Effect of marathon run and air travel on pre- and post-run soluble d-dimer, microparticle procoagulant activity, and p-selectin levels.

D-dimer, microparticles, and p-selectin are venous thrombotic risk markers. Elevated p-selectin is associated with increased cardiovascular events. We examined the effects of exercise and air travel on the markers of vascular risk in marathon runners.

Correlates of endothelial function and the peak systolic blood pressure response to a graded maximal exercise test.

Purpose: An elevated systolic blood pressure (SBP) response to a graded maximal exercise stress test (GEST) may be a predictor of endothelial dysfunction and hypertension. We examined relationships among the GEST peak SBP response and indicators of endothelial function.

Methods: Men (n=48, 43.

Effect of statins on creatine kinase levels before and after a marathon run.

We measured the serum levels of myoglobin, total creatine kinase (CK), and the CK myocardial (CK-MB), muscle (CK-MM), and brain (CK-BB) isoenzymes in 37 subjects treated with statins and 43 nonstatin-treated controls running the 2011 Boston Marathon. Venous blood samples were obtained the day before (PRE) and within 1 hour (FINISH) and 24 hours after (POST) the race. The hematocrit and hemoglobin values were used to adjust for changes in the plasma volume.

Atorvastatin increases exercise leg blood flow in healthy adults.

Objectives: We sought to examine the effect of atorvastatin therapy on exercise leg blood flow in healthy middle-aged and older-men and women.

Background: The vasodilatory response to exercise decreases in humans with aging and disease and this reduction may contribute to reduced exercise capacity.

Methods: We used a double-blind, randomly assigned, placebo-controlled protocol to assess the effect of atorvastatin treatment on exercising leg hemodynamics.

Heterogenous vasodilator pathways underlie flow-mediated dilation in men and women.

This study investigated the sex differences in the contribution of nitric oxide (NO) and prostaglandins (PGs) to flow-mediated dilation (FMD). Radial artery (RA) FMD, assessed as the dilatory response to 5-min distal cuff occlusion, was repeated after three separate brachial artery infusions of saline (SAL), N(G)-monomethyl-L-arginine (L-NMMA), and ketorolac (KETO) + L-NMMA in healthy younger men (M; n = 8) and women (W; n = 8). In eight subjects (4 M, 4W) RA FMD was reassessed on a separate day with drug order reversed (SAL, KETO, and L-NMMA + KETO).

Effect of air travel on exercise-induced coagulatory and fibrinolytic activation in marathon runners.

Objective: Air travel and exercise change hemostatic parameters. This study investigated the effect of air travel on exercise-induced coagulation and fibrinolysis in endurance athletes.

Design: A prospective longitudinal study.

Sex-specific effect of aging on submaximal leg exercise hemodynamics in middle-aged and older adults.

The purpose of the study was to examine predictors of the leg hemodynamic response to exercise in middle- and older-aged men and women. Femoral artery blood flow (FBF), mean arterial pressure (MAP), and femoral vascular conductance (FVC, calculated as the quotient of FBF and MAP) were measured at rest and during 5 min of single knee-extensor exercise at ~10 W workload in healthy men (n = 31) and women (n = 32) (age 40-72 years). Age, menopausal status, maximal quadriceps strength, blood lipids, vitamin D levels, maximal oxygen uptake (VO(2max)), physical activity, blood pressure, estimated quadriceps muscle mass, and body mass index (BMI) were also assessed.

The endothelial nitric oxide synthase -786 T>C polymorphism and the exercise-induced blood pressure and nitric oxide responses among men with elevated blood pressure.

Objective: A polymorphism (-786 T>C) in the promoter region of the endothelial nitric oxide synthase gene (eNOS) has important functional characteristics. We examined the influence of eNOS -786 T>C (rs2070744) on the BP and NO response to acute dynamic exercise.

Methods: Subjects (n=49, 43.