 consider the open source ‘Actant - Activity Analysis Toolbox’ (<a href="https://github.com/maximosipov/actant" class="uri">https://github.com/maximosipov/actant</a>), by Osipov &amp; Te Lindert, which includes functionality for visualization and analysis of behavioral and environmental timeseries, acquired using GENEActiv (and other) accelerometers. No accompanying app exists with which study participants can be provided feedback about their activity. This might negatively affect wear-time and study co