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Med."],"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:p>Despite widespread interest in integrating mobile health apps into primary care to prevent and manage physical inactivity-related health conditions, the effectiveness of these apps remains unclear. We quantified the effects of Active 10 (a goal setting and self-monitoring app developed by Public Health England) on brisk and non-brisk walking using a single-group interrupted time-series analysis of individual-level data collected between July 2021 and January 2024. Among Active 10 users (<jats:italic>n<\/jats:italic>\u2009=\u2009201,668\u2009l; 51.4\u2009\u00b1\u200914.4 years; 75.4% women) brisk and non-brisk walking increased by 9.0 (95% confidence interval (CI) 8.9, 9.1; 73% above baseline) and 2.6\u2009min\/day (95% CI 2.4, 2.8; 9% above baseline), respectively, on the day of app download. Post-download, brisk and non-brisk walking decreased by 0.15 (95% CI \u22120.17, \u22120.13) and 0.06 (95% CI \u22120.08, \u22120.03) min\/day\/month, respectively, but remained above baseline. Our findings suggest that Active 10 may be effective in facilitating increases in brisk and non-brisk walking.<\/jats:p>","DOI":"10.1038\/s41746-025-01785-x","type":"journal-article","created":{"date-parts":[[2025,8,6]],"date-time":"2025-08-06T09:03:45Z","timestamp":1754471025000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Evaluation of the NHS active 10 walking app intervention through time-series analysis in 201,688 individuals"],"prefix":"10.1038","volume":"8","author":[{"given":"Dharani","family":"Yerrakalva","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Samantha","family":"Hajna","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Soren","family":"Brage","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simon J.","family":"Griffin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,8,6]]},"reference":[{"key":"1785_CR1","doi-asserted-by":"publisher","first-page":"1385","DOI":"10.1038\/s41591-020-1012-3","volume":"26","author":"T Strain","year":"2020","unstructured":"Strain, T. et al. 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