Why the study?
Does higher physical activity reduce salt sensitivity of blood pressure in individuals aged 16 or older?
Population
1,906 individuals aged 16 years or older living in rural northern China
Comparison
Highest quartile of usual physical activity… vs Lowest quartile of usual physical activity…
Design
Cohort
Follow-up
14 days
Key result
Being in the highest quartile of physical activity reduced the odds of high salt sensitivity of systolic blood pressure compared with the lowest quartile (OR 0.66; 95% CI 0.49-0.88).
Authors
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May support activity assessment in salt-sensitive patients; leaves open whether increasing activity reduces BP salt sensitivity.
Observational (n=1,906)
Does higher physical activity reduce salt sensitivity of blood pressure in individuals aged 16 or older?
Effect estimate: OR 0.66 (95% CI 0.49-0.88)
Absolute Event Rate: 3.96% vs 5.21%
p-value: p=0.003 for linear trend
Higher levels of physical activity are independently associated with reduced salt sensitivity of blood pressure, suggesting a targeted benefit for salt-sensitive individuals.
Rebholz et al. (2012) conducted an observational in Salt sensitivity of blood pressure (n=1,906). High physical activity (highest quartile) vs. Low physical activity (lowest quartile) was evaluated on High salt sensitivity of systolic blood pressure (OR 0.66, 95% CI 0.49-0.88, p=0.003 for linear trend). Being in the highest quartile of physical activity reduced the odds of high salt sensitivity of systolic blood pressure compared with the lowest quartile (OR 0.66; 95% CI 0.49-0.88).
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