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

Oxygen uptake in one-legged and two-legged exercise.

F Ogita1, R P Stam, H O Tazawa

  • 1Swimming Performance Laboratory, National Institute of Fitness and Sports, Kanoya, Kagoshima, Japan. ogita@nifs-k.ac.jp

Medicine and Science in Sports and Exercise
|October 20, 2000
PubMed
Summary

Oxygen uptake (VO2) is higher during one-legged exercise than two-legged exercise at submaximal intensities. Peak oxygen uptake (VO2peak) does not proportionally increase with active muscle mass, even in smaller muscle activities.

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

The validity of the 4-Skills Scan A double-validation study.

Scandinavian journal of medicine & science in sports·2018
Same author

Effect of electrical stimulation-induced muscle force and streptomycin treatment on muscle and trabecular bone mass in early-stage disuse musculoskeletal atrophy.

Journal of musculoskeletal & neuronal interactions·2015
Same author

VO₂ kinetics and metabolic contributions during full and upper body extreme swimming intensity.

European journal of applied physiology·2014
Same author

Electrical stimulation of denervated rat skeletal muscle retards trabecular bone loss in early stages of disuse musculoskeletal atrophy.

Journal of musculoskeletal & neuronal interactions·2014
Same author

Changes over time in structural plasticity of trabecular bone in rat tibiae immobilized by reversible sciatic denervation.

Journal of musculoskeletal & neuronal interactions·2013
Same author

Validation of a dynamic linked segment model to calculate joint moments in lifting.

Clinical biomechanics (Bristol, Avon)·2013

Area of Science:

  • Exercise Physiology
  • Human Physiology
  • Sports Science

Background:

  • Understanding oxygen uptake (VO2) differences between one-legged and two-legged exercise is crucial for exercise physiology.
  • Previous research has not fully elucidated the factors contributing to differential VO2 responses and peak VO2 (VO2peak) scaling with muscle mass.

Purpose of the Study:

  • To identify primary factors causing differential VO2 responses during submaximal one-legged versus two-legged exercise.
  • To investigate whether VO2peak scales proportionally with increased active muscle mass.

Main Methods:

  • Subjects performed one-legged cycling (OLC) and two-legged cycling (TLC), and one-legged knee-extension (OKE) and two-legged knee-extension (TKE).
  • VO2 was measured at various submaximal intensities, and VO2peak was determined during incremental and intermittent exercise protocols.

Related Experiment Videos

Main Results:

  • VO2 relative to work rate was steeper for one-legged exercise, with significantly higher mean VO2 values compared to two-legged exercise.
  • VO2peak was significantly higher for two-legged exercise but less than double that of one-legged exercise, even in peripheral-limited knee extension.

Conclusions:

  • Differential VO2 responses are attributed to force application, postural demands, and inhibited circulatory responses in multi-limb exercise.
  • VO2peak does not scale linearly with active muscle mass, particularly when cardiac pumping capacity is not the limiting factor.