title: Direct vs. indirect blood pressure measurement at peak anaerobic exercise.
abstract: The present study compared the direct intra-arterial method with the indirect conventional sphygmomanometer during all-out anaerobic exercise, in young healthy subjects. Systolic and diastolic blood pressures were measured by intraarterial means and by auscultation. Fourteen young healthy males (23+/-2 yrs) were measured at rest and during all-out anaerobic exercise. Comparisons were made with simultaneously determined intra-arterial catheter and auscultation measurements. The data suggest that indirect systolic pressure is highly correlated with the direct method at rest (r = 0.684), with mean of 107+/-7 and 101+/-6 mmHg, respectively, and during all-out anaerobic exercise (r = 0.87), with mean of 197+/-11 and 191+/-9 mmHg, respectively. Indirect diastolic blood pressure correlates well with intra-arterial at rest (r = 0.62), with mean of 84+/-11 and 77+/-9 mmHg, respectively. However, during all-out anaerobic exercise, the correlation coefficient between the direct and the indirect methods was low (r = 0.36), with mean of 101+/-12 and 103+/-9 mmHg, respectively. These results suggest that when utilizing an all-out anaerobic exercise, the indirect method is not valid for assessment of diastolic pressure. In addition, although the anaerobic test is a dynamic type of exercise, its blood pressure responses for both direct and indirect methods were similar to those seen during isometric exercise.
authors.affiliation: Sports Medicine & Rehabilitation Division, The Zinman College of Physical Education and Sport Sciences, Wingate, Israel. sagiv@mofetsrv.mofet.macam98.ac.il
authors.forename: M
authors.initials: M
authors.lastname: Sagiv
authors.forename: D
authors.initials: D
authors.lastname: Ben-Sira
authors.forename: E
authors.initials: E
authors.lastname: Goldhammer
mesh_terms: D000328:Adult; D015308:Anaerobic Threshold; D001795:Blood Pressure Determination / Q000379:methods; D002406:Catheterization, Peripheral; D015444:Exercise / Q000502:physiology*; D006801:Humans; D008297:Male; D012680:Sensitivity and Specificity; D019722:Sphygmomanometers