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Effects of High-Intensity Interval Training Versus Moderate-Intensity Continuous Training On Blood Pressure in Adults with Pre- to Established Hypertension: A Systematic Review and Meta-Analysis of Randomized Trials.
Sports Med 2018; 48(9):2127-2142SM

Abstract

BACKGROUND

Aerobic exercise reduces blood pressure (BP), but it is unknown whether a high-intensity training approach can elicit a greater BP reduction in populations with elevated BP. This systematic review compared the efficacy of high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) for reducing BP in adults with pre- to established hypertension.

METHODS

Five electronic databases (MEDLINE, EMBASE, CENTRAL, PEDro, and SPORTDiscus) were searched for randomized trials comparing the chronic effects of HIIT versus MICT on BP in individuals with resting systolic BP ≥ 130 mmHg and/or diastolic BP ≥ 85 mmHg and/or under antihypertensive medication. Random-effects modelling was used to compare changes from pre- to post-intervention in resting and ambulatory BP between HIIT and MICT. Changes from pre- to post-intervention in maximal oxygen uptake ([Formula: see text]O2max) between HIIT and MICT were also meta-analyzed. Data were reported as weighted mean difference (MD) and 95% confidence interval (CI).

RESULTS

Ambulatory BP was excluded from the meta-analysis due to the limited number of studies (two studies). Comparing changes from pre- to post-intervention, no differences in resting systolic BP (MD - 0.22 mmHg [CI 95%, - 5.36 to 4.92], p = 0.93, I2 = 53%) and diastolic BP (MD - 0.38 mmHg [CI 95%, - 3.31 to 2.54], p = 0.74, I2 = 0%) were found between HIIT and MICT (seven studies; 164 participants). HIIT improved [Formula: see text]O2max to a greater magnitude than MICT (MD 2.13 ml/kg/min [CI 95%, 1.00 to 3.27], p < 0.01, I2 = 41%) with similar completion rates of the intervention and attendance at the exercise training sessions (nine studies; 245 participants). Limited data were available to compare the incidence of adverse events between HIIT and MICT.

CONCLUSION

HIIT and MICT provided comparable reductions in resting BP in adults with pre- to established hypertension. HIIT was associated with greater improvements in [Formula: see text]O2max when compared to MICT. Future randomized trials should investigate the efficacy of HIIT versus MICT for reducing ambulatory BP in adults with pre- to established hypertension.

REGISTRATION

PROSPERO registration (2016: CRD42016041885).

Authors+Show Affiliations

Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil. ecc@ufrnet.br.Health, Leisure & Human Performance Research Institute, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada. Institute of Cardiovascular Sciences, St-Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada.Health, Leisure & Human Performance Research Institute, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada. Institute of Cardiovascular Sciences, St-Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada.Health, Leisure & Human Performance Research Institute, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada. Institute of Cardiovascular Sciences, St-Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada.Institute of Cardiovascular Sciences, St-Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada.National Institute of Science and Technology for Health Technology Assessment (IATS)-CNPq, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.University of Manitoba Libraries, Winnipeg, MB, Canada.Health, Leisure & Human Performance Research Institute, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada. Institute of Cardiovascular Sciences, St-Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada.

Pub Type(s)

