Resting- and postexercise-ECG findings in an adult Lapp population.
Resting electrocardiograms were recorded in 412 and postexercise-ECGs in 186 Lapp men and women over the age of 40. Abnormalities in the resting-ECG suggestive of old myocardial infarction by the Minnesota code were found in 7% of the men and in 1% of the women. ST-depression compatible with myocardial ischaemia in the resting-ECG were found in 3% of men aged 40-49 years and in 5% of women of the same age; and increased with age up to 11% and 24% in men and women, respectively, over the age of 60. Postexercise ST-depressions of "ischemic type" were found in 18% of the men and in 13% of the women, but there was no clear age dependence. The frequency of high amplitude R-waves of the left type was high compared with most normal populations, especially in men (29%). These prevalences were very similar to those previously reported in a Finnish population.
D000328:Adult; D003327:Coronary Disease / Q000453:epidemiology / Q000235:genetics; D004562:Electrocardiography; D005260:Female; D005387:Finland; D005787:Gene Frequency; D006331:Heart Diseases / Q000453:epidemiology* / Q000235:genetics; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology / Q000235:genetics; D010641:Phenotype; D005082:Physical Exertion; D012146:Rest