Data Study Groups are week-long events at The Alan Turing Institute bringing together some of the country’s top talent from data science, artificial intelligence, and wider fields, to analyse real-world data science challenges. Improved strength training using smart gym equipment data We were provided with information about users of specialised smart gym equipment and usage data over a period of 2 years. The brief was to explore the data and provide insight into how best to help users improve performance. Of particular interest was the link between training and increased strength (as measured by the machines). Also of interest were longitudinal usage of gym-goers, with the view of aiding adherence to the program, and the creation of a simple performance metric by which user improvement could be measured.