The goal of this cross-over study is to evaluate the physiological response to exercise and body composition according to training status in participants with a wide spectrum of fitness states. The main questions it aims to answer are: * Which are the physiological differences across participants with different training status? * Which are the body composition differences across participants with different training status?
To satisfy the objective of the project, participants will perform an incremental test until volitional exhaustion. During this test, respiratory gases will be measured via a gas analyser as well as the cardiac response via an electrocardiogram. The same participants will have their body composition measured by dual X-ray densitometry (DXA).
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
1,272
Incremental exercise test until volitional exhaustion
Faculty of physical activity and sport sciences
Madrid, Comunity of Madrid, Spain
RECRUITINGTraining status
Oxygen uptake at ventilatory threshold 1, ventilatory threshold 2 and maximal oxygen uptake
Time frame: breath-by-breath during the whole test
Body composition
Fat mass (kg), fat free mass (kg), fat mass percentage, fat-free mass (FFM) percentage, weight (kg), and height (m). These variables are assesed by dual-energy X-ray absorptiometry (DXA).
Time frame: one determination before the test
Bone mineral density
Total, lumbar spine and femoral neck bone mineral density (g/cm\^2). These variables are assesed by dual-energy X-ray absorptiometry (DXA).
Time frame: one determination before the test
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