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The Journal of Sports Medicine and Physical Fitness 2020 November;60(11):1477-85

DOI: 10.23736/S0022-4707.20.10956-3


language: English

Exercise with blood flow restriction as a new tool for health improvement in hypertensive elderly women: the role of purinergic enzymes

Aline MÂNICA 1, Clodoaldo A. DE SÁ 2, Angélica BARILI 2, Vanessa S. CORRALO 2, Beatriz S. BONADIMAN 3, Gabriela G. OLIVEIRA 4, Margarete D. BAGATINI 4, Andréia M. CARDOSO 4

1 Department of Molecular Biology and Biochemistry, Federal University of Santa Maria, Santa Maria, Brazil; 2 Health Science Postgraduate Program, Unochapecó University, Servidão Anjo da Chapecó, Brazil; 3 Graduate Program in Biochemistry, Federal University of Santa Catarina, Florianópolis, Brazil; 4 Graduate Program in Biomedical Sciences, Campus Chapecó, Federal University of Fronteira Sul, Chapecó, Brazil

BACKGROUND: Purinergic signaling has been considered one of the mechanisms by which exercise exerts its antihypertensive effects; and research on the effects of blow flow restriction (BFR) exercise has increased as an alternative for elderly hypertensive patients. We analyzed the acute responses of NTPDase and adenosine deaminase (ADA) activities to low intensity aerobic exercise (LIAE) with BFR in lymphocytes of hypertensive elderly women.
METHODS: Sixteen hypertensive elderly women performed three exercise protocols: LIAE; high intensity aerobic exercise (HIAE) and LIAE+BFR. Blood pressure, heart rate and blood collection were carried out before exercise, immediately after exercise and 30 min after exercise. NTPDase and ADA activities were measured in lymphocytes.
RESULTS: Our results showed that LIAE+BFR triggered the same stimuli when compared to HIAE exercise regarding to NTPDases activities, suggesting that both protocols trigger an augment of these enzyme activities in response to: 1) increase in ATP release during exercise; and 2) need of adenosine generation to promotes anti-inflammatory responses in the recovery period. HIAE protocol was more effective than the others to trigger combined hypotensive and anti-inflammatory effects in the recovery period.
CONCLUSIONS: This study showed that BFR is a good tool to promote anti-inflammatory effects similar (not equal) to HIAE. Moreover, LIAE+BFR promotes much more stimuli and adaptations related to immune functions than low intensity protocols, bringing more benefits for the hypertensive elderly population.

KEY WORDS: Nucleoside triphosphate diphosphohydrolase 8, human; Adenosine deaminase; Exercise

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