HIIT and MICT on Nitric Oxide-mediated Erythrocyte Rheology
26. marts 2021 opdateret af: Jong-Shyan Wang, Chang Gung Memorial Hospital
Effects of High Intensity Interval Training and Moderate Intensity Continuous Training on Nitric Oxide-mediated Erythrocyte Rheology
Erythrocyte rheological properties affect blood viscoelasticity and consequently regulate vascular resistance to flow shear force, whereas rheological impairments of erythrocytes may result in circulatory disorders.
The aim of this study was to establish an effective exercise strategy for improving individual aerobic capacity and for simultaneously ameliorating the risk of hemorheological dysfunction evoked by a graded exercise test (GXT) and the hypotheses is exercise intervention will improved hemorheological functions by enhancing deformability of erythrocytes via NO-mediated mechanism.
This study included 60 healthy sedentary mens (age 20~30) from Chang Gung university than were randomized into the HIIT [3-min intervals at 40% and 80% V̇O2 reserve (V̇O2R),n=10] and MICT(sustained 60% V̇O2R,n=10)on a bicycle ergometer for 30min·d-1, 5 d·wk-1 for 6 wk.
Studieoversigt
Status
Ukendt
Betingelser
Detaljeret beskrivelse
Recently, the role of erythrocyte has been more emphasized, which also related with endothelial cell.
For coronary artery patients, the endothelial nitric oxide synthase activity in red blood cell (RBC-eNOS activity) is lower than age-matched health people, and it is related with dysfunction of endothelial cell.
In cardiovascular diseases.
the erythrocyte arginase-1 is active and seize L-arginine with eNOS.
When the Arg-1 stimulated by reactive oxygen species (ROS), the nitric oxide (NO) bioactivity decrease and produce more ROS, meanwhile, ROS can go around to stimulate Arg-1.
When the RBC-NO production is lowering, it will increase the adhesion activity to endothelial cell due to erythrocyte can be quite close to blood vessel well then release Nitric Oxide, induce the dysfunction and oxidative pressure of endothelial cell.
The NO can also regulate the deformability of erythrocytes, and extremely affect oxygen supply to tissue once the deformability and aggregation of erythrocyte become abnormal.
Besides NO, the deformability will be affected if erythrocyte is continuously exposed to the endogenous or exogenous ROS, which also increase adhesion to endothelial cell with the exposure of phosphatidylserine.
Exercise can regulate the mechanism of NO release from erythrocyte, affecting the rheology of erythrocyte, and improve the anti-oxidation ability.
Therefore, as mentioned above which make erythrocyte, as many aspects, become an important role on atherosclerosis disease treatment.
Undersøgelsestype
Interventionel
Tilmelding (Forventet)
60
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Taoyuan, Taiwan, 333
- Rekruttering
- Chang Gung University
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
20 år til 30 år (Voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Han
Beskrivelse
Inclusion Criteria:
- Having a sedentary lifestyle (without regular exercise, exercise frequency ≤ once weekly, duration < 20 min).
Exclusion Criteria:
- Exposed to high altitudes (> 3000 m) for at least 1 year.
- Smoker
- Taking medications or vitamins
- Having any cardiopulmonary/hematological risk.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Eksperimentel: Høj intensitet interval træning (HIIT)
Forsøgspersonerne udførte HIIT (3-min intervaller ved 40 % og 80 % VO2peak) på et cykelergometer i 30 min./dag, 5 dage/uge i 6 uger.
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Subjects performed HIIT (3-min intervals at 40% and 80%VO2peak) on a bicycle ergometer for 30 min/day, 5 days/week for 6 weeks. Without any exercise training |
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Ingen indgriben: Kontrolgruppe
Uden træning
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Eksperimentel: Moderate intensity-continuous (MICT)
Subjects performed MICT (sustained 60%VO 2max) on a bicycle ergometer for 30 min/day, 5 days/week for 6 weeks.
