Swenne, C.A.

heart rate variability study heart association variability angle population disease activity factor qrs-t angle women qrs-t matrix difference effect subject analysis health qrs-t angles diabetes heart rate result smoking analyses sport risk factors carla table method dower matrix alcohol behavioural recording dower frequency alcohol consumption kors matrix consumption model behavioural risk factors measure measurement lf /hf infarction circulation hypertension tobacco products rautaharju blood 20- min ecg heart failure cholesterol 12- health behavior quartile training power mortality ratio health behaviour index 1.0 glucose manuscript variable pattern .001 tertile frequency power triglycerides participant behavior failure examination population-based epidemiol kluttig electrocardiogram behaviour