Unit:
Department of Physical Education & Sport ScienceLibrary of the School of Physical Education and Sport Science
Dissertation committee:
Τσολάκης Χαρίλαος Καθηγητής, ΣΕΦΑΑ , ΕΚΠΑ
Αποστολίδης Νικόλαος Καθηγητής, ΣΕΦΑΑ , ΕΚΠΑ
Μπαρζούκα Καρολίνα Αναπληρώτρια Καθηγήτρια, ΣΕΦΑΑ , ΕΚΠΑ
Γελαδάς Νικόλαος Καθηγητής, ΣΕΦΑΑ , ΕΚΠΑ
Δρίκος Σωτήριος Επίκουρος Καθηγητής, ΣΕΦΑΑ , ΕΚΠΑ
Σωτηρόπουλος Κωνταντίνος Επίκουρος Καθηγητής ΣΕΦΑΑ , ΕΚΠΑ
Νούτσος Κωνσταντίνος Αναπληρωτής Καθηγητής, ΣΕΦΑΑ , ΕΚΠΑ
Original Title:
Η επίδραση της σχετικής και χρονολογικής ηλικίας και μεταβλητών του προπονητικού φορτίου στην ισχύ των άνω και κάτω άκρων αγοριών και κοριτσιών πετοσφαίρισης 13-16 ετών
Translated title:
Τhe effect of relative, chronological age and training load variables on the upper and lower limb power of male and female volleyball players aged 13-16 years
Summary:
The process of athletes’ talent identification is complex and multifactorial. The talent identification process is consisting of different stages such as talent detection, recognition, development and the final selection. Specifically, talent identification concerns the process of choosing young athletes with the potential to become high-level athletes, while talent development requires that these athletes are within a suitable learning and support environment so that they have the opportunity to develop their capabilities to be selected for the National teams. The existence of limited information tappearspear to be presented in our country is a challenge to conduct the following studies.
In the 1st and 2nd studies, 389 male and female athletes from all over our country were involved. Were They subjected to somatomorphic measurements (body height, body mass, hand opening), to measures of assessment of physical abilities (capability to change direction, strength of lower and upper extremities). The purpose of these studies was to determine the relationship between certain anthropometric parameters and physiological characteristics, as well as to investigate the presence of differences between chronological and relative age (RAE), in total number and towards different competing positions. The purpose of the 3rd and 4th studiy were to record the training load (well-being-fatigue indicators, heart variability (HRV), sleep, neuromuscular performance variables) in 47 young and young athletes and athletics of the national volleyball team U17 during a 21days training camp. The statistical analysis of the data included: a) an analysis with the Kolmogorov-Smirnov test to determine the use of parametric or non-parametric tests.
Parametric statistical tests were used to study a) gender differences, b) to study differences between chronological and relative age, and c) to investigate the effect of training load on neuromuscular variables and on heart variability before and after 20 days of intense training.
No significant differences were observed between the age groups of 13 years (HO13) and 14 years (OH14) in terms of anthropometric characteristics, and except for flexibility, they exceeded in all normal tests. Significant differences in competitive positions were observed, with the main ones appearing between unskilled athletes and other positions. There were no differences between athlètes born in the first compared to the last quarter in general, and when examined for competitive position, there was consequently no age-related phenomenon.
The training load during the training camps was moderate in for male and female athletes, and did not seem to affect HRV and sleep, with girls appearing more prepared (fresh) for new training the next day, resulting in significant but small quantitative changes in jumping ability. Sleep questionnaires provided important information on sleep habits and sleep quality. Female athletes have more stress, which however does not appear to affect performance.
Conclusion: Anthropometric characteristics are the most appropriate approach to identifying and selecting young male and female athletes. Role acquisition is also a fact in Greece since the age of 13, which in longitudinal studies is expected to confirm the correctness of these training choices. The study of the relevant age did not confirm choices and superiority based on the birth quarter. Study of two different parvovies in selected youth male and female athletes, showed that they did not cause unwanted fatigue adjustments, while especially in girls they also improved their alpha performance.
Main subject category:
Education - Sport science
Keywords:
anthropometric characteristics, physiological abilities, playing positions, relative age, training load, heart rate variability
Number of references:
411
