Background: Pregnancy can be a special but potentially stressful time for women. The routine life of female athletes who become pregnant may be challenged, and professional athletes may be more likely to experience psychological disorders during this time.Aim: The objective of this study was to compare the stress, anxiety, and depression levels in professional and novice pregnant athletes.Materials and Methods: 106 female volleyball players (42 professional and 64 novices) were selected as the research sample, based on their competitive levels and study participation criteria. Data were collected using a personal information form and the DASS-21 questionnaire developed by Lovibond 1995.Results: The results of the MANOVA test showed that pregnant professional athletes had significantly higher levels of stress and depression compared to pregnant novice athletes (P≤0.05). Although professional athletes had higher levels of anxiety than novice female athletes, there was no statistically significant difference between the two groups on this scale (P≤ 0.05).Conclusion: It seems that female athletes at high competitive levels experience increased psychological challenges because of the added responsibilities of motherhood, in addition to their sports commitments. It is recommended to prioritize physical and psychological interventions and strategies to enhance the mental well-being of these individuals.
Background: In the past few years, the increasing importance of the impact of exercise on physical and mental health has caused mobility wave around the world. Nevertheless, in Iran, a few people participate in physical activities. Aim: This study aimed to assess the reasons of nonparticipation in physical activity in Iran. Materials and Methods: This research is a descriptive and analytical approach conducted as a field study. The population of this research includes all people in Iran. Results: The results revealed that this factors are effective: three factors in individual characteristics variable (lack of sports skills, fatigue and impatience, fear of injury), four factors in inhibitor variable (lack of access to sports facilities and venues, poor quality of sports facilities and venues, being too busy, low income), four factors in environmental driving variable (lack of proper planning for sports, lack of awareness of the advantage of sport activities, feeling embarrassed after the loss, low number of exclusive sports facilities) and two factors in sports features variable (fear of winning and losing in sports, high intensity and duration of sport activities). Conclusion: Findings indicated that the environmental variable and inhibitor variable were more effective than two other variables, hence authorities and planners should pay more attention to these obstacles and problems with better management and provision of infrastructure facilities. These problems must be solved and strategies must be developed for promotion of sports in the country.
Background: Fatigue as one of the physiological factors can affect the physical performance of athletes. This issue is more important in young athletes and can expose them to injury. Aim: The purpose of this research was to investigate the effect of functional fatigue on the performance and landing mechanics of adolescence taekwondo athletes. Materials and Methods: This was a semi-experimental study. Participants were 20 male teenage taekwondo players. Pre-fatigue measurements included side-jump tests, figure-8 hop tests, and single-leg triple jump tests, as well as a lower limb biomechanics assessment using a landing error scoring system. After the functional fatigue protocol was applied, all the pre-fatigue variables were evaluated again. In order to examine the intra-group changes of the research variables in the pre and post-test stages, the paired t-test at a significance level of P≤0.05 was used. Results: The paired-t test results revealed that following fatigue induction, performance in the side-jump and figure-8 hop tests significantly deteriorated (P<0.05). Additionally, performance in the single-leg triple hop test declined (P<0.05). Moreover, landing error significantly increased (P<0.05). Conclusion: The finding of this study indicated that after applying fatigue, the subjects' performance decreased and the biomechanical error of the lower limbs increased. Fatigue can significantly impact adolescent taekwondo athletes' performance and biomechanics. So, taekwondo coaches should implement effective strategies to mitigate fatigue, enhance athletes' conditioning, and optimize their performance in training and competitions.
The hosting of Qatar for the 2022 FIFA World Cup and the announcement of Saudi Arabia's preparation for the 2034 made the world wondered for the new Middle East in the coming years. On the one hand, political experiences such as war and extremism groups, and on the other hand, the main source of oil and gas supply in the Middle East is a proof of the need for countries in the region to use football as a lever in changing the international image. The purpose of the current research is to investigate the position of football and the development process of football in the Middle East region, focusing on the three countries of Qatar, Saudi Arabia and UAE, and finally, the reason for Iran's conflicts with some of these countries in region. While the sport has a critical role on empowering the international prestige of Gulf states, football is the critical part to fill the power vacuum in region. Football has two minor (media, airlines and tourism) and micro (Geopolitics, geo economy, competition and political economy) impression on region.
