Muscle free creatine content increased in all groups over time (1.7±22 and 10.2±23 mmol/kg DW, p=0.03) with no significant differences among groups (KA-L –3.3±19.3, 0.53±22; KA-H 1±12.8, 9.1±23; CrM 8.2±32, 22.3±28 mmol/kg DW, p=0.19). In percentage terms, free creatine muscle content significantly increased over time (10.7±41, 29±46%, p= 0.003) with no differences observed among groups (KA-L -5.9±35, 11.9±40; KA-H 6.2±29, 27.3±49; CrM 34.6±50, 50.4±45%, p=0.10). Bodyweight increased in all groups over time (0.9±1.9, 1.42±2.5 kg, p<0.01) with no significant differences among groups (KA-L 0.7±0.83, 0.9±1.6; KA-H 1.7±2.9, 2.3±3.7; CrM 0.56±1.1, 1.1±1.4 kg, p=0.29). Fat-free mass significantly increased over time for all groups (0.67±0.9, 0.89±1.2 kg, p<0.01) with no differences among groups (KA-L 0.42±1.2, 0.37±1.3; KA-H 0.96±0.9, 1.2±1.4; CrM 0.6±0.8, 1.1±0.9 kg, p=0.16). Body fat percent decreased over time (-0.28±1, -0.22±1.4 %, p=0.42) for all groups with no differences among groups (KA-L -0.04±1.3, 0.15±1.2; KA-H -0.3±0.7, -0.31±1.6; CrM -0.5±0.9, -0.5±1.4 %, p=0.35). There was a significant increase in 1RM for bench press in all groups over time (8.1±9.7 kg, p<0.01) with no differences between groups (KA-L 7.1±3; KA-H 7.3±15; CrM 10±8 kg, p=0.73). There was no significant change in leg press 1RM (p=0.33). Total work performed on the WAC test increased in all groups over time (-69±1,030, 552±1,361 J, p=0.003) with no differences among groups (KA-L -278±676, 64±1,287; KA-H 412±1,041, 842±1,369; CrM -301±1,224, 775±1,463 J, p=0.27).