Reproducibilidad de las variables temporales y cinéticas del análisis computarizado de la marcha en sujetos normales

The movement analysis laboratory has become the standard to analyze gait disorders of the patient.

This study has aimed to evaluate the intra-test variability of the spatiotemporal and kinematic parameters that make up the Gillette gait endex (GGI) and the Gait deviation index (GDI) in normal patients. We have also investigated the consistency of the GDI in different measurements to analyze gait in normal patients.

Materials and methods

A sample of 20 healthy subjects was used to evaluate our hypothesis. Each subject underwent two gait analysis with an interval of two weeks between each analysis. The intraclass correlation coefficient (ICC) was used to evaluate the reproducibility of the tests.

Results

Good agreement was found in most of the variables used with the exception of the transverse parameters for the hip and sagittal parameters for the ankle in which the ICC was 0.49 and 0.53, respectively.

Conclusion

In conclusion, we found that the gait analysis procedure carried out using the motion analysis laboratory has good reproducibility and agreement among tests conducted on different days in normal subjects. This allows us to recommend this procedure as a reliable method to objectively evaluate gait alterations.