Background: The functional movement screen is developed to examine individual’s movement patterns through seven functional tasks.Aim: This study was conducted to examine the effect of core muscle fatigue on functional movement screening (FMS) scores in female athletes.Materials and Methods: The study has a pre-test-post-test design. The statistical population included female athletes (18-28 years old) in Tehran with at least two years of sports experience (3 days a week), of which 40 were selected as samples. In this study, core muscle fatigue was examined using the Plank test, before and after which the subjects performed the FMS test. After ensuring the normal distribution of the data through the Shapiro-Wilk test, the effect of core muscle fatigue on the FMS test was examined using Wilcoxon and paired t-tests, and Cohen's D measure was used to evaluate the effect size. The data were analyzed through SPSS 24 software. The significance level in all tests was P≤0.05.Results: According to the results, core muscle fatigue significantly decreased the scores of the deep squat (P=0.001), hurdle step over (P=0.002), in-line lunge (P=0.001), stability push-up (P= 0.001), and rotary stability tests (P= 0.001) but did not significantly affect the scores of the shoulder mobility (P=0.317) and active straight leg raise (SLR) tests (P=0.763). Moreover, core muscle fatigue affected the total score of the FMS test (P=0.001), with the average score decreased by 4.32 after applying the fatigue protocol.Conclusion: Core muscle fatigue significantly reduced the FMS test scores with a medium to large effect size in female athletes.
Background: The modern increase in mechanical and sedentary lifestyles has led to a rise in musculoskeletal abnormalities within society. These physical irregularities may influence individual mental health.Aim: This study explores the correlation between upper body musculoskeletal abnormalities and mental health among female students at Payame Noor University, Bushehr.Material and Methods: A total of 173 female students were selected via convenience sampling for this cross-sectional study. The presence of scoliosis, forward head posture, kyphosis, and increased lordosis was assessed using a flexible ruler, the New York Test, a chessboard, and a scoliometer. Body mass index (BMI) and waist-to-hip ratio (WHR) were also measured. Participants completed the General Health Questionnaire (GHQ-28). Statistical analysis was conducted using one-sample t-tests and Pearson’s correlation coefficient, with a significance threshold set at P< 0.05.Results: The findings indicated that lordosis was significantly more prevalent among students aged 15 to 24 (t=31.5, P= 0.001) and those aged 25 and above (t=57.3, P= 0.003), compared to societal norms. Other assessed abnormalities were within normal ranges. Mental health vulnerabilities were noted in specific domains; however, no significant correlation was found between mental health status and the physical abnormalities studied.Conclusion: While lordosis was notably more common among the study's participants than in the general population, the incidence of other musculoskeletal abnormalities aligned with societal averages. No substantial impact of these physical conditions on mental health was observed. It is advisable to integrate educational initiatives and corrective exercise programs into the curriculum for educators, coaches, and students to promote overall well-being.
Background: In football, research on halftime recovery methods is limited. Aim: The aim of this study was to investigate the effects of three different recovery postures during the half-time break on blood lactate and pH, RPE and body temperature of football players. Materials and Methods: Thirty-four male division I Tabriz football players, with an average age of 25.82±4.1 years and Vo2max of 56.30±8.61 ml/kg/min were randomly assigned to three recovery posture groups: (1) seated posture (Sit, n=11), (2) supine posture (Sup, n=11), and (3) supine posture with elevated legs (Sup Lu, n=12). Each group followed their specific recovery protocol 10 min after a simulated half-football game. Measurements were taken before (T1), immediately after (T2), and five minutes after (T3) recovery. Results: Both the Sup and Sup-Lu groups exhibited a significant decrease in blood lactate and an increase in pH from T1 to T3, but there was no significant difference between these two groups (P> 0.05). Body temperature did not show significant variation within or between the groups (P>0.05). A significant difference was observed in the mean changes of RPE from T1 to T3 between the groups (P<0.05). Conclusion: Both the Sup and Sup Lu recovery postures were found to effectively reduce the fatigue level of football players during the half-time break compared to sitting, without lowering body temperature.
