The effect of feedback after good and poor trials on the continuous motor tasks learning
Reza Goudini, Esmaeel Saemi, Saeed Ashrafpoornavaee, Behrouz Abdoli
Acta Gymnica 2018, 48(1):3-8 | DOI: 10.5507/ag.2018.001
Background: Although the useful effects of motivational feedback on the motor skills learning have been proven, a study focusing on the effects of feedback after good and poor trials in continuous motor tasks has not been conducted. Objective: The purpose of the present study is to examine the effect of feedback after good versus poor trials on continuous motor tasks learning among novices. Methods: Eighteen right-handed students (age 24.66 ± 1.35 years) were randomly divided in two groups (7 males and 2 females each) of good trial and poor trials. All participants completed 11 blocks of 6 trials for a total of 66 practice trials...
Relationships between force-time curve variables and jump height during countermovement jumps in young elite volleyball players
Javad Sarvestan, Mahdi Cheraghi, Masoud Sebyani, Elham Shirzad, Zdeněk Svoboda
Acta Gymnica 2018, 48(1):9-14 | DOI: 10.5507/ag.2018.003
Background: The importance of vertical jumps has been extensively recognised in sports. Furthermore, the main indicator of success in vertical jumps is the attained height, however, there is lack of knowledge on how the eccentric and concentric force-time curve variables affect the jump height. Objective: The objective of this study was to assess the relationships between eccentric and concentric variables of the force-time curve and jump height in youth volleyball players. Methods: Twelve elite volleyball players (male, Iranian national youth volleyball players, 17 ± 0.7 years) have participated in this study. The correlations between the force-time...
Playing table tennis contributes to better agility performance in middle-aged and older subjects
Henrieta Horníková, Ladislava Doleľajová, Erika Zemková
Acta Gymnica 2018, 48(1):15-20 | DOI: 10.5507/ag.2018.004
Background: Both reaction time and agility times increase with advancing age. However, it is not whether and to what extent regular practise of sport such as table tennis contributes to faster decision-making and movement speed in middle-aged and older adults. Objective: The aim of this study was to compare agility time in table tennis players and sedentary subjects of different ages and also to investigate the relationship between agility time and age in these groups.Methods: Forty four young, early middle-aged, late middle-aged and older table tennis players and forty eight sedentary subjects of matched age performed the agility test consisting of...
Individual differences of sensitivity of tennis players to injustice situations from the perspective of the five-factor model of personality Big Five Theory
Acta Gymnica 2018, 48(1):21-26 | DOI: 10.5507/ag.2018.002
Background: The reason why some people reflect an increased incidence of injustice and others are barely able to remember the injustice situation is embedded in the meaning that a person attributes to these situations based on their subjective evaluation. Therefore, in this context, we consider it meaningful to mention Bruner's postulated relationship between the dynamics of personality and the dynamics of perception showing that a discrepancy in the perception of a human being may be explained in the sphere of personality structure. Objective: The study aims to investigate the different level of sensitivity of tennis players towards injustice situations....
The examination of the psychometric properties of the Turkish Collective Efficacy Questionnaire for Sports
Erman Öncü, Deborah L. Feltz, Cathy D. Lirgg, Bülent Gürbüz
Acta Gymnica 2018, 48(1):27-35 | DOI: 10.5507/ag.2018.005
Background: Current research has demonstrated a consistent and positive relationship between collective efficacy and group performance in organizational settings, including sports. However, there is still a need for the development of scales measuring this relationship in order to clarify the scientific shortcomings. Objective: The current study analyzed the psychometric properties of the Turkish version of the Collective Efficacy Questionnaire for Sports (T-CEQS). Methods: The sample consisted of 522 college-age student-athletes (176 women, 346 men) from different universities in Turkey with a mean age of 21.40 years (SD = 2.11). The...
Influence of waterpipe smoking on cardiac autonomic function at rest and following high-intensity anaerobic exercise
Mehdi Ahmadian, Saeed Ghorbani, Valiollah Dabidi Roshan, Anthony S. Leicht
Acta Gymnica 2018, 48(1):36-43 | DOI: 10.5507/ag.2018.006
Background: Waterpipe (WP) smoking has been linked to reduced birth weight, genetic damage, and respiratory and cardiovascular disease, possibly via enhanced exposure to carbon monoxide and volatile aldehydes. Objective: The effect of long-term WP smoking on cardiac autonomic function at rest and following exercise was investigated. Methods: Twenty males volunteered and were divided into two groups: WP smokers (WPS) and non-smokers (NSmk). Heart rate variability (HRV) at rest and following (10 mins) Wingate test was examined. Additionally, heart rate recovery (HRR) at 1 (HRR1), 2 (HRR2) and 5 mins (HRR5) post-Wingate test were considered. Results:...