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Participants of the Four Study Groups
| Study | Description |
|---|---|
| 1 | Usual-care hematocrit (30%-33%) with no exercise training. (UH) |
| 2 | Usual-care hematocrit (30%-33%) with exercise. (UHX) |
| 3 | Normalized hematocrit (40%-42%) with no exercise (NH) |
| 4 | Normalized hematocrit (40%-42%) with exercise training. (NHX) |
