OBJECTIVES Moderate to vigorous physical activity is recommended to prevent hypertension according to the current guidelines.However,the degree to which the total physical activity(TPA)and its changes benefit normotensives and hypertens-ives is uncertain.We aimed to examine the effects of TPA and its changes on the incidence,progression,and remission of hyper-tension in the large-scale prospective cohorts.METHODS A total of 73,077 participants(55,101 normotensives and 17,976 hypertensives)were eligible for TPA analyses.Dur-ing a mean follow-up of 7.16 years(394,038 person-years),12,211 hypertension cases were identified.TPA was estimated as meta-bolic equivalents and categorized into quartiles.Cox proportional hazards regression and multivariable logistic regression were used to estimate associations of TPA and changes in TPA with incident hypertension and progression/remission of hypertension.RESULTS Compared with the lowest quartile of TPA,normotensives at the third and the highest quartile had a decreased risk of incident hypertension,with hazard ratios(HRs)of 0.86[95％confidence interval(CI):0.81-0.91]and 0.81(95％CI:0.77-0.86),respectively.Hypertensives at the highest quartile of TPA demonstrated a decreased risk of progression of hypertension[odds ra-tio(OR)= 0.87,95％CI:0.79-0.95],and an increased probability of hypertension remission(OR = 1.17,95％CI:1.05-1.29).Moreover,getting active from a sedentary lifestyle during the follow-up period could reduce 25％(HR = 0.75,95％Cl:0.58-0.96)risk of incident hypertension,whereas those becoming sedentary did not achieve benefit from initially being active.CONCLUSIONS Our findings indicated that increasing and maintaining TPA levels could benefit normotensives,whereas higher TPA levels were needed to effectively control progression and improve remission of hypertension.Physical activity played undoubtedly an essential role in both primary and secondary prevention of hypertension.