Background: The research showed that having high scientific intelligence in students does not necessarily imply higher emotional intelligence or better motor efficiency, and these relationships may vary among individuals with different levels of intelligence.Aim: The present study was conducted to compare the motor efficiency and emotional intelligence of ordinary and gifted girls’ students aged 12-15 years.Materials and Methods: The present research was a causal-comparative study. This study was conducted on 100 participants two equal groups (50 gifted girls’ students from National Organization for Development of Exceptional Talant (NODET) and 50 ordinary girls’ students from ordinary schools) using random sampling method from 6 ordinary schools and 3 NODET schools in the first secondary level in Shiraz. The Trait Emotional Intelligence Questionnaire– Adolescent Short Form (TEIQue-ASF) and the Bruininks- Oseretsky Test of Motor Proficiency, Second Edition (BOT-2) were used to measure emotional intelligence and motor efficiency, respectively.Results: The results showed that the motor performance of gifted students was significantly better than ordinary students (P=0.029). However, there was no significant difference in the emotional intelligence variable between the two groups (P<0.05).Conclusion: The research results indicated a significant difference in motor efficiency between gifted and ordinary students. This finding underscores the need for a more in-depth investigation into the potential causes of this disparity. Factors to consider include variations in the physical environment of schools, access to sports facilities, the role of physical activity and sports outside of school, and the differing social and economic backgrounds of families.
Background: Physical education (PE) plays a crucial role in fostering an enjoyment of physical activity (PA) and developing physical literacy in students. This, in turn, contributes to lifelong health and well-being. Aim: The study explored the association between teachers’ perceived physical literacy, students' enjoyment of PA, and physical literacy. This was done by investigating the mediating role of teachers' self-efficacy in teaching PE. Materials and Methods: The sample included 40 physical education teachers and 100 students in 7 to 9 grades of secondary education, totaling 140 participants. The teachers completed the Physical Education Teachers' Perceived Physical Literacy Instrument (PPLI) and Teacher Self-Efficacy Scale (TSES). In contrast, the students completed the Physical Activity Enjoyment Scale (PACES) and Adolescent Physical Literacy Questionnaire (APLQ). Results The results from the structural equation modeling confirmed the model's fit and showed that teachers’ perceived physical literacy and self-efficacy have a direct and positive relationship with students' enjoyment of PA and physical literacy. Additionally, teachers' self-efficacy indirectly mediated the relationship between teachers’ perceived physical literacy and students' enjoyment of PA and physical literacy. Conclusion: The results underscore the importance of teachers' perceived physical literacy in fostering positive student outcomes concerning PA by mediating the role of teaching self-efficacy.
Background: Heart rate variability (HRV) as a non-invasive indicator measures the activity level of the autonomic nervous system. Exercise has significant positive effects in increasing HRV indicators, which ultimately leads to cardiovascular health. People with panic disorder (PD) generally have low HRV indices and are more exposed to cardiovascular risks.Aim: The aim of the present study is investigating the effect of 12 weeks of hiking training on HRV of women with PD.Materials and Methods: In this semi-experimental clinical trial, 18 women with PD with average panic scores (45.00±19.55) as determined by Albany Panic and Phobia Questionnaire (APPQ) in two training group (12 weeks of hiking training with 70% to 80% MHR, three sessions a week, each one an-hour, and control group (without any regular physical activity) participated randomly. HRV of subjects was measured by Holter monitoring device (with 7 leads VX3+ SN 17570 made in USA) while resting and lying back for 20 min before and after 12 weeks.Results: The results of covariance analysis showed that panic scores (P≤0.001) and HRV factors including: SDNN (P≤0.05), SDNN index (P≤ 0.01) and TP (P≤0.03) of the subjects in the training group improved significantly but HF, LF, LF/HF, did not show significant changes (P≥0.05).Conclusion: It seems that 12 weeks of hiking training improves some of the HRV indices of women, which prevents the risk of cardiovascular diseases, and also reduces the symptoms of panic in women.
