Acute effects of mixed circuit training on hemodynamic and cardiac autonomic control in chronic hemiparetic stroke patients: A randomized controlled crossover trial

Fonseca, Guilherme F.; Midgley, Adrian W.; Billinger, Sandra A.; Michalski, André C.; Costa, Victor A. B.; Monteiro, Walace David; Farinatti, Paulo; Cunha, Felipe

doi:10.3389/fphys.2022.902903

Cited by 3 publications

(3 citation statements)

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“…Although sympathoinhibition likely occurs postexercise, its role in prolonged BP reductions is unclear. Primary trials across diverse populations reported increased sympathetic and/or reduced vagal activity with PEH [15,18,19,[55][56][57][58][59][60]. Recent meta-analyses observed parallel increases in sympathetic and/or decreases in parasympathetic modulation after both aerobic and resistance exercise, contrary to expectations, irrespective of resting BP [52,35].…”

Section: Potential Central Mechanisms Of Postexercise Hypotensionmentioning

confidence: 93%

Central and peripheral mechanisms underlying postexercise hypotension: a scoping review

Brasil,

Silva,

Pescatello

et al. 2024

Journal of Hypertension

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Blood pressure (BP) reduction occurs after a single bout of exercise, referred to as postexercise hypotension (PEH). The clinical importance of PEH has been advocated owing to its potential contribution to chronic BP lowering, and as a predictor of responders to exercise training as an antihypertensive therapy. However, the mechanisms underlying PEH have not been well defined. This study undertook a scoping review of research on PEH mechanisms, as disclosed in literature reviews. We searched the PubMed, Web of Science, Scopus, Cumulated Index to Nursing and Allied Health Literature (CINAHL), Cochrane Library, and Sport Discus databases until January 2023 to locate 21 reviews – 13 narrative, four systematic with 102 primary trials, and four meta-analyses with 75 primary trials involving 1566 participants. We classified PEH mechanisms according to major physiological systems, as central (autonomic nervous system, baroreflex, cardiac) or peripheral (vascular, hemodynamic, humoral, and renal). In general, PEH has been related to changes in autonomic control leading to reduced cardiac output and/or sustained vasodilation. However, the role of autonomic control in eliciting PEH has been challenged in favor of local vasodilator factors. The contribution of secondary physiological outcomes to changes in cardiac output and/or vascular resistance during PEH remains unclear, especially by exercise modality and population (normal vs. elevated BP, young vs. older adults). Further research adopting integrated approaches to investigate the potential mechanisms of PEH is warranted, particularly when the magnitude and duration of BP reductions are clinically relevant. (PROSPERO CRD42021256569).

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Section: Potential Central Mechanisms Of Postexercise Hypotensionmentioning

confidence: 93%

Central and peripheral mechanisms underlying postexercise hypotension: a scoping review

Brasil,

Silva,

Pescatello

et al. 2024

Journal of Hypertension

Self Cite

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“…AUC was calculated by the trapezoidal method similar to mentioned in other studies. (27, 28) We analysed the area by the height and width of the LF and HF peaks across PSD. For the time domain analysis, we calculated BTB MAP CoV using the equation:(29)…”

Section: Autonomic Response and Variability Assessmentmentioning

confidence: 99%

Blood Pressure Variability and Autonomic Response to an Acute Bout of High Intensity Interval Exercise in Healthy Young Adults

Waghmare,

Whitaker-Hilbig,

Chertoff

et al. 2024

Preprint

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Autonomic nervous system (ANS) activity causes acute variations in the blood pressure. Blood pressure responds to high intensity interval exercise (HIIE) repeatedly during alternating intensities, however, ANS response to the changing intensities of HIIE is unknown. We characterized the response of beat-to-beat blood pressure variability (BTB BPV) to an acute bout of HIIE using coefficient of variation (CoV) and spectral low frequency [LF], and high frequency [HF] domains. Our hypotheses were mean arterial pressure BTB BPV, would increase during 1) high intensity and 2) active recovery of HIIE compared to baseline (BL). BTB BPV would reduce during 1) cool down 2) post HIIE 3) 30 minutes post HIIE compared to BL in young adults. HIIE included bouts of 1-minute high-intensity separated by 1-minute recovery (approx 70% and 10% estimated Wattmax) for total of 10 minutes on a recumbent stepper. A secondary analysis was performed using twenty-one datasets of young individuals (age 25[SD 1.5], 48% female). During high intensity, LF and HF increased compared to BL (p < 0.05) indicating increased sympathetic activity and breathing. During active recovery, LF and HF remained elevated above BL and were greater than during high intensity (p = 0.02). Sympathetic activity reduced back to BL immediately post HIIE but returned to being higher than BL at 30 minutes after HIIE (p=0.001). BTB BPV CoV also increased during HIIE compared to BL (p<0.05). Results suggest that young healthy individuals have increased BTB BPV during HIIE suggesting cardiovascular system responds to ANS fluctuations during changing exercise intensity.

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“…For absolute BTB BPV we took the sum of PSD values within the LF and HF bands. AUC was calculated by the trapezoidal method similar to mentioned in other studies (Fonseca et al., 2022; Pruessner et al., 2003). We analyzed the area by the height and width of the LF and HF peaks across PSD.…”

Section: Autonomic Response and Variability Assessmentmentioning

confidence: 99%

Blood pressure and heart rate variability to assess autonomic response to an acute bout of high intensity interval exercise in healthy young adults

Waghmare,

Whitaker‐Hilbig,

Chertoff

et al. 2024

Physiological Reports

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Autonomic nervous system (ANS) activity causes acute variations in blood pressure (BP) and heart rate (HR). These systems are challenged during high intensity interval exercise (HIIE). However, BP variability (BPV) and HR variability (HRV) response to HIIE is unknown. We characterized BPV and HRV during an acute HIIE bout using spectral low frequency [LF] and high frequency [HF] domains. We hypothesized that BPV would increase and HRV would decrease during high‐intensity and active‐recovery of HIIE compared to baseline [BL] and BPV would reduce and HRV would increase during cool down, post‐HIIE, and 30 min post‐HIIE compared to BL. HIIE involved 10 min of alternating high‐intensity and active‐recovery (approximately 70% and 10% of Wattmax) on a recumbent stepper. We did a secondary analysis on 23 datasets. The participants were 25 ± 1.5 years, 48% females. Our results showed high‐intensity BPV LF was not significantly different from BL while HF increased. HRV LF and HF decreased compared to BL. During active‐recovery, LF and HF for BPV and HRV increased greater than high‐intensity. HRV LF and HF returned to BL after 30 min of recovery, whereas BPV HF was higher compared to BL. The rapid switching during HIIE uniquely modulates cardiovascular and ANS.

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Acute effects of mixed circuit training on hemodynamic and cardiac autonomic control in chronic hemiparetic stroke patients: A randomized controlled crossover trial

Cited by 3 publications

References 56 publications

Central and peripheral mechanisms underlying postexercise hypotension: a scoping review

Central and peripheral mechanisms underlying postexercise hypotension: a scoping review

Blood Pressure Variability and Autonomic Response to an Acute Bout of High Intensity Interval Exercise in Healthy Young Adults

Blood pressure and heart rate variability to assess autonomic response to an acute bout of high intensity interval exercise in healthy young adults

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