Showing 5 results for Child
, , , ,
Volume 11, Issue 6 (10-2013)
Abstract
Introduction and Purpose: The rate of overweight and obesity of childhood is dramatically increasing. It seems that mechanical load would affects motor activities for instance walking pattern. This study undertaken to compare spatio-temporal parameters of walking among overweight and normal childrens 10 to 12 years.
Methodology: In this semi-experimental study, 30 subjects (15 overweight boys and 15 normal boys) are randomly selected participated. Footprints recorded during walking with ink and paper system. In order to make comparison of spatio- temporal parameters of walking of subjects Independent Samples t-Test is used. Results: Significant difference was seen in three parameters spending time, speed and cadence between the two groups; in addition, there is significant difference in foot progressive angle between dominant and non dominant limbs.
Discussion and conclusion: According to the findings of this study, which confirms findings of previous studies, in order to optimize walking pattern perhaps overweight changes the pattern of gait through improvement of motor control.
Majid Jalili, Farzad Nazem, Akbar Sazvar,
Volume 16, Issue 16 (12-2018)
Abstract
Aerobic power (VO2max) is an important indicator of the health and physical fitness. Executive problems in direct VO2max measurement has led to developing sub-maximal aerobic power prediction equations. The purpose of present study was to develop native aerobic power prediction equation based on 6-Minute Walk Test (6MWT) and body composition indices in children. In 192 healthy children (8 to 12 years) VO2max was objectively measured by Bruce treadmill protocol with gas analysis. The 6MWT was performed according to ATS guidelines. Also, anthropometric measurements were measured according to standard methods. Multiple regression analysis was used to design aerobic power (ml/kg/min) prediction equation. Accuracy of native VO2max prediction equation was assessed by Pearson correlation and Bland-Altman approach between measured and predicted VO2max. Significant correlation was observed between direct VO2max and independent variables (r=0.25-0.734). Aerobic power of the boys could be predicted by weight and 6MWT according to the following equation: VO2max(ml/kg/min)= 5.359 + (0.067 × 6MWD m) – (0.286 × Weight kg) (r2=0.743, SEE=2.74 ml/kg/min, p≤0.001). Strong correlation was observed between measured and predicted VO2max (r=0.861, P≤0.001). In addition, Bland and Altman plots demonstrated a high degree of consistency between measured and predicted VO2max. Exercise and fitness coaches by utilization of native aerobic prediction equation based on the 6MWT and weight could be able to assess the aerobic power of the boys and to evaluation of the effects of exercise training on cardio-respiratory fitness.
Saeed Arsham, Tahereh Rahimi, Malihe Sarabandi,
Volume 20, Issue 23 (9-2022)
Abstract
Introduction and aim: Physical activity and especially the motor proficiency of children have been studied from different aspects. The purpose of the present study was to determine the correlation among Functional Movement Screening scores with motor proficiency and physical activity levels of children aged 10 to 13 (Mean=11.72, SD=0.932) in Tehran province. Methods: In this descriptive study of correlation, all the children of primary schools in Tehran province were considered as the study population, from which 94 girls were selected by cluster random method. Their motor proficiency, physical activity levels, and functional movement were evaluated with Bruininks Oseretsky test-Short Form (BOT-2), International Physical Activity Questionnaire- Short Form (IPAQ-SF), and Functional Movement Screening test (FMS) respectively. Findings: The results of the Pearson correlation coefficient test showed that there is a significant relationship between the scores of the children's functional movement screening test and their BOT-2 total score (P=0.000), but the correlation between the total score of the functional movement screening test and the total score of the physical activity levels was not significant (P=0.267). Conclusion: In general, due to the existence of a significant relationship between functional movement and motor proficiency, the next step is to use early interventions and study their effect on improving children's performance and motor proficiency.
Mr Behzad Mohamadi Orangi, Dr Rasoul Yaali, Dr Mohammad Taqi Aghdasi,
Volume 20, Issue 24 (3-2023)
Abstract
The aim of this study was to Compare Effectiveness motor proficiency of the nutritional status on men in different age groups ((children, adolescents and young adults)), respectively. Statistical Society study was for children all student ages 10-7 years, for adolescents all student ages 15-12 years and for Youth of all students 20-18 of Tehran University except the student physical education. The sample was 90 people in each of the age groups, the four elementary schools and four high schools in Tehran and Tehran University male students were chosen by cluster sampling. This study was a descriptive survey and comparison measurement was test of instruments anthropometric and Brvnynks- Oseretsky. The results showed that among malnutrition, moderate nutrition and proper nutrition in adolescence and adulthood motor proficiency was not statistically different ages but among children ages motor proficiency were significantly different. In addition, no significant difference between motor proficiency age groups. It seems due to the impact of nutritional status on motor proficiency, and this issue was observed in this study at an early age; therefore, children are the most vulnerable in this context and considering the nutritional status of children is very important.
Dr Seyed Kazem Mousavisadati, Ms Sima Nazari, Dr Keyvan Molanorouzi,
Volume 21, Issue 25 (9-2023)
Abstract
The purpose of this research was to investigate the effectiveness of snorkeling on teaching basic swimming skills in non-swimmer children and teenagers with fear of water. This research was an experimental type with a pre-test and post-test design with a control group. The participants were 30 children (8.95±0.64 years old) and 30 teenagers (15.06±0.71 years old) non-swimmers who were afraid of water, and the participants of each group were randomly divided into two experimental and control groups (15 people in each group). After participating in the pre-test of skills of entering the water, opening the eyes in the water, gliding, orientation in the water and movement in the water and breath holding, all four groups entered a 20-session course of swimming training, so that the experimental group with snorkel and the control group without snorkel were taught basic swimming skills by an instructor. Then all four groups participated in the post-test. The data were analyzed by two-factor multivariate analysis of covariance (MANCOVA) and Benferoni's post hoc test. The results of the findings show that the main effects of age were not significant, but the main effects of training and the interactive effects of age and training were significant. Using a snorkel in children and teenagers did not have a significant effect on the skill of entering the water, opening the eyes in the water, but it had a significant and positive effect on the skills of gliding, orientation in the water and movement in the water. Also, the use of snorkel in children and teenagers had a significant and negative effect on breath holding skill. Considering that the results of the present study show the positive effects of using a snorkel on learning the skills of gliding and orientation in water and moving in water and its negative effect on breath holding skill in children and teenagers, it is recommended that the instructors who use snorkel to acclimatize children and teenagers to the water, provide additional training to improve the skill of holding their breath.
