High intensity interval training (HIIT) improves resting blood pressure, metabolic (MET) capacity and heart rate reserve without compromising cardiac function in sedentary aging men

ObjectiveWe aimed to compare the efficacy of isometric exercise training (IET) versus high-intensity interval training (HIIT) in the management of resting blood pressure (BP).DesignSystematic review and meta-analysis.Data sourcesPubMed (MEDLINE), the Cochrane library and SPORTDiscus were systematically searched.Eligibility criteriaRandomised controlled trials published between 1 January 2000 and 1 September 2020. Research trials reporting the effects of IET or HIIT on resting BP following a short-term intervention (2–12 weeks).Results38 studies were analysed (18 IET and 20 HIIT), including 1583 (672 IET and 911 HIIT) participants, of which 612 (268 IET and 344 HIIT) were controls.IET produced significantly greater reductions in resting BP compared with HIIT with systolic, diastolic and mean BP effect sizes of 8.50 mm Hg vs 2.86 mm Hg (Q=17.10, p<0.001), 4.07 mm Hg vs 2.48 mm Hg (Q=4.71, p=0.03) and 6.46 mm Hg vs 3.15 mm Hg (Q=4.21, p=0.04) respectively. However, HIIT reduced resting heart rate significantly more than IET (3.17bpm vs 1.34bpm, Q=7.63, p=0.006).ConclusionWhile both modes are efficacious, IET appears to be the superior mode of exercise in the management of resting BP. However, HIIT may achieve wider physiological benefits, with greater reductions in resting heart rate.

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Cardiorespiratory Responses During High-Intensity Interval Training Prescribed by Rating of Perceived Exertion in Patients After Myocardial Infarction Enrolled in Early Outpatient Cardiac Rehabilitation

Frontiers in Cardiovascular Medicine ◽

10.3389/fcvm.2021.772815 ◽

2022 ◽

Vol 8 ◽

Author(s):

Yaoshan Dun ◽

Shane M. Hammer ◽

Joshua R. Smith ◽

Mary C. MacGillivray ◽

Benjamin S. Simmons ◽

...

Keyword(s):

Myocardial Infarction ◽

Blood Pressure ◽

Heart Rate ◽

Gas Exchange ◽

Cardiac Rehabilitation ◽

High Intensity ◽

Perceived Exertion ◽

Interval Training ◽

High Intensity Interval Training ◽

High Intensity Interval

Objective: We aimed to determine the cardiorespiratory responses during, and adaptations to, high-intensity interval training (HIIT) prescribed using ratings of perceived exertion (RPE) in patients after myocardial infarction (MI) during early outpatient cardiac rehabilitation (CR).Methods: We prospectively recruited 29 MI patients after percutaneous coronary intervention who began CR within 2 weeks after hospital discharge. Eleven patients (seven men; four women; age: 61 ± 11 yrs) who completed ≥24 supervised HIIT sessions with metabolic gas exchange measured during HIIT once weekly for 8 weeks and performed pre- and post- CR cardiopulmonary exercise tests were included in the study. Each HIIT session consisted of 5–8 high-intensity intervals [HIIs, 1-min RPE 14–17 (Borg 6–20 scale)] and low-intensity intervals (LIIs, 4-min RPE < 12). Metabolic gas exchange, heart rate (HR), and blood pressure during HIIT were measured.Results: The mean oxygen uptake (V˙O2) during HIIs across 88 sessions of HIITs [91 (14)% of V˙O2peak, median (interquartile range, IQR)] was significantly higher than the lower limit of target V˙O2 zone (75% of V˙O2peak) recommended for the HII (p < 0.001). Exercise intensity during RPE-prescribed HIITs, determined as %V˙O2peak, was highly repeatable with intra-class correlations of 0.95 (95% CI 0.86– 0.99, p < 0.001). For cardiorespiratory adaptations from the first to the last session of HIIT, treadmill speed, treadmill grade, treadmill power, V˙O2HII, %V˙O2peak, and VE during HIIs were increased (all p < 0.05), while no difference was found for HR, %HRpeak and systolic blood pressure (all p > 0.05). V˙O2peak increased by an average of 9% from pre-CR to post-CR. No adverse events occurred.Conclusion: Our results demonstrate that HIIT can be effectively prescribed using RPE in MI patients during early outpatient CR. Participation in RPE-prescribed HIIT increases exercise workload and V˙O2 during exercise training without increased perception of effort or excessive increases in heart rate or blood pressure.

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Faculty Opinions recommendation of High-intensity interval training beneficial effects on body mass, blood pressure, and oxidative stress in diet-induced obesity in ovariectomized mice.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.726692682.793522525 ◽

2016 ◽

Author(s):

Jerome Fleg

Keyword(s):

Oxidative Stress ◽

Blood Pressure ◽

High Intensity ◽

Interval Training ◽

High Intensity Interval Training ◽

Beneficial Effects ◽

Diet Induced Obesity ◽

Ovariectomized Mice ◽

High Intensity Interval ◽

And Oxidative Stress

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The Effects of High-Intensity Interval Training vs. Moderate-Intensity Continuous Training on Heart Rate Variability in Physically Inactive Adults

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph15071508 ◽

2018 ◽

Vol 15 (7) ◽

pp. 1508 ◽

Cited By ~ 16

Author(s):

