High-intensity interval training and cardiac autonomic control in individuals with metabolic syndrome: A randomised trial

Ramos, Joyce S.; Dalleck, Lance C.; Borrani, Fabio; Beetham, Kassia S.; Mielke, Grégore Iven; Dias, Katrin A.; Wallen, Matthew P.; Keating, Shelley E.; Fassett, Robert G.; Coombes, Jeff S.

doi:10.1016/j.ijcard.2017.07.063

Cited by 29 publications

(37 citation statements)

References 47 publications

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“…For other HRV indices analyzed, including HFms 2 , LFun, HFun, and LF/ HF ratio, as well as the cardiovascular parameters SBP, DBP, and HR, statistically significant differences were not observed between the AITG and CG. Although the effects of the periodized AIT proposed by this study on the autonomic modulation of Mets individuals was not found in the literature (15,22) showed that the utilization of AIT in healthy subjects promoted improvement in parasympathetic and global modulation. Furthermore, beneficial effects on autonomic modulation in individuals submitted to AIT after percutaneous coronary intervention were also found by Munk and cols.…”

Section: Discussionmentioning

confidence: 64%

Effects of a new approach of aerobic interval training on cardiac autonomic modulation and cardiovascular parameters of metabolic syndrome subjects

Vanzella¹,

Linares²,

Miranda³

et al. 2019

Archives of Endocrinology and Metabolism

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Objective: To evaluate the effects of 16 weeks of periodized aerobic interval training (AIT) on cardiac autonomic modulation and cardiovascular parameters of metabolic syndrome (Mets) individuals. Subjects and methods: The sample was composed of 52 subjects with a diagnosis of Mets, allocated into two groups: AIT (AITG; n = 26) and control (CG; n = 26). The AITG was submitted to a periodized AIT program, over 16 weeks, while CG was not submitted to any training program. To evaluate the autonomic modulation and cardiovascular parameters in both groups, heart rate variability (HRV) indices, blood pressure (BP), and heart rate (HR) were measured at the beginning and end of the training. Results: Statistically significant differences were not observed in HFms 2 (high frequency in milisseconds), LFnu (low frequency in normality unit), HFnu (high frequency in normality unit), and LF/HF ratio indices, or in the cardiovascular parameters BP and HR when comparing the AITG with the CG. However, significant increases in rMSSD (root-means square differences of successive R-R intervals), LFms 2 (low frequency in milliseconds), and SDNN (standard deviation of normal to normal intervals) were observed in the AITG. Conclusion: Periodized AIT promoted positive effects on autonomic modulation of Mets subjects, characterized by an increase in the parasympathetic, sympathetic, and global modulation of this population. Additionally, cardiovascular parameter alterations were not observed in Mets subjects submitted to periodized AIT.

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Section: Discussionmentioning

confidence: 64%

Effects of a new approach of aerobic interval training on cardiac autonomic modulation and cardiovascular parameters of metabolic syndrome subjects

Vanzella¹,

Linares²,

Miranda³

et al. 2019

Archives of Endocrinology and Metabolism

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“…The intensity of the AIT and the HR recovery was determined though HRR [19] according to the formula: HRR = (HR max − HR rest ) × % training + HR rest . The maximal HR (HR max ) was obtained through the Karvonen formula (HR max = 220 − age (in years)) [22,23].…”

Section: Methodsmentioning

confidence: 99%

“…High-intensity aerobic interval training (AIT) is described as an important strategy to improve the autonomic modulation, which influences sympathetic-vagal balance and parasympathetic modulation increases in individuals with different conditions [16,17,18], such as MetS [19]. To our knowledge, however, there are no studies that report the effects of a periodized aerobic interval training (AIT) on geometric indices on this population.…”

Section: Introductionmentioning

confidence: 99%

Periodized Aerobic Interval Training Modifies Geometric Indices of Heart Rate Variability in Metabolic Syndrome

