Modeling of breath methane concentration profiles during exercise on an ergometer
Anna Szabo, Karl Unterkofler, Pawel Mochalski, Martin Jandacka, Vera, Ruzsanyi, Gabor Szabo, Arpad Mohacsi, Susanne Teschl, Gerald Teschl, and, Julian King

TL;DR
This paper introduces a three-compartment model to analyze breath methane levels during ergometer exercise, enabling estimation of intestinal methane production from breath measurements.
Contribution
The study presents a novel mass balance model that quantitatively links breath methane profiles to intestinal methane production during exercise.
Findings
Model accurately describes methane dynamics during exercise
Enables estimation of endogenous methane production
Provides a tool for non-invasive gastrointestinal assessment
Abstract
We develop a simple three compartment model based on mass balance equations which quantitatively describes the dynamics of breath methane concentration profiles during exercise on an ergometer. With the help of this model it is possible to estimate the endogenous production rate of methane in the large intestine by measuring breath gas concentrations of methane.
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