نتایج جستجو برای: maximal heart ratemhr
تعداد نتایج: 469380 فیلتر نتایج به سال:
Background: Pulmonary complications following valvular heart surgery are common and contribute to increased duration of hospital stay, rate of morbidity, and mortality. The purpose of the present study was to investigate the response of maximum inspiratory pressure and functional capacity to Positive End-Expiratory Pressure device in patients who underwent valvular hea...
The maximal exercise capacity of patients with chronic heart failure is frequently reduced. To investigate whether this exercise intolerance is caused by inadequate nutritive flow to skeletal muscle, we compared cardiac outputs, leg blood flow, and leg metabolism during maximal bicycle exercise in seven patients with normal maximal oxygen uptake (V02) (>20 ml/min/kg; group A), eight patients wi...
given a non-abelian finite group $g$, let $pi(g)$ denote the set of prime divisors of the order of $g$ and denote by $z(g)$ the center of $g$. thetextit{ prime graph} of $g$ is the graph with vertex set $pi(g)$ where two distinct primes $p$ and $q$ are joined by an edge if and only if $g$ contains an element of order $pq$ and the textit{non-commuting graph} of $g$ is the graph with the vertex s...
A major determinant of maximal exercise capacity is the delivery of oxygen to exercising muscles. myo-Inositol trispyrophosphate (ITPP) is a recently identified membrane-permeant molecule that causes allosteric regulation of Hb oxygen binding affinity. In normal mice, i.p. administration of ITPP (0.5-3 g/kg) caused a dose-related increase in the oxygen tension at which Hb is 50% saturated (p50)...
Exercise performance in chronic heart failure is severely impaired, due in part to a peripherally mediated limitation. In addition to impaired maximal exercise capacity, the O(2) uptake (VO(2)) response during submaximal exercise may be affected, with a greater reliance on anaerobiosis leading to early fatigue. However, the response of VO(2) kinetics to submaximal exercise in chronic heart fail...
due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
Responses to a multistage treadmill test of maximal exercise were studied in 61 hypertensive patients: 13 had uncomplicated hypertension; 15 had associated retinopathy; 22 had left ventricular hypertrophy; and 11 also had coronary heart disease. Because of significant differences with aging normally, and differences in ages of these subgroups, responses were compared with those of normotensive ...
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