Fig. 1. Two examples of information produced by the OGA app.
Fig. 2. The smartphone (with the app downloaded) is secured on a stable platform just above eye level and centered on the area where the horse trots up in hand.
the horse away and back twice will collect sufficient data to return reliable results. Given that this is a common starting point for many clinicians, it repre- sents no extra work beyond pressing record on the
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smartphone app. The video is then uploaded and proc- essed by the bespoke algorithm, and a result is returned within approximately 5 minutes. It provides data on the affected limb(s) using a simple color-coded