Background: Alzheimer’s disease (AD), the most prevalent neurodegenerative disorder, is characterized by amyloid-beta (Aβ) plaque accumulation, neurofibrillary tangles, neuronal death, inflammation, and oxidative stress.Aim: We investigated the effects of treadmill exercise and intranasal insulin on spatial memory, blood glucose level, and Physical growth indicators including weight, head circumference, and tail length.Materials and Methods: Seventy-two male Wistar rats, aged 8 weeks were into 9 gtoups at random (control, Sham, Aβ, Aβ + EX, Aβ +PINS, Aβ + INST, Aβ + EX + PINS, Aβ + EX + INST, and Aβ + EX + PINS + INST). We discovered that rats receiving Aβ25-35 had impaired spatial memory, which was associated with weight loss, brain growth retardation, Tail Length, and elevated blood glucose levels. Data from each trial was statistically analyzed using IBM SPSSStatistics 22 software, Two-way ANOVA, and post-hoc analysis Tukey test. The cut-off for statistical significance was P≤0.05.Results: Our results show that the improvement of spatial memory due to the improvement of metabolism and growth indicators can be affected by pretreatment exercise and intranasal insulin. Also, exercise training and intranasal insulin improved spatial memory and prevented brain growth retardation, increased blood glucose, weight loss, and tail length in animals treated with Aβ25-35.Conclusion: Exercise can amplify the positive benefits of intranasal insulin treatment on memory. The results of our research showed that exercise and insulin can prevent brain growth retardation and prevent spatial memory disorders by improving glucose metabolismy.
Background: In recent years, the examination of the impact of various types of different exercises as the key influential components on balance has gained considerable popularity. Numerous studies have investigated the effects of diverse exercise modalities on the enhancement of balance abilities. Aim: The aim of this research was to compare the effects of different types of learning (explicit and implicit) on the balance of elderly individuals. Materials and Methods: Forty-two elderly participants (both women and men), after initial health assessments and medical history reviews, voluntarily participated in the study. They were randomly assigned to three groups: explicit learning group (14 participants), implicit learning group (14 participants), and control group (14 participants). Before the implementation of the targeted learning exercises, the static balance of the participants was assessed using the Flamingo Test, and dynamic balance was measured using the Timed Up and Go (TUG) test. After two sessions of learning exercises, the participants were reassessed. Statistical analysis was conducted using descriptive statistics (mean and standard deviation) and inferential statistics (ANCOVA and Shapiro-Wilk test) at a significance level of P<0.05. Results: The findings indicated that there was no significant difference between the groups in the pre-test, but after performing the learning exercises, the static balance of the implicit learning group showed a statistically significant improvement compared to the explicit learning group and the control group. However, there was no significant increase in dynamic balance performance in any of the groups. Conclusion: The results of this study support the claim that implicit learning exercises can have a positive and significant impact on the static balance performance of elderly individuals. It was also shown that implicit cognitive training had no effect on dynamic balance, which may indicate the important role of other variables such as motor control abilities.
Background: Pahlavani wrestling is one of the ancient sports in Iran. However, very few studies have been conducted on various aspects of it.Aim: To investigate the body composition, lipid profile, quality of life, self-concept, and nutritional knowledge of Pahlavani wrestlers of Kermanshah city.Materials and Methods: Fifty-seven adult Pahlavani wrestlers participated in this study. They completed the quality of life, self-concept, and nutritional knowledge questionnaires on three consecutive days, and then, on two separate days, their body composition and lipid profile were also measured.Results: The quality of life, muscle mass percentage, and bone and mineral content were significantly higher than the normal values (P˂0.05). Also, the lipid profile was in a normal state. Conversely, the self-concept, nutritional knowledge, nutritional attitude, and nutritional practice were significantly lower than the normal values of these variables (P˂0.05). Finally, the BMI was significantly lower than the normal value (P˂0.05) and the fat percentage and visceral fat index were not significantly different (P˃0.05) from their normal values.Conclusion: The results indicated that Pahlavani wrestlers of Kermanshah are in favorable conditions in many physical and body composition health indicators, which somehow shows the possible positive effects of this sport on different aspects of health. However, Pahlavani wrestlers had a considerably lower self-concept and nutritional knowledge than the normal values.
