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Sex differences and frequency content of the Frank lead signal-averaged ECG in a normal population. 1996

R D Seegobin, and S A Mohamed
Queens University, Kingston, Ontario, Canada.

To quantify the content of the signal-averaged electrocardiogram (ECG) in normal subjects, 100-beat signal-averaged Frank lead ECGs at a sampling rate of 1,000 Hz and with 16-bit resolution were recorded from 88 women and 102 men with a combined average age of 22 years. The QRS portion of each lead was digitally filtered in four bandwidths: 0-10, 10-60, 60-150, and 150-250 Hz. The root-mean-square voltage of each filtered signal was calculated as an absolute value and normalized as a percentage of the sum of the four filters. Women had significantly lower root-mean-square values in all filtered bands in Frank leads X and Z (P < .01). Normalized data, however, showed no sex difference (P > .05). Sex differences may affect quantitative measurement of the frequency content of the signal-averaged ECG.

UI MeSH Term Description Entries
D008297 Male Males
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D003327 Coronary Disease An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels. Coronary Heart Disease,Coronary Diseases,Coronary Heart Diseases,Disease, Coronary,Disease, Coronary Heart,Diseases, Coronary,Diseases, Coronary Heart,Heart Disease, Coronary,Heart Diseases, Coronary
D004562 Electrocardiography Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY. 12-Lead ECG,12-Lead EKG,12-Lead Electrocardiography,Cardiography,ECG,EKG,Electrocardiogram,Electrocardiograph,12 Lead ECG,12 Lead EKG,12 Lead Electrocardiography,12-Lead ECGs,12-Lead EKGs,12-Lead Electrocardiographies,Cardiographies,ECG, 12-Lead,EKG, 12-Lead,Electrocardiograms,Electrocardiographies, 12-Lead,Electrocardiographs,Electrocardiography, 12-Lead
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012307 Risk Factors An aspect of personal behavior or lifestyle, environmental exposure, inborn or inherited characteristic, which, based on epidemiological evidence, is known to be associated with a health-related condition considered important to prevent. Health Correlates,Risk Factor Scores,Risk Scores,Social Risk Factors,Population at Risk,Populations at Risk,Correlates, Health,Factor, Risk,Factor, Social Risk,Factors, Social Risk,Risk Factor,Risk Factor Score,Risk Factor, Social,Risk Factors, Social,Risk Score,Score, Risk,Score, Risk Factor,Social Risk Factor
D012727 Sex Characteristics Those characteristics that distinguish one SEX from the other. The primary sex characteristics are the OVARIES and TESTES and their related hormones. Secondary sex characteristics are those which are masculine or feminine but not directly related to reproduction. Gender Characteristics,Gender Differences,Gender Dimorphism,Sex Differences,Sex Dimorphism,Sexual Dichromatism,Sexual Dimorphism,Characteristic, Gender,Characteristic, Sex,Dichromatism, Sexual,Dichromatisms, Sexual,Difference, Sex,Dimorphism, Gender,Dimorphism, Sex,Dimorphism, Sexual,Gender Characteristic,Gender Difference,Gender Dimorphisms,Sex Characteristic,Sex Difference,Sex Dimorphisms,Sexual Dichromatisms,Sexual Dimorphisms
D012737 Sex Factors Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from SEX CHARACTERISTICS, anatomical or physiological manifestations of sex, and from SEX DISTRIBUTION, the number of males and females in given circumstances. Factor, Sex,Factors, Sex,Sex Factor

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