Elham Shakoor; Mohsen Salesi; Farhad Daryanoosh; Payman Izadpanah
Abstract
Background: Exercise is believed to be a non-pharmacological approach to treat hypertension. The present study was conducted to investigate the impact of high-intensity interval training (HIIT) and isometric handgrip (IHG) exercise on hemodynamic responses of High blood pressure women. Methods: In this ...
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Background: Exercise is believed to be a non-pharmacological approach to treat hypertension. The present study was conducted to investigate the impact of high-intensity interval training (HIIT) and isometric handgrip (IHG) exercise on hemodynamic responses of High blood pressure women. Methods: In this experimental study 45 sedentary women (age, 45±5 years) from the Al-Zahra Heart Hospital, Shiraz-Iran (2019) with pre to stage 1 hypertension, without any chronic disease, who volunteered to participate in the research. The subjects were randomly divided into three groups of 15 members: Acute HIIT, Acute IHG exercise, and control. Blood pressure (systolic, diastolic, and mean), rate pressure product and heart rate were measured employing Aneroid Sphygmomanometer Polar HR recorder at the pre-workout time, 0 (immediately after exercise), 5, 10, 15, 30, 45, 60 minutes during the recovery period. The data were analyzed using repeated-measures ANOVA and Bonferroni post hoc test. Results: Our results revealed a significant difference among the study groups regarding blood pressure factors (systolic and mean), heart rate and rate pressure product (P=0.001). The significant decrease in blood pressure in HIIT (P=0.001) and IHG (P=0.001) groups during 60 and 30 minutes of recovery was equal to 10 and 7 mmHg, respectively, and no significant difference was observed in the control group at different times. In response to the HIIT protocol, the heart rate and rate pressure product were significantly higher than the IHG and control groups. Conclusion: Over the recovery period, there was a significant improvement in hemodynamic factors of hypertensive women independent of the type of exercise. However, HIIT training had a longer lasting decrease in blood pressure.
Faegheh Dehganipour; Mohsen Salesi
Abstract
Background: Metabolic syndrome is considered a risk factor for many chronic diseases, such as type II diabetes and cardiovascular diseases (CVD). The syndrome is the result of various factors, including poor nutritional diets, sedentary lifestyles, and genetic predisposition. Physical activity and good ...
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Background: Metabolic syndrome is considered a risk factor for many chronic diseases, such as type II diabetes and cardiovascular diseases (CVD). The syndrome is the result of various factors, including poor nutritional diets, sedentary lifestyles, and genetic predisposition. Physical activity and good nutrition can prevent metabolic syndrome.
Objectives: The aim of the present study was to compare the effects of continuous and discontinuous training on metabolic syndrome components in non-athlete, middle-aged woman.
Patients and Methods: Forty-five non-athlete women who met the study criteria voluntarily participated in this study. The participants were divided randomly into three groups: continuous, discontinuous, and control (n = 15 in each group). Twenty-four hours before the beginning of the training program, a blood sample was obtained from each participant in the fasting state .The two training groups participated in sports activities designed to produce a heart rate of 50 - 70 beats/minute for 8 weeks, three times a week, for 60 - 90 minutes. The continuous training group performed the activities in one session, and the discontinuous training group performed them in two sessions, for the same time and intensity. Twenty-four hours after the completion of the 8-week program, all the measurements were performed similar to the pretest phase. The data were analyzed using a one-way analysis of variance (ANOVA).
Results: The discontinuous training significantly decreased each participant’s weight (P = 0.04) and systolic blood pressure (BP) (P < 0.01), whereas it significantly increased their triglyceride (TG) (P < 0.01) and high-density lipoprotein cholesterol (HDL-c) levels (P < 0.01). However, there was no significant change in diastolic BP, low-density lipoprotein cholesterol (LDL-c), or glucose. In the continuous training group, the TG level decreased significantly (P < 0.01).
Conclusions: This study demonstrated that a regular physical activity program in the form of discontinuous training improved metabolic syndrome indexes in non-athlete, middle-aged women. Discontinuous training seems to be an efficient, safe, and inexpensive way to reduce and prevent metabolic syndrome.
