Forskning
Udskriv Udskriv
Switch language
Region Hovedstaden - en del af Københavns Universitetshospital
Udgivet

Maximal heart rate does not limit cardiovascular capacity in healthy humans: insight from right atrial pacing during maximal exercise

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  1. Blood-brain barrier permeability measured using dynamic contrast-enhanced magnetic resonance imaging: a validation study

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Lower body negative pressure to safely reduce intracranial pressure

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. Sodium nitroprusside dilates cerebral vessels and enhances internal carotid artery flow in young men

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  4. Reduced arterial vasodilatation in response to hypoxia impairs cerebral and peripheral oxygen delivery in hypertensive men

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Vis graf over relationer
In humans, maximal aerobic power (VO2max) is associated with a plateau in cardiac output (Q), but the mechanisms regulating the interplay between maximal heart rate (HRmax) and stroke volume (SV) are unclear. To evaluate the effect of tachycardia and elevations in HRmax on cardiovascular function and capacity during maximal exercise in healthy humans, twelve young male cyclists performed incremental cycling and one-legged knee-extensor exercise (KEE) to exhaustion with and without right atrial pacing to increase HR. During control cycling, Q and leg blood flow increased up to 85% of maximal workload (WLmax) and remained unchanged until exhaustion. SV initially increased, plateaued and then decreased before exhaustion (P
OriginalsprogEngelsk
TidsskriftThe Journal of physiology
Vol/bind592
Sider (fra-til)377-390
ISSN0022-3751
DOI
StatusUdgivet - 2014

ID: 41954008