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.
Age range
20 Years – 40 Years
Sex
MALE
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The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Oral glucose tolerance test (glucose)
Timeframe: Change of fasting and postprandial plasma glucose concentrations compared to different exercise mode at immediately after exercise
Oral glucose tolerance test (insulin)
Timeframe: Change of fasting and postprandial plasma insulin concentrations compared to different exercise mode at immediately after exercise