History of ADplot

Asymmetry vs Deviation plot (ADplot) was developed in ELEPAP Gait & Motion Analysis Center in 2011.

The creation of the tool was a developmental procedure which started earlier in 2006.

It all started by driving back home in a jammed with traffic road by the sea, where the idea of the Gait Graph Deviation Index was born. The idea was to express Instant Gait Graph Deviations as proportion of the respective Normal subject's deviation. This idea was materialized using the BIOKIN Motion Analysis software and started to be applied in the daily practice of our laboratory.

2007 - Year of Gait Graph Deviation Index (GGDI) presentation

The Gait Graph Deviation Index (GGDI) was firstly introduced during the 16th Annual Meeting of ESMAC in 2007 where ELEPAP had the honor to organize this meeting in Athens, Greece.

Gait Graph Deviation Index poster presentation in ESMAC 2007, Athens

The potential of the GGDI became clear in the clinical practice. We use it to quantify and clarify the differences that occur pre-post treatment or for comparisons like barefoot gait and shod/orthotics etc.

2010 - Year of Gait Graph Asymmetry Index (GGAI) presentation

The next milestone in the developmental process of the tool, came through our clinical observation that although asymmetry is evident in many subjects measurement there were no quantification tools to be able to evaluate it objectively. So, the idea of the Gait Graph Asymmetry Index (GGAI) was then materialized based on the same concepts used for the GGDI. With this tool which was introduced in the 20th Annual Meeting of ESMAC in 2010 in London we were able to analyze and quantify the asymmetry of a group of the Hemiplegic Subjects that were refered in our lab for Gait Analysis.

Gait Graph Asymmetry Index poster presentation in ESMAC 2010, London

The final step was the idea that Asymmetry and Deviation should be observed combined for the overall evaluation of the pathological behavior of the gait analysis graphs. The fact that both indexes produced in the earlier stages were sharing the same units made possible to create the ADplot instrument which for the first time allowed us to visualize both aspects of pathological gait graphs at once.

2011 - Year of Asymmetry vs Deviation plot (ADPlot) presentation

The ADPlot was introduced in the 21st Annual Meeting of ESMAC in 2011 in Viena.

Asymmetry vs Deviation: A new Gait Analysis Data Reduction Tool, oral presentation in ESMAC 2011, Vienna

2013 - Year of improved Asymmetry vs Deviation plot (ADPlot) presentation

Since then, there have been improvements and additional features that were incorporated in the final version presented in this site. We hope that these tools will be useful for the clinical and research areas of Gait Analysis. That was the reason for the creation of this support site with a detailed documentation of the structure and use of the tool, as well as for sharing ideas about it.