Healthy Clinical Trial - Effects of Normobaric Hypoxia & Different

Status Completed

Clinical Trial Summary

Obesity is a major global health issue and a primary risk factor for metabolic-related disorders. While physical inactivity is one of the main contributors to obesity, it is a modifiable risk factor with exercise training as an established, non-pharmacological treatment to prevent the onset of metabolic-related disorders, including obesity. Exposure to low-oxygen availability (hypoxia) via normobaric hypoxia (simulated altitude via reduced inspired oxygen fraction), termed hypoxic conditioning, in combination with exercise has been increasingly shown in the last decade to enhance blood glucose regulation and decrease body mass index, providing a feasible strategy to treat obesity. However, findings from studies investigating the potential for hypoxia to augment the exercise training response and subsequent metabolic health are equivocal. Notably, there is a lack of information regarding the optimal combination of exercise variables and hypoxic severity to enable an individualized and safe practice of exercising in a hypoxic environment. In the present randomized, single-blind, cross-over study, the investigators will investigate the effects of single-bout of different exercise modes under moderate hypoxia (FiO2, 16.5%). The investigators hypothesize that all exercises combined with hypoxia improve glucose homeostasis in overweight individuals.

Clinical Trial Description

In the present randomized, single-blind, cross-over study, participants will be exposed to moderate hypoxia (oxygen level 16.5%) during three different exercises (low-intensity cycling, sprint interval and functional exercises). Participants will be randomly assigned to each exercise condition (computer-generated randomization plan), separated by a washout period (5-7 days). To accomplish this, participants will exercise in an environmental chamber in which oxygen concentration of the ambient air and, as such, oxygen levels can be closely controlled and monitored. Participants are required to attend the laboratory 8 times. These visits are including pre-exercise screening, baseline blood sampling, body composition screening and exercise in altitude conditions. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05627804
Study type	Interventional
Source	Swinburne University of Technology
Contact
Status	Completed
Phase	N/A
Start date	January 3, 2023
Completion date	August 1, 2023

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Effects of Normobaric Hypoxia and Different Exercise Modes on Blood Glucose Regulation in Overweight Adults

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms