Creatine kinase kinetics in professional soccer players during a competitive season.

• Main Authors: Daniel Barbosa Coelho (Author), Rodrigo Figueiredo Morandi (Author), Marco Aurélio Anunciação de Melo (Author), Emerson Silami Garcia (Author)
• Format: Book
• Published: Universidade Federal de Santa Catarina, 2011-04-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.
• Notes: 1415-8426; 1980-0037; 10.5007/1980-0037.2011v13n3p189
• Keywords: physical exercise; training; performance.; Sports; GV557-1198.995; Medicine (General); R5-920
• Source: Revista Brasileira de Cineantropometria e Desempenho Humano, Vol 13, Iss 3, Pp 189-194 (2011)

Serum creatine kinase (CK) concentration has been widely used as an indicator of skeletal muscle damage in sports. However, there are no longitunal studies on post-game CK kinetics in Soccer during a competitive season. The aim of this study was to evaluate serum CK kinetics in professional Soccer players at different post-game times during a competitive season without training interruption. Seventeen professional soccer players (age: 22.2±3.1 years, height: 179±6.0 cm, body fat percentage: 9.5±1.1, and 67.0±3.5 mL O2/kg/min) were evaluated over a period of 3 months of the national championship. Serum CK concentration was measured before the beginning of the season (baseline) and at four different times after a soccer game (post-1: 12-20 h, post-2: 36-48 h, post-3: 60-65 h, and post-4: 90-110 h). Plasma CK concentrations were higher at all times when compared to baseline (p<0.05). Post-2 CK concentration was lower than post-1 and higher than post-3 and -4 (p<0.05), with no significant differences between post-3 and post-4. In conclusion, serum CK kinetics was influenced by the training routine of the soccer players, with a peak between 12 and 20 h after the game, returning to normal within 60-65 h. This procedure can be used to monitor the recovery state of athletes and game and training intensities.