Efthimis Kioumourtzoglou

Experience with Perceptual and Motor Skills in Rhythmic Gymnastics

Based on the notion of measuring motor performance, an experiment with three groups of 20 elite rhythmic gymnasts (N = 60), 9 to 10 yr., 11 to 12 yr., and 13 to 15 years of age (national level), with children of the same size and age was conducted, to identify the important abilities for the achievement of excellence in this sport. Motor abilities (whole-body coordination, dynamic balance, static balance, sense of kinesthesis, whole-body movement time, and eye-hand coordination) as well as perceptual abilities (whole-body reaction time, anticipation of coincidence, and depth perception) were compared. Analysis showed that scores on measures of whole-body coordination, dynamic balance, and static balance were higher for elite groups of athletes than for corresponding control groups. Moreover, elite athletes in the oldest group scored higher than those in the youngest group on anticipation of coincidence, on eye-hand coordination, and on static balance. These findings indicate the presence of systematic differences between elite athletes and nonathletes on motor abilities related to experience in this sport.

Comparing hybrid learning with traditional approaches on learning the Microsoft Office Power Point 2003 program in tertiary education

The purpose of this study was to determine the effectiveness of a hybrid learning approach to deliver a computer science course concerning the Microsoft office PowerPoint 2003 program in comparison to delivering the same course content in the form of traditional lectures. A hundred and seventy-two first year university students were randomly assigned into two teaching method groups: traditional lecture instruction (TLI) and hybrid lecture instruction (HLI). Each group received six 95-min periods of instruction divided into 4 sections: a) 5-min brief outline of the key learning points, b) 40-min lecture on general knowledge c) 45-min constructivist-inspired learning activities and d) 5-min summary on key learning points. In the beginning and the end of this study students completed a 17-item multiple choice knowledge test. Two-way analysis of variances (ANOVA), with repeated measures on the last factor, were conducted to determine effect of method groups (TLI, HLI) and measures (pre-test, post-test) on knowledge test. The measures main effect was significant, as well as the groups x measures interaction effect. Two independent-samples t test were conducted to follow up the significant interaction. Differences in mean ratings of knowledge performance between the two teaching groups were not significantly different at first measure, while the TLI method group yielded a significantly lower mean rating at second measure. The findings indicated that HLI approach might be a superior option for undergraduate students on learning the Microsoft office PowerPoint 2003 program.

Effect of a Music and Movement Programme on Development of Locomotor Skills by Children 4 to 6 Years of Age

This study investigated the effect of a 10‐week music and movement programme on the quality of locomotor skills in children 4 to 6 years of age. Sixty‐eight children (35 boys and 33 girls) served as subjects. The Test of Gross Motor Development (Ulrich, 1985) was used for the assessment of locomotor skills (running, skipping, galloping, hopping, leaping, sliding, and horizontal jump). Thirty‐five children participated in the exercise programme twice a week while the rest did not participate in any organised physical activity programme. In the absence of significant differences between the two groups in the pre‐test, multivariate analysis of variance (2X2 Manova) with repeated measures was used for data analysis. The results revealed a significant measure X group interaction on galloping, leaping, horizontal jump, and skipping. From the comparison of groups’ mean differences it was shown that the experimental group had significantly greater improvement on the above skills than the control group. It seems that a music and movement programme can improve significantly the quality of certain more complex locomotor skills.

Cognitive, perceptual, and motor abilities in skilled basketball performance.

The differences among athletes of differing skill should assist successful identification and selection of the best athletes in a specific sport. For the purpose of this study, a laboratory study was conducted with a group of 13 men on the elite male national team of basketball players, 22 to 23 years of age, and a control group of 15 men of equal age (physical education class) to assess differences in their scores on cognitive skills (memory-retention, memory-grouping analytic ability), perceptual skills (speed of perception, prediction, selective attention, response selection), and motor skills (dynamic balance, whole body coordination, wrist-finger dexterity, rhythmic ability). Analysis showed that elite male basketball players scored higher on hand coordination and lower on dynamic balance given their anthropometric measurements. Elite players were better on memory-retention, selective attention, and on prediction measures than the control group. The above skills are important in basketball performance. Researchers may examine whether other factors contribute more in the development of perceptual and cognitive skills.

Student attitude and learning outcomes of multimedia computer-assisted versus traditional instruction in basketball

The purpose of this study was to examine the effect of multimedia computer-assisted instruction (MCAI), traditional instruction (TI), and combined instruction (CI) methods on learning the skill of shooting in basketball. Additionally, a comparison of the students’ attitudes towards the MCAI and TI methods was made. Seventy-five middle school students of seventh and eighth grade were randomly assigned into three teaching method groups: TI, MCAI and CI. Each group received ten 45-min periods of instruction divided into three sections: (a) 5-min introduction, (b) 30-min instructional time and (c) 10-min questions and review. Students took pre-, post-, and retention written test covering techniques and rules of the games. Participants in the CI group also completed a post-test attitude survey towards the MCAI and TI methods. Two-way analysis of variances (ANOVA), with repeated measures on the last factor, were conducted to determine effect of method groups (MCAI, TI, CI) and measures (pre-test, post-test, re-test) on knowledge test. Paired samples t-test analyses were conducted to measure students’ attitude towards the MCAI and TI methods. Post-test results indicated no significant differences between the groups concerning the written test. Nevertheless, the attitude test scores of the CI group were more favourable to MCAI method than the TI method. Retention test results showed that groups retained the knowledge acquisition. However, the combine method of instruction tended to be the most effective on cognitive learning.

