Valsalva maneuver: shortest optimal expiratory strain duration
نویسندگان
چکیده
منابع مشابه
Valsalva maneuver: shortest optimal expiratory strain duration
PURPOSE To quantitate the level of difficulty and determine consistency of hemodynamic responses with various expiratory strain (ES) durations. METHODS Thirty-four healthy subjects performed the Valsalva maneuver (VM) with an ES duration of 10, 12, and 15 seconds in random order. Level of difficulty after each trial was rated 1 to 10, with 10 being the most difficult. Blood pressure and heart...
متن کاملValsalva Maneuver and Strain-Related ECG Changes
BACKGROUND During the four steps of the Valsalva maneuver (VM), opposite changes can be observed in some physiologic parameters. Manifestations of the VM in the electrocardiogram (ECG) have been studied in detail, but there have been few reports comparing VM-related biochemical and hemodynamic changes with a focus on the strain phase of the VM. OBJECTIVES We studied strain-related ECG changes...
متن کاملvalsalva maneuver and strain-related ecg changes
background during the four steps of the valsalva maneuver (vm), opposite changes can be observed in some physiologic parameters. manifestations of the vm in the electrocardiogram (ecg) have been studied in detail, but there have been few reports comparing vm-related biochemical and hemodynamic changes with a focus on the strain phase of the vm. objectives we studied strain-related ecg changes d...
متن کاملProposal Intensity Adequacy of Expiratory Effort and Heart Rate Behavior During the Valsalva Maneuver in Preadolescents
BACKGROUND When performing the Valsalva maneuver (VM), adults and preadolescents produce the same expiratory resistance values. OBJECTIVE To analyze heart rate (HR) in preadolescents performing VM, and propose a new method for selecting expiratory resistance. METHOD The maximal expiratory pressure (MEP) was measured in 45 sedentary children aged 9-12 years who subsequently performed VM for ...
متن کاملHeart rate assessment during maximal static expiratory pressure and Valsalva maneuver in healthy young men.
BACKGROUND The measure of the maximal expiratory pressure (MEP) has some contraindications, as it is believed that the responses obtained in this measure are similar to the Valsalva maneuver (VM). OBJECTIVE The main purpose of this study was to evaluate the heart rate responses (HR) during the MEP and the VM measures in healthy young men into different postures aiming to identify whether and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Community Hospital Internal Medicine Perspectives
سال: 2011
ISSN: 2000-9666
DOI: 10.3402/jchimp.v1i2.7015