Original ResearchPublished 12 October 2026Perceived support from AI health tools and exercise adherence among university students: a three-wave study of exercise self-efficacy and autonomous motivationYuchao Lu · Ruihong Tang · Baijie Zeng · Jiazeng Sun · Shaoheng Liang · Degui FuFrontiers in Psychologydoi 10.3389/fpsyg.2026.1872095