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Therefore, we assessed the effect of a\u00a0home-based smartphone training program in addition to center-based CR on PA levels in patients with coronary artery disease (CAD).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>CAD patients participating in CR were included in this randomized controlled trial (1:1, stratified for index diagnosis). The control group received usual care CR, whereas the intervention group additionally received a\u00a06-week remote smartphone program. The primary outcome was the change in accelerometer-derived moderate-to-vigorous PA (MVPA) from baseline to post-CR. Secondary outcomes included changes in light intensity PA, step count, sedentary time, functional parameters, quality of life, and cardiac anxiety. A\u00a0baseline-adjusted linear mixed model was used.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Participants (16% female, intervention\n                      <jats:italic>n<\/jats:italic>\n                      \u202f=\u200944, control\n                      <jats:italic>n<\/jats:italic>\n                      \u202f=\u200949) were 63 [56\u201369] years old and had a\u00a0baseline MVPA of\u00a01.0 (95% Confidence interval (CI):\u00a00.9;\u00a01.1) h\/day. Changes in MVPA did not differ between the intervention (0.1 (95% CI: \u22120.0; 0.2) h\/day) and control group post-CR (0.1 (95% CI: \u22120.0; 0.2) h\/day,\n                      <jats:italic>p<\/jats:italic>\n                      <jats:sub>-interaction<\/jats:sub>\n                      \u202f=\u20090.75). Also, no differences between the groups were observed for light intensity PA (0.5 (95% CI: 0.2; 0.8)\n                      <jats:italic>versus<\/jats:italic>\n                      0.4 (95% CI: 0.1; 0.8) h\/day,\n                      <jats:italic>p<\/jats:italic>\n                      <jats:sub>-interaction<\/jats:sub>\n                      \u202f=\u20090.79). Similarly, changes in other secondary outcomes did not differ among groups.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>A\u00a0smartphone training program on top of the usual CR did not yield additional benefits. A\u00a0more elaborate mHealth intervention seems needed to change PA during CR in active patients with CAD.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s12471-026-02039-5","type":"journal-article","created":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T10:27:32Z","timestamp":1775730452000},"page":"189-196","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["A\u00a0cardiac-rehab home-based mHealth program to improve physical activity in patients with coronary artery disease: a\u00a0randomized controlled trial"],"prefix":"10.1007","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4582-0104","authenticated-orcid":false,"given":"Sophie H.","family":"Kroesen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thijs","family":"Vonk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Malou A. 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