Acta Universitatis Palackianae Olomucensis. Gymnica, 2011 (vol. 41), issue 2

Changes in decision-making skill and skill execution in soccer performance: The intervention study

Rudolf Psotta, Andrew Martin

Acta Univ. Palacki. Olomuc., Gymn. 2011 41(2): 7-15 | 10.5507/ag.2011.008

Background: Previous studies have provided controversal results on the development of the skills of decision-making skill and skill execution when tactical models of the teaching of a game were used. Objective: The purpose of the study was to examine the effects of two different combined technical-tactical instructional models on the development of decision-making skill and ball skill execution during a soccer match in female students. Methods: Two groups of female students aged 20.9±0.7 years underwent the 5-week soccer training intervention, consisting of two 90 min. training units a week, based on the technical-tactical...

Effects of a school-based intervention program for adolescents with a special focus on the overweight/obese population

Michal Kudláček, Lisa Carla James

Acta Univ. Palacki. Olomuc., Gymn. 2011 41(2): 17-26 | 10.5507/ag.2011.009

Background: Obesity has become a pandemic, with more than a billion people affected worldwide. During the past two decades, the prevalence of obesity in children has risen greatly throughout the entire world. This is especially alarming in youth where the new prevalence is above predicted trends. Objective: This study was aimed at providing an intervention program for adolescents in the category of overweight/obese in accordance with physical activity (PA) guidelines. The total duration of the project was 8 weeks. The purpose of the study was to assess the effects of the intervention and promote lifelong participation in physical activities....

Kinematical analysis, pole forces and energy cost of Nordic walking: Slope influence

Zdeněk Svoboda, Pavel Stejskal, Aleš Jakubec, Jakub Krejčí

Acta Univ. Palacki. Olomuc., Gymn. 2011 41(2): 27-34 | 10.5507/ag.2011.010

Background: Several studies concerning Nordic walking (NW) have been reported on however previous investigations have usually focused only on physiological variables or on the kinematics of a moving subject with poles. Until now, only one study that observed the generation of upper limb force acting on a pole has been presented. In our pilot study NW was observed in a more comprehensive manner by means of physiological and biomechanical methods. Objective: The objective of the pilot study was to compare biomechanical and physiological variables during walking without and with poles on the different slopes of the ground. Methods:...

Analysis of conflict resolution in physical education depending on a teacher's gender

Jože Štihec, Mateja Videmšek, Saša Vrbnjak

Acta Univ. Palacki. Olomuc., Gymn. 2011 41(2): 35-43 | 10.5507/ag.2011.011

Background: Although many studies about conflict handling and resolution have so far been conducted, only a limited number of them have delved into the sphere of physical education. The specific nature of work with physical education in certain situations intensifies the occurrence of conflicts. The teacher as an expert in the educational process can, in such cases, provide a good example of how to handle a specific conflict. Objective: The study aimed to gather information about differences in the resolving of conflict situations which arise during the physical education process between male and female physical education teachers in...

Isokinetic strength of knee flexors and extensors of adolescent soccer players and its changes based on movement speed and age

Michal Lehnert, Josef Urban, Jiří Herbert Procházka, Rudolf Psotta

Acta Univ. Palacki. Olomuc., Gymn. 2011 41(2): 45-53 | 10.5507/ag.2011.012

Background: During childhood and adolescence there is growth in muscle strength. The dynamics of change in muscle strength and its causes have not yet been fully clarified and may differ within individuals and specific groups. The knowledge of current isokinetic strength levels among athletes of varying ages and disciplines represents important information from the point of view of sport performance, as well as health prevention. Objective: The aim of this study is to determine within a group of highly trained adolescent soccer players (n = 45; age = 17 ± 1.2 years; body height 178.4 ± 5.3 cm, body weight 68.5 ±...

Adherence to the aerobics exercise program in women aged 40 to 65

Liběna Kováčová, Pavel Stejskal, Filip Neuls, Milan Elfmark

Acta Univ. Palacki. Olomuc., Gymn. 2011 41(2): 55-63 | 10.5507/ag.2011.013

Background: The analysis of exercise adherence belongs among the basic criteria for evaluation of the efficiency of intervention exercise programs. Objective: The aim of this study was to analyze the adherence of participants to the half-year dance and step aerobics program. Methods: The experimental group consisted of 47 women aged 40 to 65 years old who exercised three times per week for a period of six months. The participant's attendance sheets and their answers to two questions from the checklist were used for the evaluation of their adherence to the workouts. Results: The mean value of the adherence of the whole...

An analysis of school physical activity in adolescent girls

Petra Nováková Lokvencová, Krzysztof Skalik, Karel Frömel, Krystyna Górna-Łukasik

Acta Univ. Palacki. Olomuc., Gymn. 2011 41(2): 65-70 | 10.5507/ag.2011.014

Background: It has been well evidenced that physical activity (PA) has a positive effect on human health. It is very likely that a physically active child will grow up to be a physically active adult. Growing older, there is evidence of decreasing PA in children and youth. In the period of adolescence, girls tend to be less physically active than boys and therefore they are understood to be a risk group in relation to PA. Objective: The aim of the study was to characterize school related weekly PA in adolescent girls and to identify the influence of participation in Physical Education lessons (PE) on the structure of weekly PA. Methods:...