Journal Article
Review
Systematic Review

Language

eng

PubMed ID

29949110

Citation

Costa, Eduardo Caldas, et al. "Effects of High-Intensity Interval Training Versus Moderate-Intensity Continuous Training On Blood Pressure in Adults With Pre- to Established Hypertension: a Systematic Review and Meta-Analysis of Randomized Trials." Sports Medicine (Auckland, N.Z.), vol. 48, no. 9, 2018, pp. 2127-2142.
Costa EC, Hay JL, Kehler DS, et al. Effects of High-Intensity Interval Training Versus Moderate-Intensity Continuous Training On Blood Pressure in Adults with Pre- to Established Hypertension: A Systematic Review and Meta-Analysis of Randomized Trials. Sports Med. 2018;48(9):2127-2142.
Costa, E. C., Hay, J. L., Kehler, D. S., Boreskie, K. F., Arora, R. C., Umpierre, D., ... Duhamel, T. A. (2018). Effects of High-Intensity Interval Training Versus Moderate-Intensity Continuous Training On Blood Pressure in Adults with Pre- to Established Hypertension: A Systematic Review and Meta-Analysis of Randomized Trials. Sports Medicine (Auckland, N.Z.), 48(9), pp. 2127-2142. doi:10.1007/s40279-018-0944-y.
Costa EC, et al. Effects of High-Intensity Interval Training Versus Moderate-Intensity Continuous Training On Blood Pressure in Adults With Pre- to Established Hypertension: a Systematic Review and Meta-Analysis of Randomized Trials. Sports Med. 2018;48(9):2127-2142. PubMed PMID: 29949110.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of High-Intensity Interval Training Versus Moderate-Intensity Continuous Training On Blood Pressure in Adults with Pre- to Established Hypertension: A Systematic Review and Meta-Analysis of Randomized Trials. AU - Costa,Eduardo Caldas, AU - Hay,Jacqueline L, AU - Kehler,Dustin S, AU - Boreskie,Kevin F, AU - Arora,Rakesh C, AU - Umpierre,Daniel, AU - Szwajcer,Andrea, AU - Duhamel,Todd A, PY - 2018/6/28/pubmed PY - 2018/11/20/medline PY - 2018/6/28/entrez SP - 2127 EP - 2142 JF - Sports medicine (Auckland, N.Z.) JO - Sports Med VL - 48 IS - 9 N2 - BACKGROUND: Aerobic exercise reduces blood pressure (BP), but it is unknown whether a high-intensity training approach can elicit a greater BP reduction in populations with elevated BP. This systematic review compared the efficacy of high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) for reducing BP in adults with pre- to established hypertension. METHODS: Five electronic databases (MEDLINE, EMBASE, CENTRAL, PEDro, and SPORTDiscus) were searched for randomized trials comparing the chronic effects of HIIT versus MICT on BP in individuals with resting systolic BP ≥ 130 mmHg and/or diastolic BP ≥ 85 mmHg and/or under antihypertensive medication. Random-effects modelling was used to compare changes from pre- to post-intervention in resting and ambulatory BP between HIIT and MICT. Changes from pre- to post-intervention in maximal oxygen uptake ([Formula: see text]O2max) between HIIT and MICT were also meta-analyzed. Data were reported as weighted mean difference (MD) and 95% confidence interval (CI). RESULTS: Ambulatory BP was excluded from the meta-analysis due to the limited number of studies (two studies). Comparing changes from pre- to post-intervention, no differences in resting systolic BP (MD - 0.22 mmHg [CI 95%, - 5.36 to 4.92], p = 0.93, I2 = 53%) and diastolic BP (MD - 0.38 mmHg [CI 95%, - 3.31 to 2.54], p = 0.74, I2 = 0%) were found between HIIT and MICT (seven studies; 164 participants). HIIT improved [Formula: see text]O2max to a greater magnitude than MICT (MD 2.13 ml/kg/min [CI 95%, 1.00 to 3.27], p < 0.01, I2 = 41%) with similar completion rates of the intervention and attendance at the exercise training sessions (nine studies; 245 participants). Limited data were available to compare the incidence of adverse events between HIIT and MICT. CONCLUSION: HIIT and MICT provided comparable reductions in resting BP in adults with pre- to established hypertension. HIIT was associated with greater improvements in [Formula: see text]O2max when compared to MICT. Future randomized trials should investigate the efficacy of HIIT versus MICT for reducing ambulatory BP in adults with pre- to established hypertension. REGISTRATION: PROSPERO registration (2016: CRD42016041885). SN - 1179-2035 UR - https://www.unboundmedicine.com/medline/citation/29949110/Effects_of_High_Intensity_Interval_Training_Versus_Moderate_Intensity_Continuous_Training_On_Blood_Pressure_in_Adults_with_Pre__to_Established_Hypertension:_A_Systematic_Review_and_Meta_Analysis_of_Randomized_Trials_ L2 - https://dx.doi.org/10.1007/s40279-018-0944-y DB - PRIME DP - Unbound Medicine ER -