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The aims were to assess (a) the usefulness of RESTQ-Sport in the process of training monitoring and (b) whether a change in psychological parameters is reflected by similar changes in specific biochemical parameters. The high volume training period, in general, caused increases in stress scales and decreases in recovery scales of the RESTQ-Sport, while during recovery period, stress levels declined. Cortisol was not changed during the study period, but significant increases in creatine kinase activity were found during the high training period compared to reference period. The results of the present study demonstrate that changes in training volume were reflected by changes in the RESTQ-Sport scales. A close relationship was found between cortisol and creatine kinase activity and subjective ratings of stress and recovery.
Jarek Mäestu is with the Department of Psychology, and Jaak Jürimäe and Kairi Kraegipuu are with the Institute of Sport Pedagogy and Coaching Sciences, University of Tartu, Jakobi 5, Tartu 50090, Estonia and The Estonian Centre of Behavioral and Health Sciences. E-mail: email@example.com.