Cardiac output and leg and arm blood flow during incremental exercise to exhaustion on the cycle ergometer
نویسندگان
چکیده
منابع مشابه
Cardiac output and leg and arm blood flow during incremental exercise to exhaustion on the cycle ergometer.
To determine central and peripheral hemodynamic responses to upright leg cycling exercise, nine physically active men underwent measurements of arterial blood pressure and gases, as well as femoral and subclavian vein blood flows and gases during incremental exercise to exhaustion (Wmax). Cardiac output (CO) and leg blood flow (BF) increased in parallel with exercise intensity. In contrast, arm...
متن کاملHaemoglobin saturation during incremental arm and leg exercise.
There are few reports concerning the alterations in the percent of haemoglobin saturated with oxygen (%SO2) during non-steady state incremental exercise. Further, no data exist to describe the %SO2 changes during arm exercise. Therefore, the purpose of this study was made to assess the dynamic changes in %SO2 during incremental arm and leg work. Nine trained subjects (7 males and 2 females) per...
متن کاملLeg blood flow during exercise in man.
1. An indicator-dilution technique was used to determine human leg blood flow at rest and during exercise. The method is based on the infusion of Indocyanine Green into the femoral artery with blood sampling from the femoral vein at the level of the inguinal ligament. Evidence for mixing of dye and blood is presented, based on the finding of equal dye concentrations at two different sampling le...
متن کاملArterial O2 content and tension in regulation of cardiac output and leg blood flow during exercise in humans.
A universal O2 sensor presumes that compensation for impaired O2delivery is triggered by low O2tension, but in humans, comparisons of compensatory responses to altered arterial O2 content ([Formula: see text]) or tension ([Formula: see text]) have not been reported. To directly compare cardiac output (Q˙TOT) and leg blood flow (LBF) responses to a range of[Formula: see text] and[Formula: see te...
متن کاملEffect of low-intensity leg exercise on ventilatory threshold during incremental arm exercise.
It is known that lactate, the level of which is increased during exercise, disappears more rapidly during low-intensity exercise than during passive recovery (Belcastro and Bonen, 1975; Stamford et al., 1981). This is because lactate can be used as an energy source during low-intensity exercise. If lactate can be used in such a way, it is supposed that the lactate that is produced during high-i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Physiology
سال: 2007
ISSN: 8750-7587,1522-1601
DOI: 10.1152/japplphysiol.01281.2006