Document Type : Review Article

Authors

1 MSc of Exercise Physiology, Department of Sport Sciences, Faculty of Education and Psychology, Azarbaijan Shahid Madani University, Tabriz, Iran

2 Assistant Professor of Exercise Physiology, Department of Sport Sciences, Faculty of Education and Psychology, Azarbaijan Shahid Madani University, Tabriz, Iran

3 Associate Professor of Exercise Physiology, Department of Sport Sciences, Faculty of Education and Psychology, Azarbaijan Shahid Madani University, Tabriz, Iran

Abstract

Aim: was to determine the effect of exercise training, higher cardiopulmonary fitness and/or physical activity history on middle cerebral artery blood flow velocity (MCAv) in healthy subjects.
Methodology: Interventions investigated on healthy adults published in peer-reviewed journals up to July 2020 were searched in PubMed, Google Scholar, SID and Magiran databases.
Totally, 14 studies (including on 21 interventions) comprised from those with pre- and post-intervention design (7 studies) and others with ex post facto design (7 studies) fulfilled the eligibility criteria. The random effects model was used for analysis of the data reported as Difference in Means using CMA2 software. Moreover, correlations between the effect sizes of exercise training or physical fitness level on MCAv with subjects’ age, maximal oxygen consumption, mean arterial pressure, body weight, body mass index, resting heart rate, end-tidal carbon dioxide partial pressure and also with the duration of exercise training were assessed using simple random model meta-regression.
Results: Exercise training causes a non-significant increase of 0.569 cm/s in MCAv (p= 0.60) regardless of the subjects’ characteristics as well as the number of training weeks. Additionally, no significant correlations were observed in Meta regression assessments (p>0.05).
Conclusion: At present it is not possible to rely on the effects of exercise training, higher cardiopulmonary fitness and/or subjects’ exercise history to improve cerebral blood flow or prevent its reduction. However, more clinical trials are still warranted to be done in this area.

