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The intervention group (<jats:italic>n<\/jats:italic>=20) performed physical activity over a period of 6 months. The control group (<jats:italic>n<\/jats:italic>=17) did not receive any intervention. Baseline and final examinations included dental parameters and concentrations of glycosylated hemoglobin (HbA1c) and high-sensitivity C-reactive protein (hsCRP).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Physical activity showed a positive effect on periodontal health. Both the BOP (<jats:italic>p<\/jats:italic>= 0.005) and the severity of periodontitis (<jats:italic>p<\/jats:italic>= 0.001) were significantly reduced in the intervention group compared to the control group. Furthermore, HbA1c levels were reduced (<jats:italic>p<\/jats:italic>= 0.010) significantly in the intervention group while hsCRP levels significantly increased in the control group (<jats:italic>p<\/jats:italic>= 0.04).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Within the limitations of this randomized, controlled trial, physical activity over a period of 6 months is a health-promoting measure for patients with T2DM and improves both periodontal health and HbA1c concentrations.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00784-021-03908-6","type":"journal-article","created":{"date-parts":[[2021,4,1]],"date-time":"2021-04-01T21:02:24Z","timestamp":1617310944000},"page":"6101-6107","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Influence of physical activity on periodontal health in patients with type 2 diabetes mellitus. 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