Abstract
PURPOSE: Using an acute bout of dynamic exercise the present study sought to determine the influence of the vasoacitive metabolites atrial natruretic peptide (ANP) and arginine vasopressin (AVP) on post-exercise hemodynamics in ageing men.
METHODS: Nine pre-hypertensive males, MAP = 106 ? 5 mmHg (50 ? 10 yr), not on medication, were studied following 30-minutes of cycle exercise at 70% maximal oxygen consumption. The subjects were followed post-exercise for 2-hours. Left ventricular hemodynamics were assessed via echocardiography and systemic vascular resistance (SVR)/vascular conductance (SVC) determined by the quotient of MABP/ and /MABP, respectively. Peripheral venous blood was sampled from an antecubital vein pre-, immediately post-, 1-hour post- (P1) and 2-hours post- (P2) exercise and metabolite concentrations were corrected for plasma volume shifts. ANP and AVP were determined in venous plasma via radioimmunoassay
METHODS: Nine pre-hypertensive males, MAP = 106 ? 5 mmHg (50 ? 10 yr), not on medication, were studied following 30-minutes of cycle exercise at 70% maximal oxygen consumption. The subjects were followed post-exercise for 2-hours. Left ventricular hemodynamics were assessed via echocardiography and systemic vascular resistance (SVR)/vascular conductance (SVC) determined by the quotient of MABP/ and /MABP, respectively. Peripheral venous blood was sampled from an antecubital vein pre-, immediately post-, 1-hour post- (P1) and 2-hours post- (P2) exercise and metabolite concentrations were corrected for plasma volume shifts. ANP and AVP were determined in venous plasma via radioimmunoassay
Original language | English |
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Publication status | Published - 1 Jan 2009 |
Event | American College of Sports Medcine 56th Annual Meeting - Washington State Convention and Trade Center, Seattle, United States Duration: 27 May 2009 → 30 May 2009 |
Conference
Conference | American College of Sports Medcine 56th Annual Meeting |
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Abbreviated title | ACSM 2009 |
Country/Territory | United States |
City | Seattle |
Period | 27/05/09 → 30/05/09 |
Keywords
- hemodynamics