Meta-analysis of randomized controlled trials shows walking lowers resting blood pressure without true inter-individual response variation, suggesting external factors drive individual differences.
CONCLUSIONS: While walking is associated with reductions in resting SBP and DBP, a lack of true IIRD exists, suggesting that factors other than training response variation (random variation, physiological responses associated with behavioral changes that are not the result of walking) are responsible for the observed variation in resting SBP and DBP.
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Kelley et al. (2022) studied this question.
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