passages.id: split_6_test_2206_passage
passages.type: progene_text
passages.text: Sixty - five patients were randomized into 1 of 4 groups : usual hematocrit ( 30 % - 33 % ) with no exercise training ( UH ) ; usual hematocrit ( 30 % - 33 % ) plus exercise training ( UHX ) ; normalized hematocrit ( 40 % - 42 % ) with no exercise training ( NH ) ; and normalized hematocrit ( 40 % - 42 % ) plus exercise training ( NHX ) .