One-way analysis of variance was used to assess differences between the criterion HRmax and the age-predicted HRmax from the 7 equations. The predicted HRmax from the Fox equation and those of Gellish3, Tanaka, and Hossack were all significantly higher (p <= 0.05) than the CHRmax. The Fox...
We sought to determine a generalized equation for predicting maximal heart rate (HRmax) in healthy adults. BACKGROUND The age-predicted HRmaxequation (i.e., 220 − age) is commonly used as a basis for prescribing exercise programs, as a criterion for achieving maximal exertion and as a clin...
Background: Although maximal heart rate (HR)max is used widely to assess exercise intensity in sport training and particularly in various team sports, there are limited data with regards to the use of age-based prediction equations of HRmax in sport populations. The aim of this study was to ...
PURPOSE: In the HERITAGE Family Study, heart rate (HR) associated with various percentages of maximal oxygen intake (VO2max) was used to prescribe exercise intensity. When fitness improved, HR at the same power output (PO) decreased, and PO was increased to produce the prescribed HR. Although...
Artificial intelligence (AI)-based approaches can now use electrocardiograms (ECGs) to provide expert-level performance in detecting heart abnormalities and diagnosing disease. Additionally, patient age predicted from ECGs by AI models has shown great potential as a biomarker for cardiovascular age, where...
The rate of oxygen consumption at peak exercise (V’O2peak) was taken as the V’O2 averaged over the last 30-s of loaded pedaling and expressed as a percentage of the predicted normal V’O2peak (ppV’O2peak) using the reference equation published by Lewthwaite et al.,35 which takes ...
Using LOSO cross-validation, the clocks displayed age correlations as high asr = 0.941 (Supplementary Table1), suggesting their applicability to species not included in the training set. However, for certain species, such as bowhead whales, the basic clock’s predicted epigenetic age poorly ...
ggtitle("Max Heart Rate Histogram") 此外,可以观察到大多数患有心脏病的人其血清胆固醇在200-300 mg/dl范围内。 ggplot(heartDiseaseData,aes(chol, fill=target)) + 大多数心脏病患者的ST段压低为0.1。 ggplot(heartDiseaseData,aes(oldpeak, fill=target)) + ...
At the heart of our model is the breeder’s equation from quantitative genetics20. We simplify this equation by assuming small additive genetic variance equal for all traits and no covariances between traits at all times. The model can accommodate all sorts of genetic effects beyond additive and...
predicted transcriptomic age and chronological age (delta age) may be a reflection of altered biological age (see Methods). The correlation between chronological age and transcriptomic age was significant in all cohorts (P<2E−29;Fig. 3a–h). The average absolute difference between predicted age...