<![CDATA[Fluctuations in blood pressure (BPV) can increase the risk of heart related problems. Simple, non-medical treatments, like foot baths with ma nenesium sulfate (MgSO₄), may help lower blood pressure and promote overall heart health. To analyze the effect of foot baths with MgSO₄ on the mean andshort-term variability of systolic blood pressure (SBP) and diastolic blood pressure (DBP) in hypertensive patients. A randomized controlled trial was conducted at the Maos Community Health Center (July–August 2025) with 60 hypertensive patients randomly assigned to intervention (foot immersion with 2% MgSO₄) or control (plain water). Blood pressure and variability (RMSSD, ARV, CV%) were measured across 15 sessions and analyzed using Repeated Measures ANCOVA (p < 0.05). The mean SBP was significantly lower in the intervention group (140.1 vs 155.4 mmHg; p<0.001; d=1.26). RMSSD (9.6 vs 12.7; p<0.001) and ARV (7.4 vs 10.7; p<0.001) were significantly lower in the intervention group, indicating better SBP stability. ANCOVA revealed a significant group effect on RMSSD (F=11.31; p=0.0014; η²=0.17) and ARV (F=17.50; p=0.0001; η²=0.24). DBP did not show significant differences.Foot baths with MgSO₄ reduced the average SBP and improved short-term SBP stability. This intervention has potential as a complementary non-pharmacological therapy for hypertension.]]>
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