Background: Neuromuscular training (NMT) and supplementation with essential minerals such as calcium (Ca), magnesium (Mg), and zinc (Zn) may enhance muscular reaction time (RT) and electromechanical delay (EMD). However, research on this topic, particularly among taekwondo athletes, is limited.Aim: This study aimed to evaluate the effects of NMT and Cal-Mg-Zn supplementation on RT and EMD in taekwondo athletes.Materials and Methods: Sixty athletes from a single taekwondo club in Tabriz, Iran, were randomly assigned to four groups of fifteen: Control, Ca-Mg-Zn, NMT, and Cal-Mg-Zn + NMT. NMT was conducted in 60 min sessions, four times a week, for six consecutive weeks, prior to main taekwondo training. RT and EMD were measured using electromyography before the intervention (T1), three weeks after (T2), and six weeks after (T3). Data were analyzed using SPSS with a confidence level greater than 0.95, employing repeated measures ANOVA and Bonferroni post hoc tests.Results: No significant differences in RT and EMD were observed among the groups at baseline (P> 0.05). In both post-test assessments, the Cal-Mg-Zn + NMT group exhibited significantly lower RT and EMD compared to the other groups (P< 0.05).Conclusion: The inclusion of NMT with zinc supplementation can effectively improve RT and EMD, thereby enhancing the athletic performance of taekwondo athletes.
Background: Rapid modern world changes have impacted efforts to educate children with abilities and skills suitable for societal goals. Aims: The aim of the study was to investigate the effects of active video games and selected movement games on children’s physical literacy and self-concept. Materials and Methods: Sixty 8-12-year-old children from Ahvaz City were selected and assigned into three experimental and one control groups. Physical literacy and self-concept were assessed in pretest. The active video game group played Xbox Kinect bowling, athletics, tennis, soccer, volleyball, basketball games. The selected movement game group played researcher-designed games. The mixed game group engaged in both activities over 12 video and 12 movement game sessions for 8 weeks, with 30-minute per session. Data were analyzed by MANOVA and student t-test. Results: The results showed that active video games and selected movement games influenced children’s physical literacy and self-concept. Further, significant differences were found between the experimental groups' physical literacy and self-concept outcomes. The selected movement game and mixed game groups performed better in these measures than other groups. Conclusion: Results suggest parents and teachers consider implementing the selected movement games and active video games to bolster physical literacy and self-concept in children.
Background: Cardiovascular disease is a significant contributor to mortality in diabetic patients. Despite the potential benefits of concomitant and complementary training in diabetic patients, there is a paucity of evidence in this area.Aim: The objective of this study was to investigate the effect of aerobic training in conjunction with a hydroalcoholic extract of the fruit of Qaraqat on superoxide dismutase, glutathione peroxidase, total antioxidant capacity, and malondialdehyde in the heart tissue of male rats with type 2 diabetes.Materials and Methods: 24 male rats aged 8 weeks were diabetic with a high-fat diet (60%) and streptozotocin injection. They were randomly divided into four groups: (1) aerobic training (AT), (2) supplementation (Sup), (3) Aerobic training+ supplement (AT+Sup), and (4) diabetes control (Con). The training protocol included running on a treadmill at a speed of 5-24 m/min for 10-60 min, according to the principle of overload. Glucose, insulin, insulin resistance, and MDA, TAC, GPX, and SOD of heart tissue were measured. Statistical tests of two-way variance and post hoc Bonferroni were used using SPSS software at a significance level of P<0.005.Results A significant decrease in glucose levels, insulin resistance, and MDA (P<0.005) was observed in the intervention groups following eight weeks of training and supplement intervention, in comparison to the Con group. Also, the amount of insulin in Sup and AT+Sup groups exhibited a notable decline in comparison to Con and AT groups (P<0.005), as well as a substantial increase in the levels of SOD (P=0.001) and GPx (P<0.005), and TAC (P<0.005) was observed.Conclusion: Diabetes is associated with elevated MDA levels, which are reduced by aerobic training and supplementation. Furthermore, the administration of a training intervention and the utilization of a supplement have been demonstrated to elevate the levels of SOD, TAC, and GPx.
