رضا رجبی

The current study aimed to investigate that whether young people with mild intellectual impairments (II) having various levels of IQ have different physical fitness and body composition. Moreover, this study aims to answer this question that is there any association among IQ level, Body Mass Index, and physical fitness factors? A number of 1200 students from all Tehran’s special high schools were screened, and finally, 355 of them with mean age 24.6 ± 3.0 years, height 173.5 ± 6.8 cm, weight 78.6 ± 8.5 kg, and body mass index (BMI) 23.3 ± 2.8 kg/m2 were chosen to be included in the study based on including criteria. All participants had a mild II with the IQ range of 50 to 75 based on the Wechsler Intelligence Test. Participants' physical fitness was assessed by Eurofit special battery test. Body composition evaluation measured by Body Composition Scale. The results showed that there were significant differences in most physical fitness factors between males and females, except in dynamic balance and flexibility (P ≤ 0.05). There was a significant association between IQ levels with all physical fitness factors (P ≤ 0.05) except for flexibility. Different IQ levels were associated with physical fitness factors, so that II students with low IQ had lower physical fitness than those who had higher IQ. Practitioners should consider these differences when working with II people of different gender and different level of IQ.

Introduction: To examine the effects of a 6-week hopping exercise program on time to stabilization and perceived stability among athletes with chronic ankle instability. This is a randomized controlled trial.Materials and Methods: A total of 28 basketball players with chronic ankle instability (Mean±SD age; 22.67±2.88 y, Mean±SD weight: 80.47±8.48 kg, Mean±SD height: 186.82±3.09 cm) participated in this study and were randomly divided into two equal groups of 14 people each: 1. Experimental; and 2. Control. The experimental group performed hop exercises 3 times per week for 6 weeks. The control group received no intervention. Time to stabilization for anterior-posterior and medial-lateral components of ground reaction force, as well as ankle joint function assessment tool were found before and immediately after the exercise program. Descriptive statistics, independent t-test, and paired sample t-test were used to analyze the data at the significance level of 95% (α≤0.05).Results: The 6-week hopping exercise program led to a significant decrease in the time to stabilization of medial-lateral and anterior-posterior of ground reaction force and also a significant increase in the score of ankle joint function assessment tool (p <0.05).Conclusion: Given the effectiveness of hopping exercises, postural control deficit, and time to stabilization in sport exercises, it is suggested that these selected exercises be used in training and rehabilitation protocols.

Background: Functional Movement Screening (FMS) is a tool to determine the individual's potential for the possibility of sports injury. Aim: The purpose of this study was to determine the relationship between functional movement screening scores with flexibility factors, speed and agility in male students in Lorestan province. Materials and Methods: 370 male volunteer students aged 15 to 17 years participated in this study. Spearman correlation coefficient was used to determine the relationship among flexibility, power, speed and agility. Results: The present study showed that there were significant relation between scoring screen for functional movement and flexibility of the left leg, long jumping, high jumping in 15- year- old students. There were significant relations between scoring screen for functional movement and flexibility, flexibility of the right leg, flexibility of the left leg, long jumping, high jumping in 16- year- old students. In addition, in the 17- year- old students, there were significant relation between scoring screen for functional movement and flexibility of left leg, flexibility of the right leg and height jumping. Conclusion: In general, there were significant relation between FMS scores and flexibility and power in three groups of students. The probable cause of this connection can be attributed to in- line lunge tests, Hurdle step, active straight-leg-raise and deep squat, which are directly related to flexibility and power. Therefore, in order to improve the FMS scores of students, it is recommended that students be flexible and able to include in their training program