Keywords

  1. Attwell D, Buchan AM, Charpak S, Lauritzen M, MacVicar BA, Newman EA. Glial and neuronal control of brain blood flow. Nature. 2010;468(7321):232-43.
  2. Willie C, Colino F, Bailey D, Tzeng Y, Binsted G, Jones L, et al. Utility of transcranial Doppler ultrasound for the integrative assessment of cerebrovascular function. Journal of Neuroscience Methods. 2011;196(2):221-37.
  3. Willie CK, Tzeng YC, Fisher JA, Ainslie PN. Integrative regulation of human brain blood flow. The Journal of Physiology. 2014;592(5):841-59.
  4. Serrador J, Picot PA, Rutt BK, Shoemaker JK, Bondar RL. MRI measures of middle cerebral artery diameter in conscious humans during simulated orthostasis. Stroke. 2000; 31:1672-8.
  5. Peebles K, Celi L, McGrattan K, Murrell C, Thomas K, Ainslie PN. Human cerebrovascular and ventilatory CO2 reactivity to end‐tidal, arterial and internal jugular vein PCO2. The Journal of Physiology. 2007;584(1):347-57.
  6. Bélanger M, Allaman I, Magistretti PJ. Brain energy metabolism: focus on astrocyte-neuron metabolic cooperation. Cell METABOLISM. 2011;14(6):724-38.
  7. Liu TT, Brown GG. Measurement of cerebral perfusion with arterial spin labeling: Part 1. Methods. Journal of the International Neuropsychological Society. 2007;13(3):517-25.
  8. Tzeng Y-C, Ainslie PN. Blood pressure regulation IX: cerebral autoregulation under blood pressure challenges. Eur J Appl Physiol. 2014;114(3):545-59.
  9. Panerai RB. Complexity of the human cerebral circulation. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 2009;367(1892):1319-36.
  10. Ainslie PN, Cotter JD, George KP, Lucas S, Murrell C, Shave R, et al. Elevation in cerebral blood flow velocity with aerobic fitness throughout healthy human ageing. The Journal of Physiology. 2008;586(16):4005-10.
  11. Beason-Held LL, Moghekar A, Zonderman AB, Kraut MA, Resnick SM. Longitudinal changes in cerebral blood flow in the older hypertensive brain. Stroke. 2007;38(6):1766-73.
  12. Stoquart-ElSankari S, Balédent O, Gondry-Jouet C, Makki M, Godefroy O, Meyer M-E. Aging effects on cerebral blood and cerebrospinal fluid flows. Journal of Cerebral Blood Flow & Metabolism. 2007;27(9):1563-72.
  13. De la Torre J. Critically attained threshold of cerebral hypoperfusion: the CATCH hypothesis of Alzheimer’s pathogenesis. Neurobiology of Aging. 2000;21(2):331-42.
  14. Toda N, Ayajiki K, Okamura T. Cerebral blood flow regulation by nitric oxide in neurological disorders. Canadian Journal of Physiology and Pharmacology. 2009;87(8):581-94.
  15. Rogers RL, Meyer JS, Mortel KF. After reaching retirement age physical activity sustains cerebral perfusion and cognition. Journal of the American Geriatrics Society. 1990;38(2):123-8.
  16. Akazawa N, Tanahashi K, Kosaki K, Ra SG, Matsubara T, Choi Y, et al. Aerobic exercise training enhances cerebrovascular pulsatility response to acute aerobic exercise in older adults. Physiological Reports. 2018;6(8): e13681.
  17. Bailey DM, Marley CJ, Brugniaux JV, Hodson D, New KJ, Ogoh S, et al. Elevated aerobic fitness sustained throughout the adult lifespan is associated with improved cerebral hemodynamics. Stroke. 2013;44(11):3235-8.
  18. Brown AD, McMorris CA, Longman RS, Leigh R, Hill MD, Friedenreich CM, et al. Effects of cardiorespiratory fitness and cerebral blood flow on cognitive outcomes in older women. Neurobiology of Aging. 2010;31(12):2047-57.
  19. Akazawa N, Choi Y, Miyaki A, Sugawara J, Ajisaka R, Maeda S. Aerobic exercise training increases cerebral blood flow in postmenopausal women. Artery Research. 2012;6(3):124-9.
  20. Murrell CJ, Cotter JD, Thomas KN, Lucas SJ, Williams MJ, Ainslie PN. Cerebral blood flow and cerebrovascular reactivity at rest and during sub-maximal exercise: effect of age and 12-week exercise training. Age. 2013;35(3):905-20.
  21. Tomoto T, Sugawara J, Nogami Y, Aonuma K, Maeda S. The influence of central arterial compliance on cerebrovascular hemodynamics: insights from endurance training intervention. Journal of Applied Physiology. 2015;119(5):445-51.
  22. Endres M, Gertz K, Lindauer U, Katchanov J, Schultze J, Schröck H, et al. Mechanisms of stroke protection by physical activity. Annals of Neurology: Official Journal of the American Neurological Association and the Child Neurology Society. 2003;54(5):582-90.
  23. Gertz K, Priller J, Kronenberg G, Fink KB, Winter B, Schröck H, et al. Physical activity improves long-term stroke outcome via endothelial nitric oxide synthase–dependent augmentation of neovascularization and cerebral blood flow. Circulation Research. 2006;99(10):1132-40.
  24. Viboolvorakul S, Patumraj S. Exercise training could improve age-related changes in cerebral blood flow and capillary vascularity through the upregulation of VEGF and eNOS. BioMed Research International. 2014;2014.
  25. Zhu Y-S, Tarumi T, Tseng BY, Palmer DM, Levine BD, Zhang R. Cerebral vasomotor reactivity during hypo-and hypercapnia in sedentary elderly and Masters athletes. Journal of Cerebral Blood Flow & Metabolism. 2013;33(8):1190-6.
  26. Brugniaux JV, Marley CJ, Hodson DA, New KJ, Bailey DM. Acute exercise stress reveals cerebrovascular benefits associated with moderate gains in cardiorespiratory fitness. Journal of Cerebral Blood Flow & Metabolism. 2014;34(12):1873-6.
