Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
©Journal of Sports Science and Medicine (2014) 13, 571 - 579

Research article
Sensitivity of Physiological and Psychological Markers to Training Load Intensification in Volleyball Players
Victor H. Freitas1, , Fabio Y. Nakamura1, Bernardo Miloski2, Dietmar Samulski3, Mauricio G. Bara-Filho4
Author Information
1 Departamento de Educação Física, Universidade Estadual de Londrina, Londrina, Brazil
2 Escola de Educação Física e Esporte, Universidade de São Paulo, São Paulo, Brazil
3 Escola de Educação Física, Fisioterapia e Terapia Ocupacional da Universidade Federal de Minas Gerais, MG, Brazil
4 Faculdade de Educação Física e Desportos, Universidade Federal de Juiz de Fora, MG, Brazil

Victor H. Freitas
✉ Rua Ibitiguaia 690, Santa Luzia, CEP 36031-000, Juiz de Fora– MG, Brazil
Publish Date
Received: 22-11-2013
Accepted: 02-04-2014
Published (online): 01-09-2014
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The aim of this study was to test the sensitivity of; performance in the countermovement vertical Jump (CMJ); the Recovery and Stress Questionnaire for Athletes (RESTQ-Sport); the Total Quality Recovery Scale (TQR) and the creatine kinase (CK) to the deliberate intensification of volleyball training loads. For this purpose 8 athletes underwent a training period (FP) of 11 days of deliberate training load (TL) intensification followed by a second period (SP) of 14 days of reduction of loads (IT group). A further 8 athletes continued training with normal TL (NT group). Both groups were tested before the FP (baseline), after the FP and after the SP. The TL evaluated using the session rating of perceived exertion method (session-RPE) was higher after the FP compared to the SP, and higher in the IT group, compared to the NT group. The CMJ did not change in either group (p > 0.05). In the IT group, the RESTQ-Sport was altered after the FP compared to both the baseline and the SP (p < 0.05), while no change was observed in the NT group. In the IT group, the CK increased and the TQR decreased after the FP compared to both the baseline and after the SP and were higher and lower, respectively, than the NT group (p < 0.05). The results suggest that performance in the CMJ is not a sensitive variable to the fatigue caused by intensification of training loads during a pre-competitive period in volleyball, whereas CK, TQR and RESTQ-Sport were shown to be sensitive measures.

Key words: Team sport, rating of perceived exertion, physical training, overtraining, performance

           Key Points
  • The RESTQ-Sport and the TQR scales were sensitive to deliberate intensification of training loads during the pre-competitive period in volleyball athletes;
  • The CK can be used to complement this monitoring;
  • The CMJ performance was not sensitive to deliberate intensification of training loads in volleyball athletes.
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