Dbb

Mpf

et al. 2019

Medicina

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Background: Metabolic syndrome (MetS) influences the autonomic modulation, increasing the risk of cardiovascular events, which demands the identification of effective treatments for this population. Considering this, the study has the objective of evaluating the effects of periodized aerobic interval training (AIT) on geometrical methods of heart rate variability (HRV) on individuals with MetS. Methods: 52 individuals with MetS were considered for analysis. They were divided into two groups: aerobic interval training group (AITG; n = 26) and control group (CG; n = 26). The AITG performed 16 weeks of periodized AIT. For HRV analysis, the heart rate was recorded beat-by-beat at the beginning and the end of the AIT program and geometrical methods were used for analysis. Results: significant increase was observed for triangular index (RRtri, −1.25 ± 0.58 vs. 1.41 ± 0.57), standard deviation of distances from diagonal to points (SD1, −0.13 ± 1.52 vs. 4.34 ± 1.49), and standard deviation of distances from points to lines (SD2, −2.14 ± 3.59 vs. 11.23 ± 3.52) on AITG compared to CG. Significant differences were not observed for triangular interpolation of normal heartbeats interval histogram (TINN, −4.05 ± 17.38 vs. 25.52 ± 17.03) and SD1/SD2 ratio (0.03 ± 0.02 vs. 0.00 ± 0.02). Qualitative analysis of the Poincaré plot identified increase on dispersion of both short and long-term intervals between successive heartbeats (RR interval) on AITG after the AIT program. Conclusion: geometric indices of HRV suggest an increase in cardiac autonomic modulation in individuals with MetS after 16 weeks of periodized AIT.

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“…However, the superiority of HIIT over MICT has been questioned, since many studies have shown similar results in the different physiological parameters evaluated, especially regarding cardiorespiratory fitness (VO2peak and VO2max), cardiovascular autonomic control, and cardiac morpho functionality [11][12][13][14]. The cause of conflicting results observed by different studies may be related to standardization, application, and comparison of the two protocols.…”

Section: High-intensity Interval Training Over Moderate-intensity Conmentioning

confidence: 99%

Should Heartbeats/Training Session Be Considered When Comparing the Cardiovascular Benefits of High-Intensity Interval Aerobic and Moderate-Intensity Continuous Training? A Critical Appraisal

et al. 2020

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The prescription of physical training as a therapeutic measure in the treatment and control of chronic degenerative diseases, mainly cardiovascular disease and metabolic disease, is an increasingly used clinical approach, often preceding the pharmacological prescription. Despite the advances in exercise physiology and cardio functional performance in recent decades, the main challenge is to identify the most appropriate modality, intensity, and training volume for each pathophysiological situation. In this case, the superiority of high-intensity interval training (HIIT) over moderate-intensity continuous training (MICT) has been questioned, since many studies have shown similar results in the different physiological parameters evaluated, especially regarding cardiorespiratory fitness, cardiovascular autonomic control, and cardiac morpho functionality. The cause of conflicting results observed by different studies may be related to standardization, application, and comparison of the two protocols. HIIT would have a higher number of heartbeats compared to MICT, when maintaining high heart rate is disregarded. In this since, our hypothesis for the greatest gains in cardiorespiratory fitness and in the autonomic and cardiovascular adaptations promoted by HIIT is based on the higher volume of training performed as a function of the higher number of heartbeats per unit of time, since the intermittence was calculated based on a percentage of maximum heart rate or reserve heart rate. Nevertheless, the intermittency between the established heart rate percentages is not necessarily accompanied by the intermittent heart rate. Therefore, considering and matching the number of heartbeats performed per training session in both models seems to be a more appropriate way to compare the two training protocols.

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High-intensity interval training and cardiac autonomic control in individuals with metabolic syndrome: A randomised trial

Cited by 29 publications

References 47 publications

Effects of a new approach of aerobic interval training on cardiac autonomic modulation and cardiovascular parameters of metabolic syndrome subjects

Effects of a new approach of aerobic interval training on cardiac autonomic modulation and cardiovascular parameters of metabolic syndrome subjects

Periodized Aerobic Interval Training Modifies Geometric Indices of Heart Rate Variability in Metabolic Syndrome

Should Heartbeats/Training Session Be Considered When Comparing the Cardiovascular Benefits of High-Intensity Interval Aerobic and Moderate-Intensity Continuous Training? A Critical Appraisal

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