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Physical activity and diet just-in-time adaptive intervention to reduce blood pressure: a randomized controlled trial
Dorsch MP, Golbus JR, Stevens R, Trumpower B, Basu T, Luff E, Warden K, Giacalone M, Bailey S, Rubick GV, Mishra S, Klasnja P, Newman MW, Skolarus LE, Nallamothu BK
NPJ Digital Medicine 2025 Jul 14;8(438):Epub
clinical trial
This trial has not yet been rated.

Mobile health interventions for behavioral change require large-scale studies to ensure their clinical benefits. We conducted a randomized controlled trial of patients with hypertension to assess the myBPmyLife application in promoting physical activity and lower-sodium foods to lower systolic blood pressure (SBP). 602 participants were randomly assigned to either a control group or an intervention group that received the myBPmyLife application. For the primary outcome, change in SBP over 6 months was -5.2 mmHg in the intervention and -5.7 mmHg in the control group (p = 0.76). For secondary outcomes, the intervention group increased their daily step count by 170 steps, while the control group decreased by 319 steps (p = 0.040). Sodium intake decreased by 1145 mg in the intervention and 860 mg in the control group (p = 0.002). The myBPmyLife application did not reduce SBP over 6 months in hypertension patients despite increasing step counts and lowering sodium intake. CLINICALTRIALS.GOV REGISTRATION: NCT05154929, 12/2021.

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