Key result
Adolescent orthostatic testing reveals normal HR increases up to ~48 bpm, challenging adult diagnostic criteria.
Why the study?
Reference ranges for orthostatic changes in heart rate and blood pressure in adolescents were not established, and the appropriateness of adult criteria for diagnosing orthostatic intolerance in adolescents was uncertain.
Cross-Sectional (n=307)
Adolescents experience large orthostatic heart rate changes and symptoms, suggesting that adult criteria for orthostatic intolerance syndromes are inappropriate for this age group.
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Provides adolescent orthostatic HR reference ranges; leaves open validation for diagnostic use in symptomatic patients.
Skinner et al. (2010) reported a cross-sectional. Orthostatic testing was evaluated on Orthostatic heart rate change at 2 and 5 minutes. Orthostatic testing in adolescents demonstrated heart rate changes of -2 to +41 bpm at 2 minutes and -1 to +48 bpm at 5 minutes, suggesting adult diagnostic criteria are inappropriate for this age.
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