Abdullah Alansare ◽

Ken Alford ◽

Sukho Lee ◽

Tommie Church ◽

Hyun Jung

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

High Intensity ◽

Interval Training ◽

Moderate Intensity ◽

High Intensity Interval Training ◽

Continuous Training ◽

Significant Interaction Effect ◽

High Intensity Interval ◽

Physically Inactive

Physically inactive adults are prevalent worldwide. This study compared the effects of short-term high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) on heart rate variability (HRV) in physically inactive adults as a preliminary study. Thirteen physically inactive male adults (27.5 ± 3.80 years) were randomly assigned to HIIT (N = 7) or MICT (N = 6). The HIIT program consisted of 20 min of interval training with cycling to rest ratio of 10/50 s at ≥90% HRpeak, while the MICT program consisted of 40 min of continuous cycling at 60–75% HRpeak. Both groups completed eight sessions of training within two weeks. Time and frequency domains of HRV were measured for 20 min with Actiwave-Cardio monitor (CamNtech, UK). The number of R-R interval and inter-beat interval (IBI) were significantly improved (p < 0.05) in both HIIT and MICT programs following eight sessions of training. A significant interaction effect for group by time was found in the lnLF/HF ratio (p < 0.05) where it was only improved in the HIIT group from pre- to post-test. The HIIT program is superior to MICT in improving HRV in physically inactive adults. The HIIT program can be applied as a time-efficient program for improving cardiac-autoregulation.

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Low-Frequency High-Intensity Interval Training is an Effective Method to Improve Muscle Power in Lifelong Sedentary Aging Men: A Randomized Controlled Trial

Journal of the American Geriatrics Society ◽

10.1111/jgs.13863 ◽

2015 ◽

Vol 63 (11) ◽

pp. 2412-2413 ◽

Cited By ~ 8

Author(s):

Nicholas Sculthorpe ◽

Peter Herbert ◽

Fergal M. Grace

Keyword(s):

Randomized Controlled Trial ◽

High Intensity ◽

Muscle Power ◽

Controlled Trial ◽

Low Frequency ◽

Interval Training ◽

High Intensity Interval Training ◽

Randomized Controlled ◽

Aging Men ◽

High Intensity Interval

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Comparison of different volumes of high intensity interval training on cardiac autonomic function in sedentary young women

International Journal of Adolescent Medicine and Health ◽

10.1515/ijamh-2017-0073 ◽

2017 ◽

Vol 31 (6) ◽

Cited By ~ 6

Author(s):

Pooja Bhati ◽

Vishal Bansal ◽

Jamal Ali Moiz

Keyword(s):

Heart Rate ◽

Body Composition ◽

Muscle Strength ◽

Young Women ◽

High Intensity ◽

High Frequency ◽

Interval Training ◽

Treadmill Running ◽

High Intensity Interval Training ◽

High Intensity Interval

Abstract Purpose The present study was conducted to compare the effects of low volume of high intensity interval training (LVHIIT) and high volume of high intensity interval training (HVHIIT) on heart rate variability (HRV) as a primary outcome measure, and on maximum oxygen consumption (VO2max), body composition, and lower limb muscle strength as secondary outcome measures, in sedentary young women. Methods Thirty-six participants were recruited in this study. The LVHIIT group (n = 17) performed one 4-min bout of treadmill running at 85%–95% maximum heart rate (HRmax), followed by 3 min of recovery by running at 70% HRmax, three times per week for 6 weeks. The HVHIIT group (n = 15) performed four times 4-min bouts of treadmill running at 85%–95% HRmax, interspersed with 3-min of recovery by running at 70% HRmax, 3 times per week for 6 weeks. All criterion measures were measured before and after training in both the groups. Results Due to attrition of four cases, data of 32 participants was used for analysis. A significant increase in high frequency (HF) power (p < 0.001) and decrease in the ratio of low frequency to high frequency power (LF/HF) ratio (p < 0.001) in HRV parameters, was observed post-HVHIIT, whereas, these variables did not change significantly (HF: p = 0.92, LF/HF ratio: p = 0.52) in LVHIIT group. Nevertheless, both the interventions proved equally effective in improving aerobic capacity (VO2max), body composition, and muscle strength. Conclusion The study results suggest that both LVHIIT and HVHIIT are equally effective in improving VO2max, body composition, and muscle strength, in sedentary young women. However, HVHIIT induces parasympathetic dominance as well, as measured by HRV.

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Immediate and late acute effect of moderate continuous and high intensity interval training on hypertension stage I: case report

Brazilian Journal of Case Reports ◽

10.52600/2763-583x.bjcr.2021.1.4.50-56 ◽

2021 ◽

Vol 1 (4) ◽

pp. 50-56

Author(s):

Ana Luísa Freitas Siqueira ◽

Gabriela Souza Faria ◽

Pedro De Oliveira Neto ◽

Maria Paula Fabrício de Andrade ◽

Bruna Pereira Molina Cruz ◽

...

Keyword(s):

Blood Pressure ◽

Physical Training ◽

High Intensity ◽

Interval Training ◽

Hypotensive Effect ◽

Acute Effect ◽

High Intensity Interval Training ◽

Before And After ◽

High Intensity Interval ◽

Training Modalities

Physical training is used in the control of arterial hypertension (AH), especially in patients with higher levels of blood pressure (BP). However, there are still few studies on the effects of physical training on AH in less advanced stages of the disease. The aim of the present study was to assess the immediate and late acute effects of continuous moderate physical training (CMT) and high intensity interval training (HIIT) in patients with mild AH, and to assess which training method induces a greater hypotensive effect. A female patient, 43 years old, sedentary, diagnosed with mild AH (stage 1), taking Losartana 50 mg twice a day was studied. She underwent one CMT and one HIIT session, one week apart. BP measurements were taken before and after each session, as well as 24 hours before and after the sessions. After the physical training sessions, we observed a drop in the patient's BP that lasted up to 60 minutes, and a reduction in blood pressure levels on the day after the training. We conclude that both training modalities were efficient in reducing the BP of the patient with mild acute immediate and delayed hypertension.

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