Dimitrios Kokaridas

ISOKINETIC KNEE MUSCLE STRENGTH OF INDIVIDUALS WITH MENTAL RETARDATION, A COMPARATIVE STUDY

The purpose of this study was to assess differences in isokinetic muscle torque in the knee among mentally retarded individuals with Down syndrome, mentally retarded individuals without Down syndrome, and sedentary subjects without mental retardation (ns of 7, 8, and 12, respectively). Subjects performed strength tests to knee extension and flexion on a Cybex II isokinetic dynamometer. The measure was peak torque at angular velocities of 60, 120, and 300 degrees/sec. For the Mentally Retarded subjects with and without Down syndrome, the test was performed on two separate days 24 hr. apart. For Sedentary subjects, testing was performed on one day. Their scores indicated significantly higher values of torque than the two other groups. Also, subjects with Down syndrome had inferior muscle torque of lower extremities than peers in the Mentally Retarded Group.

Verbal aggressiveness and state anxiety of volleyball players and coaches.

The purpose of the present study was to examine the relation of verbal aggressiveness and state anxiety (somatic, cognitive, and self-confidence) in sports settings based on the ratings by volleyball coaches and their athletes. The sample consisted of volleyball athletes (n = 208; 98 men and 110 women) and their coaches (n = 20; 16 men and 4 women). Analysis showed that male volleyball players rated somatic anxiety higher and were more affected by the verbal aggressiveness of their coaches than female volleyball players. No mean differences were significant for male and female coaches on somatic or cognitive anxiety, self-confidence, or verbal aggressiveness. Also, correlation between subscale scores for male and female volleyball players and coaches was found. The correlations of verbal aggressiveness with self-confidence and anxiety were positive for these athletes, leading them to better behavior. This relationship needs further examination in sport settings.

The Movement Assessment Battery in Greek Preschoolers: The Impact of Age, Gender, Birth Order, and Physical Activity on Motor Outcome.

Early identification of possible risk factors that could impair the motor development is crucial, since poor motor performance may have long-term negative consequences for a childs overall development. The aim of the current study was the examination of disorders in motor coordination in Greek pre-school aged children and the detection of differences in motor performance with regards to age, gender, participation in sports and order of birth in the family. Performance profiles on the movement ABC were used to classify 412 Greek children aged 4-6 years old. It appears from the results that the occurrence rate of probable developmental coordination disorders (DCD) was 5.4%. Significant differences were observed in all independent variables except the order of birth in the family. The findings reinforce the need for the evaluation of motor performance in preschool-aged children, in order specific individual motor profiles to be established for optimizing and adapting early intervention programs.

The Effect of a Traditional Dance Training Program on Dynamic Balance of Individuals With Mental Retardation

Tsimaras, VK, Giamouridou, GA, Kokaridas, DG, Sidiropoulou, MP, and Patsiaouras, AI. The effect of a traditional dance training program on dynamic balance of individuals with mental retardation. J Strength Cond Res 26(1): 192–198, 2012—The purpose of this study was to evaluate the influence of a Greek traditional dance training program on the dynamic balance of individuals with mental retardation (MR). A total of 17 individuals participated in this study. Ten individuals with mild or moderate MR and 7 individuals with mild or moderate MR who studied in special schools were assigned to intervention (MR-I) and control (MR-C) groups, respectively. Pretraining and posttraining exercise tests were performed to determine the dynamic balance ability. Dynamic balance ability was measured by means of a balance deck (Lafayette, Lafayette, IN, USA) in 30-, 45-, and 60-second intervals. The MR-I group underwent a 16-week Greek traditional dance training program at a frequency of 3 times per week and for a duration of 45 minutes per season. Posttraining results showed that the individuals with MR in the MR-I group improved during treatment, from their baseline scores on dynamic balance measurements (30 seconds: p < 0.01, 45 seconds: p < 0.05, 60 seconds: p < 0.05). The MR-C group did not show any improvement between the 2 measurements. In conclusion, individuals with MR may be able to improve their dynamic balance when performing a systematic and well-designed Greek traditional dance training program.

The effect of a traditional dance training program on the physical fitness of adults with hearing loss.

Tsimaras, VK, Kyriazis, DA, Christoulas, KI, Fotiadou, EG, Kokaridas, DG, and Angelopoulou, NA. The effect of a traditional dance training program on the physical fitness of adults with hearing loss. J Strength Cond Res 24(4): 1052-1058, 2010-The purpose of this study was to evaluate the effect of a traditional dance training program on aerobic capacity and muscle strength of adults with hearing loss. Twenty-three adults with hearing loss were separated into 2 groups. Thirteen subjects (6 men, 7 women, mean age, 25.7 ± 3.9 years) constituted the intervention group, whereas 10 subjects (5 men, 5 women, mean age, 26.4 ± 5.9 years) formed the control group. Pretraining and posttraining treadmill tests were performed to determine heart rate (HR peak), peak minute ventilation (&OV0312;E peak), peak oxygen consumption (&OV0312;O2 peak, absolute and relative), and time to exhaustion (min). Peak torque of hamstring and quadriceps muscles at angular velocities of 60°/s−1, 180°/s−1, and 300°/s−1 was also measured. The intervention group followed a 12-week traditional dance training program, whereas the control group received no training during this period. Repeated measures of multiple analyses of variance were used to test mean differences between the values of both groups. A paired t-test was used to compare the values within each group prior and after program participation. A significance level of 0.05 was used for all tests. Following the 12-week training program, significant improvements in peak physiological parameters were seen for the intervention group for peak minute ventilation, peak oxygen consumption (both absolute and relative), time to exhaustion, and peak torque values between the 2 measurements (initial and final). No significant improvements in peak physiological parameters and peak torque were noticed in the control group. In conclusion, adults with hearing loss can improve their physical fitness levels with the application of a systematic and well-designed traditional dance training program.

