An exercise physiologist conducted an investigation into the comparative efficacy of three altitude-training protocols designed to improve athletic aerobic capacity.
Thirty-six competitive triathletes, all with similar baseline fitness levels, took part in the research. Before the training protocols commenced, the physiologist recorded the maximal oxygen uptake (VO2 max\text{VO}_2\text{ max}VO2 max, in mL⋅kg−1⋅min−1\text{mL}\cdot\text{kg}^{-1}\cdot\text{min}^{-1}mL⋅kg−1⋅min−1) of each participant during a standard treadmill run to exhaustion.
The participants were randomly assigned to three equal groups of 12:
After the 4-week training period, the physiologist once again recorded the maximal oxygen uptake (VO2 max\text{VO}_2\text{ max}VO2 max) of each participant using the same treadmill test.
Identify the dependent variable in this study.
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