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Voldyne
Excerpted from
Arnold
Jacobs: Song and Wind*
 To determine a person's actual vital capacity,
a test is given to determine how much air [in
liters] can be moved in or out of the lungs in a
single breath. These tests are given on medical
equipment such as a respirometer or spirometer. In
1982,
Jacobs introduced to the music world the Voldyne®,
an inexpensive medical device that can give an
approximate reading up to five liters. There are
two chambers--the larger [right] is to measure the
air volume and the smaller [left] for air
pressure.
To use, place the tube between the teeth over
the tongue so as not to obstruct the air
passageway. Inhale with a fast breath, keeping the
ball in the pressure chamber as close to the top
as possible. Watch the main chamber for the amount
of air inhaled indicated by the top of the disk.
There is a marker to manually mark the amount of
air previously inhaled.
Video
- Voldyne
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*Arnold Jacobs: Song and Wind. Copyright ©1996
by Brian Frederiksen. Printed in the United States
of America. All rights reserved. No part of this
book may be reproduced in any form or by any
electronic or mechanical means without permission
in writing from the author. |
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