Effect of rhythmic gymnastics on the dynamic balance of children with deafness

The purpose of this study was to examine the effect of a rhythmic gymnastics programme on the dynamic balance ability of a group of children with deafness. The sample consisted of 29 children with deafness. The subjects met the same criteria in terms of age, aetiology, hearing level, intelligence, school placement and socioeconomic status, and in this way, they were assigned to two groups of 12 and 17 children, for the control and experimental groups respectively. The experimental group received a 16-week rhythmic gymnastic programme at a frequency of three lessons per week, for 40 minutes, whereas the control group adhered to its regular school routine. The methods of data collection included pre-/post-test measurements of the dynamic balance for all participants of both groups. The dynamic balance ability was measured by means of a balance deck (Lafayette) in duration of 30, 45 and 60 s intervals. The findings of this study provide evidence that the specific rhythmic gymnastic programme facilitates significant improvement in the dynamic balance ability of this sample of children with deafness.

Incidence of Exercise-Induced Asthma in Adolescent Athletes under Different Training and Environmental Conditions

Abstract Sidiropoulou, MP, Kokaridas, DG, Giagazoglou, PF, Karadonas, MI, and Fotiadou, EG. Incidence of exercise-induced asthma in adolescent athletes under different training and environmental conditions. J Strength Cond Res 26(6): 1644–1650, 2012—Different sports and environmental conditions are known to influence exercise-induced asthma (EIA). The aim of this study was to establish if there were differences in the incidence of exercise-induced bronchospasm between athletes in different sports, which take place under different environmental conditions such as open places, closed courses, and swimming pools with similar exercise intensity (football, basketball, water polo) using the free running test. The study included 90 adolescents (3 groups of 30) aged 14–18 years recruited from academies in northern Greece. All the participants were initially subjected to (a) a clinical examination and cardiorespiratory assessment by a physician and (b) free running test of a 6-minute duration and measurement with a microspirometer of the forced expiratory volume in 1 second (FEV1). Only the participants who had measured a decrease in FEV1 ≥ 10% were reevaluated with the microspirometer during a training session. The examination of all the participants during the free running test showed that 22 athletes, that is, 9, 8, and 5 of football, basketball, and water polo athletes, respectively, demonstrated an FEV1 ≥ 10 drop. Reevaluation of the 22 participants during training showed that 5 out 9 (55%) football athletes, 4 out of 8 basketball athletes (50%), and none of the 5 athletes of the water polo team displayed a drop of FEV1 ≥ 10%. Despite the absence of any significant statistical differences between the 3 groups, the analysis of variances did show a trend of a lower incidence of EIA in the water polo athletes. It was found that a football or basketball game can induce EIA in young athletes but to a lesser degree than the free running test can induce. The water polo can be a safer sport even for participants with a medical history of asthma or allergies.

The effect of a physical activity programme on improving mood profile of patients with schizophrenia

Objectives: Physical activity in persons with schizophrenia is associated with improvement of physical health parameters, reductions in depression and anxiety and an increased social interaction and psychological well-being. The aim of this study was to examine the effect of an exercise programme on improving mood profile of 30 patients with schizophrenia, separated in three groups (control group, experiment group A and experiment group B) of 10 individuals. Methods: Data from patients with schizophrenia collected using the instrument Profile of Mood States which was selected and administered prior, during and after application of the exercise programme. Repeated measures ANOVA and post hoc paired t-test were used to examine the short-term effect of the exercise programme prior and after the 1st, the 12th and the 24th training session between and within groups, respectively. The eight weeks duration of the exercise programme was conducted combining physical activity with behavioural treatment so as to promote exercise behaviour and minimise drop out risk.Results: Experiment group B participants as compared to those of the experiment group A and control group reported at the end of the exercise programme as felling more vigorous, less depressed and less confused leading to an improved total mood score. Conclusions: Physical activity interventions referring to schizophrenia patients that also incorporate behaviour strategies lead to an improved mood profile of patients with psychosis.

Gross Motor Ability of Native Greek, Roma, and Roma Immigrant School-Age Children in Greece:

Laboratory of Developmental Pediatrics and Special Education, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, Greece The purpose of this study was to estimate and compare gross motor ability of children aged 7 to 10 years, all from Roma minority families (Romas, Roma immigrants) and families of indigenous Greeks. The sample consisted of 180 children (60 natives, 60 Romas, 60 Roma immigrants) studying in Greek public primary schools. The Test of Gross Motor Development scores showed that the group of indigenous Greek children had significantly higher performance in terms of locomotion skills, handling skills, and general motor ability compared to the groups of Roma and Roma immigrant children. No statistically significant differences were observed between the two other groups. These findings might be attributed to less participation of minority children in organized physical activities in and outside school, as well as to the reduced parental encouragement for attending related activities.

Motor developmental delays of institutionalised preschool-aged children

The aim of this study was the examination and the detection of differences in the motor developmental profiles between preschool-aged children living in conventional institution facilities and in natural family environment. The psychomotor development of 50 children, aged four to six years, was assessed using the two motor subscales (A, locomotor; and D, eye–hand coordination) of the Griffiths Test No II. It appears from the results that the family-reared children had better performance in both motor scales compared to children living in conventional institutions. The findings reinforce the need for the evaluation of motor performance in preschool-aged children raised in institutions, in order to change institution environments into more supportive ones for the most benefit of childrens fine and gross motor development.