Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Cardiac output during exercise in paraplegic subjects.

J L Jehl1, M Gandmontagne, G Pastene

  • 1Laboratoire de physiologie, Faculté de Médecine, Clermont-Ferrand, France.

European Journal of Applied Physiology and Occupational Physiology
|January 1, 1991
PubMed
Summary

Paraplegic subjects exhibit reduced maximal oxygen consumption during arm exercise. However, their maximal cardiac output, heart rate, and stroke volume are comparable to able-bodied individuals, indicating altered oxygen transport due to impaired vasomotor regulation.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Dietary pattern and growth of 10-12-year-old Bolivian girls and boys: Relation between altitude and socioeconomic status.

American journal of human biology : the official journal of the Human Biology Council·2017
Same author

[Changes in the mitotic index of neoplastic cells in culture (KB strain) under the influence of a Trypanosoma cruzi extract].

Comptes rendus des seances de la Societe de biologie et de ses filiales·2014
Same author

Causes of failure in the treatment of scabies in hospitals.

Annales de dermatologie et de syphiligraphie·2010
Same author

Ring of apparent preputial sclerosis in a circumcised ritual, in reality lymphangiomatous cystic dilation on scar.

Annales de dermatologie et de syphiligraphie·2010
Same author

Pruritic dermatosis in glass wool.

Annales de dermatologie et de syphiligraphie·2010
Same author

Glass wool dermatosis.

Archives des maladies professionnelles de medecine du travail et de securite sociale·2010

Area of Science:

  • Cardiovascular Physiology
  • Exercise Physiology
  • Sports Medicine

Background:

  • Spinal cord injury (SCI) significantly impacts physiological responses to exercise.
  • Arm cranking is a primary mode of exercise for individuals with paraplegia.
  • Understanding cardiovascular adaptations in SCI is crucial for rehabilitation and performance.

Purpose of the Study:

  • To measure cardiac output using the CO2 rebreathing method during arm cranking exercise.
  • To compare exercise responses between male paraplegic subjects (HP) and able-bodied (AB) individuals.
  • To investigate alterations in oxygen transport capacity in high-level spinal cord injury (HP).

Main Methods:

  • CO2 rebreathing method for cardiac output measurement.
  • Submaximal and maximal arm cranking exercise protocols.

Related Experiment Videos

  • Comparison of physiological parameters (VO2max, cardiac output, heart rate, stroke volume) between HP and AB groups.

    • Main Results:

    • Maximal oxygen consumption (VO2max) was significantly lower in HP compared to AB subjects.
    • Maximal cardiac output, maximal heart rate (fc,max), and maximal stroke volume were similar between HP and AB groups.
    • The relationship between heart rate and VO2 (fc/VO2 slope) was steeper in HP, but not different when expressed as a percentage of VO2max.

    Conclusions:

    • Paraplegic individuals demonstrate a reduced capacity for oxygen transport to active muscles during arm exercise.
    • Impaired vasomotor regulation below the level of spinal cord injury likely contributes to these altered oxygen transport dynamics.
    • Despite differences in VO2max, cardiac function appears preserved at maximal effort in this population.