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    The relationship between exercise capacity and masked hypertension in sedentary patients with diabetes mellitus
    (Taylor & Francis Inc, 2014) Akilli, Hakan; Kayrak, Mehmet; Aribas, Alpay; Tekinalp, Mehmet; Ayhan, Selim Suzi; Gunduz, Mehmet; Alibasic, Hajrudin
    Aim: Although exaggerated blood pressure responses (EBPR) to exercise have been related to future hypertension and masked hypertension (MHT), the relationship between exercise capacity and MHT remains unclear. A sedentary life style has been related to increased cardiovascular mortality, diabetes mellitus (DM), and hypertension. In this study, we aimed to examine the relationship between exercise capacity and MHT in sedentary patients with DM. Methods: This study included 85 sedentary and normotensive patients with DM. Each patient's daily physical activity level was assessed according to the INTERHEART study. All patients underwent an exercise treadmill test, and exercise duration and capacity were recorded. Blood pressure (BP) was recorded during all exercise stages and BP values >= 200/110 mmHg were accepted as EBPR. MHT was diagnosed in patients having an office BP < 140/90 mmHg and a daytime ambulatory BP > 135/85 mmHg. Patients were divided into two groups according to their ambulatory BP monitoring (MHT and normotensive group). Results: The prevalence of MHT was 28.2%. Exercise duration and capacity were lower in the MHT group than in the normotensive group (p < 0.05) and were negatively correlated with age, HbA1c, mean daytime BP, and mean 24 hour BP. Peak exercise systolic BP and the frequency of EBPR were both increased in the MHT group (25.0% and 8.1%, respectively, p = 0.03). According to a multivariate regression, exercise capacity (OR: 0.61, CI95%: 0.39-0.95, p = 0.03), EBPR (OR: 9.45, CI95%: 1.72-16.90, p = 0.01), and the duration of DM (OR: 0.84, CI95%: 0.71-0.96, p = 0.03) were predictors of MHT. Conclusion: Exercise capacity, EBPR, and the duration of DM were predictors of MHT in sedentary subjects with DM.