Use of the normalcy index for the evaluation of gait pathology

The normalcy index (NI) has been proposed as a method for quantifying the amount of deviation in a subject's gait, compared to the gait of the average unimpaired person. The NI was computed for a sample of 144 children affected by cerebral palsy, five idiopathic toe-walkers and 12 able-bodied s...

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Bibliographic Details
Published in:Gait & posture 2004-02, Vol.19 (1), p.85-90
Main Authors: Romei, M., Galli, M., Motta, F., Schwartz, M., Crivellini, M.
Format: Article
Language:English
Subjects:
3D-gait analysis
Adolescent
Adult
Biomechanical Phenomena
Cerebral palsy
Cerebral Palsy - complications
Cerebral Palsy - rehabilitation
Child
Gait - physiology
Gait Disorders, Neurologic - diagnosis
Gait Disorders, Neurologic - etiology
Humans
Normalcy index
Paralysis - diagnosis
Paralysis - etiology
Reference Values
Reproducibility of Results
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Summary:The normalcy index (NI) has been proposed as a method for quantifying the amount of deviation in a subject's gait, compared to the gait of the average unimpaired person. The NI was computed for a sample of 144 children affected by cerebral palsy, five idiopathic toe-walkers and 12 able-bodied subjects. It was sensitive enough to distinguish unimpaired subjects from idiopathic toe-walkers and to distinguish between the plegic and uninvolved limbs of hemiplegic patients. The NI was robust enough to categorize pathology, ranging from mild disorders to quadriplegia. The NI was found to be clinically applicable, reliable and easy to use, making it a valuable element in the quantitative evaluation of gait pathology.
ISSN:0966-6362
1879-2219
DOI:10.1016/S0966-6362(03)00017-1