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End Systolic Pressure Change Following Acute Isometric Exercise
Author(s) -
Sun Peng,
Lane Abbi D.,
Ranadive Sushant,
Yan Huimin,
Kappus Rebecca M.,
Cook Marc,
Mendonça Gonçalo Vilhena,
Fernhall Bo
Publication year - 2011
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.25.1_supplement.644.8
NTRODUCTION End systolic pressure (ESP) is related to left ventricular afterload, and is usually estimated from the formula [2×(systolic BP)+diastolic BP]/3, where BP is the brachial blood pressure, or from ESP=0.9×systolic BP. It is unknown if estimation during isometric exercise is accurate. PURPOSE To examine the effect of isometric exercise on measured and estimated ESP at rest, during 30% of maximal voluntary contraction (MVC) and recovery. The secondary purpose was to compare the values from the prediction formulas to measured values. METHODS Sixteen healthy young (age 26±4 y) individuals underwent measurements of brachial BP, aortic BP and ESP (Sphygmacor) at rest, during 30% MVC and recovery (2 min post‐exercise). RESULTS CONCLUSION Acute isometric exercise increases ESP, suggesting an increase in afterload. Neither prediction formula was accurate, but the change in ESP with isometric exercise was reflected by the estimated values.