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

Absorption from different intestinal segments during exercise

G P Lambert1, R T Chang, T Xia

  • 1Department of Exercise Science, University of Iowa, Iowa City, Iowa 52242-1111, USA.

Journal of Applied Physiology (Bethesda, Md. : 1985)
|July 1, 1997
PubMed
Summary
This summary is machine-generated.

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

Application research on asthma-COPD overlap using low-dose CT scan and quantitative analysis.

Clinical radiology·2024
Same author

MRI-based radiomics for stratifying recurrence risk of early-onset rectal cancer: a multicenter study.

ESMO open·2024
Same author

The ever-expanding optics of single-molecules and nanoparticles.

The Journal of chemical physics·2024
Same author

[PDCD4 knockdown ameliorates lipopolysaccharide-induced endothelial cell damage by improving mitochondrial dynamics].

Nan fang yi ke da xue xue bao = Journal of Southern Medical University·2024
Same author

The relationship between presurgical opioid type and persistent postoperative opioid use: a retrospective observational linkage study comparing tapentadol and oxycodone.

Anaesthesia·2023
Same author

Strategy to track and combat deep sternal wound infection caused by Mycobacterium farcinogenes.

The Journal of hospital infection·2023
Same journal

Thoroughbred horses susceptible to Recurrent Exertional Rhabdomyolysis have elevated skeletal muscle mitochondrial capacities.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Change in Neutrophil-to-Lymphocyte Ratio after acute and chronic exercise: A Systematic Review and Meta-Analysis.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Ankylosing spondylitis and muscle sympathetic nerve activity: a case study.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Intracranial vasomotor and blood flow responses to light intensity aerobic exercise in young adults: a 4D flow MRI study.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Comparative assessments of the COSMED adaptive mixing chamber vs. breath-by-breath methods for oxygen uptake measurements in recreationally active adults.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Can we assess exercise metabolism from skin? Metabolomic profiles in skin dialysate collected during exercise.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
See all related articles

During exercise, fluid absorption in the proximal small intestine varies by intestinal segment. Beverage composition significantly impacts water absorption rates in different segments.

Area of Science:

  • Exercise Physiology
  • Gastroenterology
  • Nutritional Science

Background:

  • Intestinal absorption is crucial for hydration and performance during exercise.
  • Understanding how fluid absorption changes with exercise intensity and beverage composition is vital for athletes.

Purpose of the Study:

  • To evaluate intestinal absorption of fluid and solutes during moderate-intensity cycle exercise.
  • To compare the effects of a carbohydrate-electrolyte beverage versus a water placebo on proximal small intestine absorption.

Main Methods:

  • Seven subjects performed two trials, ingesting either a carbohydrate-electrolyte (CHO-E) beverage or a water placebo (WP).
  • Gastric emptying and intestinal perfusion were measured using multilumen tubes and fluoroscopy.
  • Absorption was determined by segmental perfusion in the duodenum and jejunum over 85 minutes of exercise.

Related Experiment Videos

Main Results:

  • Water flux differed significantly between WP and CHO-E in the proximal and mid-jejunal segments.
  • Water flux also varied within the WP condition across different intestinal segments.
  • Total solute flux did not differ significantly between solutions or segments.

Conclusions:

  • Fluid absorption in the proximal small intestine is segment-dependent.
  • The composition of ingested beverages significantly influences water absorption rates in different intestinal segments during exercise.