The Hypoxic Profile during Trekking to the Pyramid Laboratory

The oxygen saturation values reported in the high altitude literature are usually taken during a few minutes of measurement either at rest or during exercise. We aimed to investigate the daily hypoxic profile by monitoring oxygen saturation for 24 h in 8 lowlanders (4 females, ages 26 to 59) during trekking from Lukla (2850 m) to the Pyramid Laboratory (5050 m). Oxygen saturation was measured (1) daily at each altitude (sm), (2) for 24-h during ascent to 3500 m, 4200 m, and on day 1 at 5050 m (lm), and (3) during a standardized exercise (em). Results: (1) the sm and lm values were 90.9% (+/-0.5) and 86.4% (+/-1.1) at 3500 m; 85.2%(+/-1.1), and 80% (+/-1.9) at 4200 m; 83.8%(+/-1) and 77% (+/-1.7) at 5050 m (p < or = 0.05); (2) the daily time spent with oxygen saturation < or =90% was 56.5% at 3500 m, 81% at 4200 m, and 95.5% at 5050 m; (3) during exercise, oxygen saturation decreased by 10.58%, 13.43%, and 11.24% at 3500, 4200, and 5050 m, respectively. In conclusion, our data show that the level of hypoxemia during trekking at altitude is more severe than expected on the basis of a short evaluation at rest and should be taken into account.
 
Citation proposal
Annalisa Cogo (Centro Studi Biomedici Applicati allo Sport - Università di Ferrara) - Luca Pomidori (Centro Studi Biomedici Applicati allo Sport - Università di Ferrara) - Daniela Bonardi (Istituto di Malattie Respiratorie Policlinico IRCCS - Università di Milano) - Federica Campigotto (Centro Studi Biomedici Applicati allo Sport - Università di Ferrara) - Valter Fasano (Istituto di Malattie Respiratorie Policlinico IRCCS - Università di Milano) - Alessandra Gennari (Centro Studi Biomedici Applicati allo Sport - Università di Ferrara) - Gabriele Valli (Dipartimento di Medicina Clinica e Fisiopatologia. Università “La Sapienza” – Roma) - Paolo Palange (Dipartimento di Medicina Clinica e Fisiopatologia. Università “La Sapienza” – Roma.) (2009) . The Hypoxic Profile during Trekking to the Pyramid Laboratory. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/fde6227f-5b01-4922-b3fd-3596c52dcff3
 

INSPIRE

Identification

File identifier
fde6227f-5b01-4922-b3fd-3596c52dcff3   XML
Online resource
Protocol
WWW:LINK-1.0-http--link
Resource identifier
Metadata language
eng
Encoding
Format
Version
Projection
 

Classification of data and services

Topic category
  • Health
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Classification of data and services

Coupled resource
Coupled resource
 
 

Keywords

GEMET ( Theme )
  • altitude
Other keywords
Keywords ( Theme )
  • lowlanders
Keywords ( Theme )
  • arterial oxygen saturation
Keywords ( Theme )
  • pulse oximetry
Keywords ( Theme )
  • SHARE
 
 

Geographic coverage

N
S
E
W


 

Temporal reference

Temporal extent
Temporal extent
Date ( Publication )
2009-01-01T00:00:00
 

Quality and validity

Lineage
 

Conformity

Conformity
Conformity
 

Conformity

Conformity
Conformity
 

Restrictions on access and use

Access constraints
 

Restrictions on access and use

 

Responsible organization (s)

Contact for the resource
Organisation name
Centro Studi Biomedici Applicati allo Sport - Università di Ferrara
Email
annalisa.cogo@unife.it
Organisation name
Centro Studi Biomedici Applicati allo Sport - Università di Ferrara
Email
pmdlcu@unife.it
Organisation name
Istituto di Malattie Respiratorie Policlinico IRCCS - Università di Milano
Email
Organisation name
Centro Studi Biomedici Applicati allo Sport - Università di Ferrara
Email
Organisation name
Istituto di Malattie Respiratorie Policlinico IRCCS - Università di Milano
Email
Organisation name
Centro Studi Biomedici Applicati allo Sport - Università di Ferrara
Email
Organisation name
Dipartimento di Medicina Clinica e Fisiopatologia. Università “La Sapienza” – Roma
Email
Organisation name
Dipartimento di Medicina Clinica e Fisiopatologia. Università “La Sapienza” – Roma.
Email
 

Responsible organization (s)

Contact for the resource
Organisation name
Centro Studi Biomedici Applicati allo Sport - Università di Ferrara
Email
annalisa.cogo@unife.it
Organisation name
Centro Studi Biomedici Applicati allo Sport - Università di Ferrara
Email
pmdlcu@unife.it
Organisation name
Istituto di Malattie Respiratorie Policlinico IRCCS - Università di Milano
Email
Organisation name
Centro Studi Biomedici Applicati allo Sport - Università di Ferrara
Email
Organisation name
Istituto di Malattie Respiratorie Policlinico IRCCS - Università di Milano
Email
Organisation name
Centro Studi Biomedici Applicati allo Sport - Università di Ferrara
Email
Organisation name
Dipartimento di Medicina Clinica e Fisiopatologia. Università “La Sapienza” – Roma
Email
Organisation name
Dipartimento di Medicina Clinica e Fisiopatologia. Università “La Sapienza” – Roma.
Email
 

Metadata information

Contact for the metadata
Organisation name
Ev-K2-CNR
Email
metadata@evk2cnr.org
Date stamp
2014-06-29T16:36:46
Metadata language
eng
Character set
UTF8
 
 

SDS

Conformance class 1: invocable

Access Point URL
Endpoint URL
Technical specification
 

Conformance class 2: interoperable

Coordinate reference system
 
Quality of Service
 
Access constraints
Limitation
 
Use constraints
Limitation
 
Responsible custodian
Contact for the resource
 
 

Conformance class 3: harmonized

 
 

  Overviews

thumbnail

  Provided by

  Share on social sites

         

  Views

Read here the full details and access to the data.

  Associated resources

Not available