and clinical decision making. This commentary is focused on two important issues....

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