FABIANA BRAGA BENATTI

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LIM/17 - Laboratório de Investigação em Reumatologia, Hospital das Clínicas, Faculdade de Medicina

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  • article 41 Citação(ões) na Scopus
    Effects of long-term low-dose dietary creatine supplementation in older women
    (2015) LOBO, Daniel Medeiros; TRITTO, Aline Cristina; SILVA, Luana Rodrigues da; OLIVEIRA, Paloma Borges de; BENATTI, Fabiana Braga; ROSCHEL, Hamilton; NIESS, Barbara; GUALANO, Bruno; PEREIRA, Rosa Maria Rodrigues
    Objective: We aimed to investigate the effects of a one-year low-dose creatine supplementation trial on bone health, lean mass, and muscle function in older postmenopausal women. Methods: A double-blind, randomized, parallel-group, placebo controlled trial was conducted between November 2011 and November 2013 in Sao Paulo, Brazil. Postmenopausal osteopenic women were randomly allocated (1:1) into creatine (n = 56; 1 g/d) or placebo group (n = 53; dextrose at same dose). At baseline and after one year of intervention, we assessed parameters of bone health, body composition, and muscle function. Blood parameters were also assessed before and after the intervention and adverse events were recorded throughout the trial. Possible differences in dietary intake were assessed by three 24-h dietary recalls. Results: Bone mineral density at lumbar spine, femoral neck, total femur, and whole body did not differ within- or between-groups. No significant changes in body weight, BMI, absolute and relative body fat, and body lean mass were observed. Muscle function, as assessed by timed-up-and-go and timed-stands tests, were not significantly changed within- or between-groups. Safety laboratory parameters remained unaltered. Conclusion: A one-year low-dose creatine supplementation (I g/d) was free of adverse effects, but did not affect bone health parameters, lean mass, or muscle function in older women. Further studies with longer follow-up periods and higher doses of creatine supplementation are warranted. (Registered at clinicaltrials.gov as NCT01472393).