Contextual Interference Effects in Learning Volleyball Skills

The aim of this study was to examine the contextual interference effect on learning three volleyball skills. Participants were 26 novice female volleyball players (M age = 12.4 yr., SD = 1.2). They were assigned into two groups, Low Interference (n = 13) and High Interference (n = 13). Two practice schedules were used: blocked (Low Interference) and random (High Interference). The training period lasted for 10 weeks and included 2 training sessions of 75 min. each per week. The pretest was performed before the first training session, the posttest was performed after the completion of the last training period, and the retention test was performed two weeks after the posttest. A 2 (Groups) × 3 (Measurement Periods) analysis of variance with repeated measures indicated significant improvement in performance between pre- and posttests for both High Interference and Low Interference groups for the three skills included in this study. There was no significant main effect of group or interaction effect of group and measure. These findings suggest that either blocked or random practice could be effectively used in learning of volleyball skills by unskilled children.

ASSESSMENT OF ABILITIES IN BASKETBALL: A PRELIMINARY STUDY '

Understanding the responding at two competitive levels of sports is prerequisite for successful identification and selection of the best athletes. The present study is a preliminary report about scores on 17 cognitive, perceptual, motor, and psychological measures of 13 elite Greek basketball athletes (national team), 20 to 22 years of age, and 15 children on a national basketball team and 14 to 15 years of age. Longitudinal studies must be conducted for the identification of the relationships among these measures and basketball performance and the development of a model for selection of athletes.

COMBINED EFFECTS OF GOAL SETTING AND PERFORMANCE FEEDBACK ON PERFORMANCE AND PHYSIOLOGICAL RESPONSE ON A MAXIMUM EFFORT TASK

A laboratory experiment was conducted (N = 40 subjects) to examine whether goal setting would be associated with reduced heart rate on an endurance task. Participants performed an endurance task on an ergometer bicycle. One week later when participants performed the task again half of them set a specific personal goal for an increase in performance. Analysis indicated that subjects who set a goal showed significant improvement in comparison with the control group. Moreover, subjects in the goal group had a significantly lower mean heart rate during the test and had a higher mean heart rate at the end of the test than on the first trial. Results are discussed in terms of combining cognitive and physiological explanations for the beneficial effects of goal setting on performance.

Differences in self-reported perceived and objective measures of duration and intensity of physical activity for adults in skiing.

The effect of physical activity (PA) on health is well documented. The assessment of PA is a valuable and important issue, however, there are several methodological issues among the available methods of measurement that may have implications for the prevention of specific diseases. The purpose of this study was to examine the differences between an objective method of measurement and the subjective estimation of the PA for novice skiers. Seventy-five students aged 19–21 years old with no previous experience in ski participated in this study. Participants wore a heart rate monitor during practice in order to record the exercise intensity. Simultaneously, a trained observer recorded their time on task. A day after the objective measurement, the participants filled a questionnaire in order to estimate their perceived exertion during practice as well as their perceived time on task. The results showed (1) differences between the observed time on task and the perceived recalled time, (2) no differences overall between the recorded and perceived recalled intensity of exercise but when groups were split according to their objective intensity a difference was found for each group respectively. Participants overall had overestimated the time on task, but they had underestimated the intensity of their effort recalled 1 day after their practice. These results raise the question whether a questionnaire as method of measuring PA is reliable, especially when it is used to estimate energy expenditure. However, further studies must be made in order to examine the implications of such a question.

The Effects of Multimedia Computer-Assisted Instruction on Middle School Students’ Volleyball Performance

The purpose of this study was to examine the effect of multimedia computer — assisted instruction (MCAI), traditional instruction (TI), and mixed instruction (MI) methods on learning the skill of setting in Volleyball. Forty-eight middle school students of seventh and eighth grade were randomly assigned into three teaching method groups; TI, MCAI and MI. Each group received ten 40-min periods of instruction divided into 3 sections: a) 5 min warmup, b) 30-min main practice time and c) 5-min cool dawn and review. TI group participants experienced the setting ability through a series of progressive skills accompanied with drill and repetition of practice presented by an instructor. The MCAI group experienced the setting ability through a series of progressive skills accompanied with drill and repetition of practice presented by a multimedia program. The mixed group experienced the same procedure, practicing through the multimedia program as well as through traditional instruction. All students completed pre-, post-, and retention skill test. Two-way analysis of variances (ANOVA), with repeated measures on the last factor, were conducted to determine effect of method groups (TI, MCAI, MI) and measures (pre-test, post-test, re-test) on skill test. Post-test results indicated no significant differences between the groups concerning the skill test. Retention test results showed that groups retained the skill learning. However, the mixed method of instruction tended to be the most effective for skill development.