title: Comparison of different methods of obtaining orthostatic vital signs.
abstract: The purpose of this study was to compare two lying and standing procedures for measuring orthostatic vital signs. Thirty-five normotensive participants (mean age 21.6 years)participated in a randomized crossover study. Measures of blood pressure (BP), heart rate, and dizziness were collected at different lying and standing times. AU subjects participated in a standardized walk paced at 4 miles per hour prior to lying. Using analysis of variance (ANOVA) with post hoc contrasts, the mean systolic BP differed between 5 and 10 minutes of lying (F = 21.33, p < .001) and the mean diastolic BP tended to differ between those time points (F = 5.23, p < .03). The mean standing systolic BP and dizziness rating were different between 0- and 2-minute intervals (F = 8.36, p < .01 and F = 7.15, p < .10). In normotensive participants following standardized exercise, orthostatic vital signs stabilized after lying 10 minutes.
authors.affiliation: National Institutes of Health, USA.
authors.forename: R
authors.initials: R
authors.lastname: Lance
authors.forename: M E
authors.initials: ME
authors.lastname: Link
authors.forename: M
authors.initials: M
authors.lastname: Padua
authors.forename: L E
authors.initials: LE
authors.lastname: Clavell
authors.forename: G
authors.initials: G
authors.lastname: Johnson
authors.forename: A
authors.initials: A
authors.lastname: Knebel
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001794:Blood Pressure; D001795:Blood Pressure Determination / Q000379:methods* / Q000451:nursing / Q000592:standards; D018592:Cross-Over Studies; D003971:Diastole; D005080:Exercise Test; D005260:Female; D006339:Heart Rate; D006801:Humans; D007024:Hypotension, Orthostatic / Q000175:diagnosis* / Q000451:nursing / Q000503:physiopathology; D008297:Male; D009730:Nursing Assessment / Q000379:methods* / Q000592:standards*; D015403:Nursing Evaluation Research; D011187:Posture; D011674:Pulse; D016683:Supine Position; D013599:Systole; D013997:Time Factors