Behavioural change towards reduced intensity physical activity is disproportionately prevalent among adults with serious health issues or self-perception of high risk during the UK COVID-19 lockdown.

Anonymous survey data were collected online between 2020-04-06 and 2020-04-22, roughly mapping to weeks 3-5 of the lockdown in the UK. The main survey included 49 questions which covered a broad range of topics including (1) Demographics, (2) Health and Health Behaviours, (3) Adherence to COVID-19 Control measures, (4) Information sources used to learn about COVID-19, (5) Trust in various information sources, government and government decision-making, (6) Rumours and misinformation, (7) Contact & Communication during COVID-19 and (8) Fear and Isolation.

This data set includes 20 variables and 5,820 responses and relates to medRxiv submission MEDRXIV/2020/098921 - Version 1. It has been superseded by version 2 of the dataset, which can be found at doi.org/10.17037/DATA.00002091.