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?
Be in enough physical fitness to perform the incremental test to volitional exhaustion.
Present any health condition preventing to perform the incremental exercise test until volitional exhaustion.
Single group
Exercise
Other interventionIncremental exercise test until volitional exhaustion
Training status
Oxygen uptake at ventilatory threshold 1, ventilatory threshold 2 and maximal oxygen uptake
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).
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).
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