In several experiments, it was found that periodic changes in cardiac muscle activity occurred, as shown by periods of increased and decreased cardiac action. The intensified phase was associated with the appearance of adrenalinlike substances in the heart, while the depressed phase was connected ...
Interspecific hybrids have, however, been of great use to the aquaculture industry in withstanding environmental stresses. This study adopted the non-invasive method of measuring heart rate to monitor the cardiac performance of the Pacific abalone and two of its interspecific hybrids during the ...
2, 1992 Printed in (I.S.A. Relationship between Heart Rate, Left Ventricular Output, and Stroke Volume in Preterm Infants during Fluctuations in Heart Rate PER WINBERG AND ULF ERGANDER Department of Pediatrics, Karolinska Institute, St. Goran's Children's Hospital and Karolinska Hospital, ...
Heart Rate Fluctuations and Late Ventricular Potentials in Depression Patients without Clinical Cardiovascular Disease.Heart Rate Fluctuations and Late Ventricular Potentials in Depression Patients without Clinical Cardiovascular Disease.Heart rate fluctuationslate...
My family on in the Dongcheng district, took an east city person, I very am proud. [translate] a以含液率的波动作为评定标准,优化油气两相流润滑参数,通过与前人实验对比分析,确定数值模拟的可行性以及评定标准的正确性。 By contains the fluid rate undulation to take the evaluation standard, the ...
analysis of heart rate fluctuations in mice by ECG telemetry and electrophysiologyThe normal heartbeat slightly fluctuates around aStefanie FenskeRasmus PrbstleFranziska AuerSami HassanVanessa MarksDanius H PauzaMartin BielChristian Wahl-SchottNature Protocols...
Heart rate variability (HRV) analysis is a commonly used tool for assessment of autonomic function in diabetic subjects. Nevertheless, the effects of glucose fluctuations on HRV remain to be clarified. In this study we investigated the associations of frequency-domain HRV parameters with current and...
We used chess to analyze heart rate (HR) modulations on specific cognitive events. In a chess game, players have a limited time-budget to make about 40 moves (decisions) that can be objectively evaluated and retrospectively assigned to specific subjectively perceived events, such as setting a ...
Eight nationally competitive oarsmen (mean ± SD: age 21 ± 2 years, height 190 ± 9 cm, and weight 90 ± 10 kg) rowed on an ergometer at a targeted heart rate of 130 and 160 beats per minute. SV was derived from arterial pressure waveform by pulse contour analysis, while ventilation...
Relationships between short-term blood-pressure fluctuations and heart-rate variability in resting subjects II: a simple model . Med Biol Eng Comput 23 , 359 – 364 .De Boer, R. W., J. M. Karemaker, and J. Strackee. Relation- ships between short-term blood-pressure fluctuations and ...