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Machado,Marco; Pereira,Rafael; Sampaio-Jorge,Felipe; Knifis,Franz; Hackney,Anthony. |
The purpose of this study was to determine the effects of creatine supplementation and exercise on the integrity of muscle fiber, as well as the effect of the supplementation on the creatine kinase (CK) assay measurement. Forty-nine sedentary individuals participated in a double-blind study and were divided into two groups: C (n=26) received 4x5-day packages of 0.6 g.kg-1 of body weight contained 50% of creatine + 50% of dextrose, and P (n=23) received packages containing only dextrose. On the first day the groups performed a 1RM test for bench press, seated row, leg extension, leg curl and leg press. On D7 they received the supplements. On the fourteenth day, they performed a training session of five exercises, each in three sets of ten repetitions at 75%... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physical exercise/effects; Creatine/supplementation/effects; Creatine Kinase/assay; Muscle fibers. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000400020 |
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Machado,Marco; Breder,Anselmo Carvalho; Ximenes,Marcio Carvalho; Simões,Jarbas Rodrigues; Vigo,José Fábio Florentino. |
The aim of this work was to evaluate the effect of caffeine supplementation and intermittent exercise on the muscle injury markers in soccer players. 15 male professional soccer players completed a placebo controlled double blind test protocol. 45 minutes before exercise, participants ingested 5.5 mg.kg-1 body mass of caffeine (EXP, n=8) or placebo (CONT, n=7). The exercise was 12 sets of 10 sprints (20 m each) with 10 sec recovery time between sprints and 2 min between sets. Blood samples were collected before (PRE) and 48h after exercise (POST). Serum activity of CK, LDH, AST, and ALT were quantified. Serum enzyme activity was enhanced by exercise in both groups, without a synergistic effect of caffeine. The findings suggest muscle injury markers... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Muscle injury/markers; Transaminases; Physical exercise; Caffeine/supplementation; Soccer; Creatine kinase; Lactate dehydrogenase. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000200010 |
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