Fig. 5From: Stress and recovery perception, creatine kinase levels, and performance parameters of male volleyball athletes in a preseason for a championshipCreatine kinase (CK) concentrations during the preseason (M1, first moment of evaluation; M2, second moment of evaluation; M3, third moment of evaluation; M4, fourth moment of evaluation; M5, fifth moment of evaluation; M6, sixth moment of evaluation). The asterisk indicates significant difference to M1, number sign indicates significant difference to M2, ampersand indicates significant difference to M3, and percent sign indicates significant difference to M4Back to article page