We use near infrared spectroscopy (NIRS) for the non-invasive assessment of calf oxygenation during a new walking
protocol in healthy subjects of different fitness levels. The protocol increases the exercise power by an increase of the
skew rather than speed, and the incremental power steps are intermitted by a 30 s rest which serves for blood sampling.
The NIRS measurement parameter of tissue oxygenation are discussed, and a high correlation of the oxygen saturation
(tissue oxygenation index) difference between exercise and rest period with exercise power is observed. This difference
parameter can be interpreted as strongly linked to blood flow rather than oxygenation. This finding is supported by
comparison with spirometry data. The effect of training is discussed. The exercise protocol is suited for testing unfit, or
older subjects and the data discussed here servers as a test for a larger trial with heart clinic patients.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.