The effects of isometric resistance training conducted using handgrip exercise on blood pressure variability in hypertensive patients with minor ischemic stroke / 中国实用护理杂志

ABSTRACT

Objective The present study aimed to evaluate the effects of isometric resistance training(IRT)conducted using handgrip exercise on blood pressure variability (BPV) and heart rate variability (HRV) in hypertensive patients with minor ischemic stroke (MIS).Methods One hundred and twenty-five hypertensive patients with MIS were included in the present study. Patients were randomized into two groups with random number table. Patients in the control group (n=60) were nursed in the routine care in department of neurology, while patients in the experimental group (n=65) received the IRT.The 24-hour ambulatory blood pressure-monitoring assessment was performed using validated oscillometric recorders (A&D TM- 2430, A&D Inc.,Tokyo,Japan).The 24- hour ambulatory electrocardiography measurement was performed using electrocardiocorder(PI200A-A, QunTian Inc.,Shanghai,China).The BPV ratio and the HRV ratio were assessed in the two groups. Results 24 hours after the intervention, intervention group 24 hours systolic blood pressure variation coefficient and diastolic blood pressure variation coefficient were(10.16 ± 1.95)％,(12.6 ± 7.15)％,the control group, respectively (12.92 ± 2.79)％, (17.38±4.49)％, two groups compare the difference was statistically significant (t=6.450, 4.435, P<0.05). Intervention group of normal sinus R- R period between the standard deviation, to the phase difference between adjacent R- R , root mean square value of the whole difference in more than 50 ms continuous period of percentage between normal R-R and triangle Index were (173.3±58.5) ms, (115.9±74.4), (54.8± 24.1)％, (53.3 ± 15.1).The control group was(128.7 ± 40.2)ms, (82.1 ± 35.2),(39.9 ± 17.1)％, (30.6 ± 14.9), and the difference between the two groups was statistically significant(t=-8.439--3.207, all P<0.05). Conclusions Isometric resistance training conducted using handgrip exercise could increase the HRV and decrease the BPV in hypertensive patients with MIS. These results indicated that the IRT may improve the life quality of hypertensive patients with MIS.