---
title: "Review trials and fill gaps"
canonical: "https://help.vicon.com/space/Nexus212/11251273/Review%20trials%20and%20fill%20gaps"
format: markdown
---
When you have reconstructed and labeled your movement trials (see [Capture movement trials](https://vicon-help.atlassian.net/wiki/spaces/Nexus212/pages/11248211)), you can review the results and fill any gaps in the trial data.

1. If other Nexus users may have worked on your trial data, you may first want to check on any processing that has been performed on the files (see [Review processing history](https://vicon-help.atlassian.net/wiki/spaces/Nexus212/pages/11239552)).
2. Review data quality by playing through the trial using the **Time Bar** and/or looking at the information on the data **Quality** tab (see [Review data quality](https://vicon-help.atlassian.net/wiki/spaces/Nexus212/pages/11250973)).
3. If necessary, crop any large gaps at the beginning and/or end of the trial, either manually or automatically (see [Crop trials](https://vicon-help.atlassian.net/wiki/spaces/Nexus212/pages/11240301)).
4. Fill any gaps using either automatic or manual gap-filling (see [Fill gaps in trial data](https://vicon-help.atlassian.net/wiki/spaces/Nexus212/pages/11245930)).
5. If required, you can add events to trials (see [Add events to trials](https://vicon-help.atlassian.net/wiki/spaces/Nexus212/pages/11247221)).

After you have filled any gaps in your trial data, you can run the required modeling operations. For more information on modeling, see [Modeling with Plug-in Gait](https://vicon-help.atlassian.net/wiki/spaces/Nexus212/pages/11248253).