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  • Title: Association between leisure-time physical activity and arterial stiffness in adults of the ELSA-Brasil study: a mediation analysis.
    Author: Baldo MP, Zaniqueli DA, Cunha RS, Griep RH, Barreto SM, Bensenor I, Lotufo PA, Mill JG.
    Journal: J Hypertens; 2024 Oct 01; 42(10):1711-1719. PubMed ID: 38841997.
    Abstract:
    OBJECTIVES: We aimed at defining the direct and the mediated pathways for the association between leisure-time physical activity (LTPA) and carotid-to-femoral pulse wave velocity (cf-PWV), and also to identify whether these effects are influenced by sex and age. METHODS: Cross-sectional data from 13 718 adults (35-74 years) were obtained at the baseline of the ELSA-Brasil study. The cf-PWV was obtained by measuring the pulse transit time and the distance traveled by the pulse between the carotid and the femoral, as well as clinical and anthropometric parameters were measured. The levels of LTPA were determined by applying the long form of the International Physical Activity Questionnaire (IPAQ). RESULTS: Classical cardiovascular risk factors were independently associated with cf-PWV. Path analysis showed that increased levels of LTPA were directly associated with lower cf-PWV in both men and women ( β : -0.123 ± 0.03 vs. 0.065 ± 0.029, P for sex = 0.165), except for diabetes. Also, the mediated effect of LTPA on SBP and DBPs, heart rate, BMI, and fasting glucose, was associated with lower cf-PWV in men and women ( β : -0.113 ± 0.016 vs. -0.104 ± 0.016, P for sex = 0.692), except for diabetes. When age was tested as a moderator, the direct effect did not change significantly according to participants' age, regardless of sex. However, the mediated effect increases in both men and women over 50 years. CONCLUSION: Our findings support that LTPA in adults reduces cf-PWV by acting in different ways according to age. Physical activity in older individuals improves cardiometabolic risk factors and thus mitigates the stiffening of large arteries.
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