Abstract
Background: Volleyball players in different specializations are required to meet specific demands in terms of movement behaviour and skills performance. These specific demands need to be individualized according to the training ability level (adaptability to sports training) of particular players, which is mainly dependent on the activity of the autonomic nervous system (ANS). Spectral analysis of heart rate variability (SA HRV) gives us information on cardiac activity regulation, where the activity of ANS participates in a significant way. Longitudinal assessment of SA HRV within a certain part of a training period can help us to observe the dynamics of the ANS activity and adaptability (training ability) changes of an observed player to training. Objective: The goal of the work was to verify the possibility of volleyball players' training load optimalization during a one week training microcycle based on the longitudinal observation of dynamics of SA HRV complex indices. Methods: The SA HRV method was used for the evaluation of autonomic cardiac regulation. The study group consisted of eight volleyball players who took part in 28 training sessions focused on conditioning and volleyball skills development. During the microcycle, there were 7 HRV examinations. Results: The results demonstrated that notable and considerably varied changes in the activity of ANS in players were assessed owing to both training and extra-training stimuli. The results in two players show a high activity of ANS which enables them to increase their training intensity. Four players achieved average values of their ANS activity, which reflects a corresponding training load. In the last two players we found a very low level of their ANS activity and it refers to their reduced adaptability to the training load, which was too high for them. Conclusions: The presented results support the necessity of the individualization of, at least a part of, team training. Such an optimalization and increase of training process efficiency should lead to a sports performance improvement, also in team sports games.
Highlights
Sports performance in volleyball is influenced by a number of qualities, skills, and the functional states of players, which come out in a match, including jump height, the power and precision of a hit, and the speed or timing of a move
The highest autonomic nervous system (ANS) activity was recorded in player S2, whose high vagal activity steadily conditioned the biggest spectral power
In four players (B1, S1, S3 a N2), ANS activity was lower and it shows evidence of a certain level of fatigue and a lower level of adaptation to sports training; the training intensity during the camp corresponded to their training capacity
Summary
Sports performance in volleyball is influenced by a number of qualities, skills, and the functional states of players, which come out in a match, including jump height, the power and precision of a hit, and the speed or timing of a move. Spectral analysis of heart rate variability (SA HRV), based on methods of frequency analysis of R-R intervals from ECG records, gives us information on the autonomic regulation of cardiac activity. This autonomic nervous system (ANS) regulation significantly affects the adaptation of an athlete’s organism to training and thereby his/her sports performance. Volleyball players in different specializations are required to meet specific demands in terms of movement behaviour and skills performance These specific demands need to be individualized according to the training ability level (adaptability to sports training) of particular players, which is mainly dependent on the activity of the autonomic nervous system (ANS). Longitudinal assessment of SA HRV within a certain part of a training period can help us to observe the dynamics of the ANS activity and adaptability (training ability) changes of an observed player to training
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