  27. Drapeau A, Labrecque L, Imhoff S, Paquette M, Le Blanc O, Malenfant S, et al. Dynamic cerebral autoregulation of endurance-trained men following 6 weeks of high-intensity interval training to exhaustion. BioRxiv. 2019:605667.
  28. Alfini AJ, Weiss LR, Nielson KA, Verber MD, Smith JC. Resting cerebral blood flow after exercise training in mild cognitive impairment. Journal of Alzheimer's Disease. 2019;67(2):671-84.
  29. Ivey FM, Ryan AS, Hafer-Macko CE, Macko RF. Improved cerebral vasomotor reactivity after exercise training in hemiparetic stroke survivors. Stroke. 2011;42(7):1994-2000.
  30. Lewis N, Gelinas JC, Ainslie PN, Smirl JD, Agar G, Melzer B, et al. Cerebrovascular function in patients with chronic obstructive pulmonary disease: the impact of exercise training. American Journal of Physiology-Heart and Circulatory Physiology. 2019;316(2):H380-H91.
  31. Scarmeas N, Zarahn E, Anderson KE, Habeck CG, Hilton J, Flynn J, et al. Association of life activities with cerebral blood flow in Alzheimer disease: implications for the cognitive reserve hypothesis. Archives of Neurology. 2003;60(3):359-65.
  32. Cohen DL, Wintering N, Tolles V, Townsend RR, Farrar JT, Galantino ML, et al. Cerebral blood flow effects of yoga training: preliminary evaluation of 4 cases. The Journal of Alternative and Complementary Medicine. 2009;15(1):9-14.
  33. Cho S-Y, So W-Y, Roh H-T. The effects of taekwondo training on peripheral neuroplasticity-related growth factors, cerebral blood flow velocity, and cognitive functions in healthy children: A randomized controlled trial. Int J Environ Res Public Health. 2017;14(5):454.
  34. Bailey TG, Cable NT, Miller G, Sprung V, Low D, Jones H. Repeated warm water immersion induces similar cerebrovascular adaptations to 8 weeks of moderate-intensity exercise training in females. Int J Sports Med. 2016;37(10):757-65.
  35. Mohammadpour Z, Alamdari KA, Zarneshan A. Effect of regular aquatic exercises on blood pressure in Hypertensive subjects: a meta-analysis. Research in Sport Medicine Technology. 2021;18(20):59-76. (In Persian).
  36. Cornelissen VA, Smart NA. Exercise training for blood pressure: a systematic review and meta‐analysis. Journal of the American Heart Association. 2013;2(1):e004473.
  37. Tomoto T, Imai T, Ogoh S, Maeda S, Sugawara J. Relationship between aortic compliance and impact of cerebral blood flow fluctuation to dynamic orthostatic challenge in endurance athletes. Frontiers in Physiology. 2018; 9:25.
  38. Flück D, Braz ID, Keiser S, Hüppin F, Haider T, Hilty MP, et al. Age, aerobic fitness, and cerebral perfusion during exercise: role of carbon dioxide. American Journal of Physiology-Heart and Circulatory Physiology. 2014;307(4):H515-H23.
  39. Marley CJ, Brugniaux JV, Davis D, Calverley TA, Owens TS, Stacey BS, et al. Long-term exercise confers equivalent neuroprotection in females despite lower cardiorespiratory fitness. Neuroscience. 2020; 427:58-63.
  40. Perry BG, Cotter JD, Korad S, Lark S, Labrecque L, Brassard P, et al. Implications of habitual endurance and resistance exercise for dynamic cerebral autoregulation. Experimental Physiology. 2019;104(12):1780-9.
  41. Vicente-Campos D, Mora J, Castro-Piñero J, González-Montesinos JL, Conde-Caveda J, Chicharro JL. Impact of a physical activity program on cerebral vasoreactivity in sedentary elderly people. J Sports Med Phys Fitness. 2012;52(5):537-44.
  42. Wen H, Wang L. Reducing effect of aerobic exercise on blood pressure of essential hypertensive patients: a meta-analysis. Medicine. 2017;96(11).
  43. Rohani H, Azali Alamdari K, Helali Zadeh M. Effect of aerobic training on overall metabolic risk and indices levels in patients with metabolic syndrome: a meta-analysis study. Sport Physiology. 2016;8(31):17-44. (In Persian).
  44. Khalafi M, Alamdari KA, Symonds ME, Nobari H, Carlos-Vivas J. Impact of acute exercise on immediate and following early post-exercise FGF-21 concentration in adults: Systematic review and meta-analysis. J Hormones. 2021;20(1):23-33.
  45. Rohani H, Azali-Alamdari K. Effect of Aerobic Training on Blood Pressure in Hypertensive Patients: A Meta-Analysis Study. Journal of Applied Exercise Physiology. 2019;15(30):77-102. [In Persian].
  46. Thomas BP, Yezhuvath US, Tseng BY, Liu P, Levine BD, Zhang R, et al. Life‐long aerobic exercise preserved baseline cerebral blood flow but reduced vascular reactivity to CO2. Journal of Magnetic Resonance Imaging. 2013;38(5):1177-83.
  47. Ruitenberg A, den Heijer T, Bakker SL, van Swieten JC, Koudstaal PJ, Hofman A, et al. Cerebral hypoperfusion and clinical onset of dementia: the Rotterdam Study. Annals of Neurology: Official Journal of the American Neurological Association and the Child Neurology Society. 2005;57(6):789-94.
  48. Farhoudi M, Kermani SN, Sadeghi-Bazargani H. Relatively higher norms of blood flow velocity of major intracranial arteries in North-West Iran. BMC Research Notes. 2010;3(1):174.
  49. Joris PJ, Mensink RP, Adam TC, Liu TT. Cerebral blood flow measurements in adults: a review on the effects of dietary factors and exercise. Nutrients. 2018;10(5):530.
  50. Koller A, Kaley G. Endothelial regulation of wall shear stress and blood flow in skeletal muscle microcirculation. American Journal of Physiology-Heart and Circulatory Physiology. 1991;260(3):H862-H8.
  51. Lelbach A, Koller A. Mechanisms underlying exercise-induced modulation of hypertension. J Hypertens Res. 2017;3(2):35-43.