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Forsøgspersonerne udførte MICT (vedvarende 60% VO 2max) på et cykelergometer i 30 min/dag, 5 dage/uge i 6 uger.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Intracellular NO production response to exercise training.
Tidsramme: 8 weeks
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Added different inhibitors or agonists to investigate the effects of exercise training on NO production mediated by eNOS-NO pathway.
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8 weeks
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Intracellular ROS production response to exercise training.
Tidsramme: 8 weeks
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Added different inhibitors or agonists to investigate the effects of exercise training on ROS production mediated by eNOS-NO pathway.
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8 weeks
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The levels of eNOS, p-eNOS and Band-3 response to exercise training.
Tidsramme: 8 weeks
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Detect the following protein levels: eNOS, p-eNOS and Band-3, by the western blots.
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8 weeks
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Determination of erythrocyte biological markers by Flow Cytometry
Tidsramme: 8 weeks
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Using the Flow Cytometry to detect the following markers: CD242, CD239, NADPH oxidase 2 (Nox2) and Arginase 1 (Arg1).
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8 weeks
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Erythrocyte deformability
Tidsramme: 8 weeks
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Isolated erythrocyte first, then assess erythrocyte deformability (elongation index ) by using laser assisted optical rotational red cell analyzer (LoRRca).
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8 weeks
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Cardiopulmonary fitness
Tidsramme: 8 weeks
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To assess cardiopulmonary fitness, cardiopulmonary exercise test (CPET) on a cycle ergometer was performed 4 days before and after the intervention.
All subjects underwent exercise with a mask to measured oxygen consumption (VO2) breath by breath using a computer-based system.
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8 weeks
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- Mao TY, Fu LL, Wang JS. Hypoxic exercise training causes erythrocyte senescence and rheological dysfunction by depressed Gardos channel activity. J Appl Physiol (1985). 2011 Aug;111(2):382-91. doi: 10.1152/japplphysiol.00096.2011. Epub 2011 May 5.
- Agre P, King LS, Yasui M, Guggino WB, Ottersen OP, Fujiyoshi Y, Engel A, Nielsen S. Aquaporin water channels--from atomic structure to clinical medicine. J Physiol. 2002 Jul 1;542(Pt 1):3-16. doi: 10.1113/jphysiol.2002.020818.
- Wang JS, Fu TC, Lien HY, Wang CH, Hsu CC, Wu WC, Chien YW, Cherng WJ. Effect of aerobic interval training on erythrocyte rheological and hemodynamic functions in heart failure patients with anemia. Int J Cardiol. 2013 Sep 30;168(2):1243-50. doi: 10.1016/j.ijcard.2012.11.053. Epub 2012 Nov 27.
- Chou SL, Huang YC, Fu TC, Hsu CC, Wang JS. Cycling Exercise Training Alleviates Hypoxia-Impaired Erythrocyte Rheology. Med Sci Sports Exerc. 2016 Jan;48(1):57-65. doi: 10.1249/MSS.0000000000000730.
- Grau M, Pauly S, Ali J, Walpurgis K, Thevis M, Bloch W, Suhr F. RBC-NOS-dependent S-nitrosylation of cytoskeletal proteins improves RBC deformability. PLoS One. 2013;8(2):e56759. doi: 10.1371/journal.pone.0056759. Epub 2013 Feb 12.
- Suhr F, Brenig J, Muller R, Behrens H, Bloch W, Grau M. Moderate exercise promotes human RBC-NOS activity, NO production and deformability through Akt kinase pathway. PLoS One. 2012;7(9):e45982. doi: 10.1371/journal.pone.0045982. Epub 2012 Sep 25.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
5. marts 2021
Primær færdiggørelse (Forventet)
4. september 2021
Studieafslutning (Forventet)
4. september 2021
Datoer for studieregistrering
Først indsendt
26. februar 2021
Først indsendt, der opfyldte QC-kriterier
26. marts 2021
Først opslået (Faktiske)
30. marts 2021
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
30. marts 2021
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
26. marts 2021
Sidst verificeret
1. marts 2021
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- 202000448A3
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