Use of creatine and other supplements by members of civilian and military health clubs: a cross-sectional survey
2000
Sheppard, H.L. | Raichada, S.M. | Kouri, K.M. | Stenson-Bar-Maor, L. | Branch, J.D.
A survey was used to collect anonymous cross-sectional data on demographics, exercise habits, and use of creatine and other supplements by exercisers in civilian (C) and military (M) health clubs. M (n=133) reported more aerobic training and less use of creatine and protein supplements than C (n=96, p < .05). Supplement users (SU, n=194) and nonusers (SNU, n= 35) engaged in similar frequency and duration of aerobic exercise, as well as number of resistance exercise repetitions, but SU completed more sets for each resistance exercise (average +/- SE, 5 +/- 1) than SNU (3 +/- 1, p less than or equal to .05). Significant (p less than or equal to .05) associations were observed between SU and resistance training goal of strength (as opposed to endurance), as well as greater frequency of resistance training. Male gender, resistance training goal of strength, lower frequency and duration of aerobic training, and use of protein, beta-hydroxy-beta-methyl butyrate, and androstenedione/dehydroepiandrosterone supplements were all associated with creatine use (p < .05). For creatine users, the dose and length of creatine supplementation was 12.2 +/- 2.7 g(.)day(-1) for 40 +/- 5 weeks. Popular magazines were the primary source of information on creatine (69%) compared to physicians (14%) or dietitians (10%, p less than or equal to .0001). This study underscores two potential public health concerns: (a) reliance on popular media rather than allied-health professionals for information on creatine, and (b) use of creatine, a popular supplement with unknown long-term effects, in combination with other anabolic supplements of questionable efficacy and/or safety.
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