"研究者想根据一些变量(age、weight、heart_rate和gender)预测另一个变量(VO2 max)。针对这种情况,可以使用多重线性回归分析,但需要先满足以下8项假设:" 请问多重线性回归分析需满足的条件中没有像logistic回归那样对纳入自变量个数与样本量的要求,意思是没有这个条件限制?如果有,请问一般是每个自变量至少对应多少...
If you have a faster-than-normal heart rate (your heart beats more than 100 times per minute), you have what doctors call tachycardia. It’s not always a bad thing. Exercise, for example, can push your heart rate above 100 bpm. However, you may require medication to slow your heart r...
To determine the genomic location of the 35 remaining candidate heart-specific genes, they were used as query sequences to search the human genome sequence. A cognate match was found for 32/35 (89%) of the genes. As expected, most of the genes had several partial matches in close proximit...
Furthermore, we develop fusion approaches and determine the performance gain on the reliability of heartbeat detection. Altogether, we want to answer the research questions: (1) Which driving time is utilisable to detect the heartbeat robustly and accurately in the vehicle?, (2) What is the ...
In HFrEF, the Prospective Comparison of Angiotensin Receptor Neprilysin Inhibitor with Angiotensin Converting Enzyme Inhibitor to Determine Impact on Global Mortality and Morbidity in Heart Failure and Aliskiren Trial to Minimize Outcomes in Patients with Heart failure trials, which included a total of 12...
The heart valves determine the flow of blood through the heart. The valves open and close to allow for unidirectional blood flow, preventing regurgitation or blood flow in the wrong direction. Valves are classified as atrioventricular (AV) or semilunar. The two AV valves, the mitral valve and ...
heart rate variability (HRV) to determine whether autonomic regulation of the heart in astronauts who did or did not experience post-flight orthostatic intolerance was different pre-flight and/or was differentially affected by short duration (8 – 16 days) spaceflight. HRV data from ten-minute ...
IHD is often associated with a variety of complications, making it difficult to determine the underlying cause of death. The data analyzed in the present study may not accurately represent the mortality rate of IHD. In addition, the effect of regions, provinces, and different levels of economic...
Hardware differences between devices determine HR measurement second to second, which has large implications on overall interpretability of the data, such that sampling rate can introduces researcher degrees of freedom for calculating bpm. Unfortunately, there is currently a lack of transparency from manuf...
The repeated measurements of heart rate variability (HRV) is more relevant than a single HRV measurement in predicting patient prognosis but is less addressed previously. This prospective study aimed to investigate the association between repeated measurements of HRV and long-term mortality in chronic ...