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Creatine monohydrate (Cr. H20) has been shown to increase intramuscular phosphocreatine (Harris et a/. 1992) as well as increasing the power output of various high intensity work tasks (Balsom et al. 1993, Greenhaff et al. 1993). To the author’s knowledge, Cr. H20 supplementation in strength trained athletes has not yet been reported in the literature. Therefore, this study investigated the influence of Cr. H20 supplementation on muscular power and strength indices in 10 experienced weight-trained male subjects. Three series of high intensity, anaerobic type, muscular workbouts were used. Series one included three consecutive 30-s Wingate bike tests, interspersed with 5 min of rest. Peak anaerobic power was denoted as the greatest power achieved in a given 5-s work interval. Anaerobic work was defined as the total amount of work performed in a 30-s period. Series two utilized a one repetition maximum (1 RM) free weight bench press as a test of muscular strength. Series three employed complete lifting repetitions at 70% of the bench press 1 RM until fatigue. Lifting cadence was paced through the use of a metronome set at a 1-s timing interval (1 s eccentric, 1 s concentric) and fatigue was defined as (1) the inability to complete one lifting repetition or (2) the inability to maintain the lifting cadence. Total lifting volume was calculated as 70% of pre-test 1 RM multiplied by the number of complete lifting repetitions. Body composition was measured via hydrostatic weighing techniques; a 3-day recall was used to assess dietary differences between groups. All procedures were approved by the Human Subjects Review Board of Texas Woman’s …