 

  1. DeSouza CA, Shapiro LF, Clevenger CM, Dinenno FA, Monahan KD, Tanaka H, et al. Regular aerobic exercise prevents and restores age-related declines in endothelium-dependent vasodilation in healthy men. Circulation. 2000;102(12):1351-7.
  2. Yoshizawa M, Maeda S, Miyaki A, Misono M, Choi Y, Shimojo N, et al. Additive beneficial effects of lactotripeptides intake with regular exercise on endothelium-dependent dilatation in postmenopausal women. American Journal of Hypertension. 2010;23(4):368-72.
  3. Kielstein JT, Donnerstag F, Gasper S, Menne J, Kielstein A, Martens-Lobenhoffer J, et al. ADMA increases arterial stiffness and decreases cerebral blood flow in humans. Stroke. 2006;37(8):2024-9.
  4. Brauer P, Kochs E, Werner C, Bloom M, Policare R, Pentheny S, et al. Correlation of transcranial Doppler sonography mean flow velocity with cerebral blood flow in patients with intracranial pathology. Journal of Neurosurgical Anesthesiology. 1998;10(2):80-5.
  5. Cipolla MJ. The cerebral circulation. Integrated Systems Physiology: From Molecule to Function. 2009;1(1):1-59.
  6. Tadibi V, Cheraghi S. Comparing serum orexin-a levels between affected and non-affected people to acute mountain sickness. Journal of Applied Health Studies in Sport Physiology. 2020;7(1):91-6. (In Persian).
  7. Babaei P, Azali Alamdari K, Soltani Tehrani B, Damirchi A. Effect of six weeks of endurance exercise and following detraining on serum brain derived neurotrophic factor and memory performance in middle aged males with metabolic syndrome. J Sports Med Phys Fitness. 2013;53(4):437-43.
  8. Williams J, Babb T. Differences between estimates and measured Pa CO 2 during rest and exercise in older subjects. Journal of Applied Physiology. 1997;83(1):312-6.
  9. Marsden K, Haykowsky M, Smirl J, Jones H, Nelson M, Altamirano-Diaz LA, et al. Aging blunts hyperventilation-induced hypocapnia and reduction in cerebral blood flow velocity during maximal exercise. Age. 2012;34(3):725-35.
  10. Coverdale NS, Badrov MB, Shoemaker JK. Impact of age on cerebrovascular dilation versus reactivity to hypercapnia. Journal of Cerebral Blood Flow & Metabolism. 2017;37(1):344-55.
  11. Coverdale NS, Lalande S, Perrotta A, Shoemaker JK. Heterogeneous patterns of vasoreactivity in the middle cerebral and internal carotid arteries. American Journal of Physiology-Heart and Circulatory Physiology. 2015;308(9):H1030-H8.
  12. Coverdale NS, Gati JS, Opalevych O, Perrotta A, Shoemaker JK. Cerebral blood flow velocity underestimates cerebral blood flow during modest hypercapnia and hypocapnia. Journal of Applied Physiology. 2014;117(10):1090-6.
  13. Verbree J, Bronzwaer A, van Buchem MA, Daemen MJ, van Lieshout JJ, van Osch MJ. Middle cerebral artery diameter changes during rhythmic handgrip exercise in humans. Journal of Cerebral Blood Flow & Metabolism. 2017;37(8):2921-7.

 

  1. Verbree J, Bronzwaer A-SG, Ghariq E, Versluis MJ, Daemen MJ, van Buchem MA, et al. Assessment of middle cerebral artery diameter during hypocapnia and hypercapnia in humans using ultra-high-field MRI. Journal of Applied Physiology. 2014;117(10):1084-9.