Background: COVID-19 transmission in team sports is common, but it's uncertain if face masks impact handball players' performance. Aim: This study investigated the effects of wearing surgical face masks during handball exercise for four weeks on athletic performance. Materials and Methods: Thirty-four adolescent handball female players and 17 trained females as the control group were selected in this study. Players were divided into two groups: the mask group (n= 17; age: 12.63±0.67 years, BMI: 20.61±1.19 kg/m2) and the unmasked group (n= 17; age: 13.45± 1.03 years, BMI: 21.08±1.46 kg/m2), who underwent 4-week training with and without face masks, respectively. Performance tests were conducted before and after the training program, which include: countermovement jump (CMJ), squat jump (SJ), 10m, 20m, and 30m sprint, medicine ball throw, and Yo-Yo Intermittent Recovery Test Level 1 (Yo-YoIRT1). Results: After four weeks, both mask and unmasked groups showed significant improvements in CMJ, SJ, 10m, 20m, and 30m sprint, medicine ball throw, and Yo-YoIRT1 (P≤ 0.05). Conclusion: This study concludes that adolescent handball players can safely use face masks during physical activity without experiencing negative effects on their athletic performance.
Background: The present research was conducted regarding the prediction of socio-cultural and individual restrictions on the amount of regular physical activity in female people during the outbreak of covid-19.Aims: The present study was conducted with the aim of predicting socio-cultural and individual constraints to regular physical activity in youth during the outbreak of covid-19.Materials and Methods: This research is descriptive correlational research. 371 females with an average age of 24.27±0.17 years, participated via a random method. Questionnaire based on Basnef model constructs and the International Physical Activity Questionnaire (IPAQ) were used to collect data. Data were analyzed using Chi-square, logistic regression, and linear regression tests.Results: The research findings indicate that there is a significant relationship between background variables and regular physical activity. Subjective norms, behavioral intention, and enabling factors (characteristics of sports facilities and equipment) were considered important predictors of regular physical activity among female people. Also, subjective norms and attitudes (participation motivation) affect the behavioral intention of doing physical activity in young people.Conclusion: Therefore, it is recommended that education officials in universities, anticipate the necessary infrastructure to provide sports halls, equipment, and suitable facilities in order to improve the level of physical activity in young people. Furthermore, families identify their sport activity interests and as much as possible support them financially and spiritually. Young people also should do weekly physical activities by forming friendly groups such as being members of student sports teams.
Background: Myofascial pain syndrome (MPS) is caused by sensitive spot in muscles that are known as trigger points (TPs) which can have complications that can affect person's quality of life. Massage and self-myofascial-release (SMR) are two non-invasive techniques which are used to reduce the side effects of TPs. Aim: The present study is intending to compare the effect of the two mentioned techniques in reducing complications caused by TPs such as reduced ROM and pain in women with MPS of the trapezius muscle. Materials and Methods: 45 women aged 20-25 years with active TPs in the trapezius muscle were randomly divided into two experimental groups and one control group. The research process was one week which consists of pretest, 5 days intervention and post-test. The variables included pain measured by OBER questionnaire and ROM of neck measured by goniometer. Results: The results of the study showed that massage can have a significant effect on the ROM of neck including neck flexion (P= 0.00), extension (P= 0.00), left (P= 0.00) and right (P= 0.004) lateral flexion and left (P=0.00) and right (P= 0.04) rotation (P<0.05). Both massage and SMR interventions had a significant effect on reducing pain measured by OBER questionnaire (P<0.05). Conclusion: Findings of this study showed that myofascial release massage can have better effects on increasing neck ROM. Both treatment modalities are useful in reducing pain. Based on the obtained results, we recommend that specialists use massage intervention instead of myofascial self-release (SMR) for individuals suffering from MPS and neck pain, in order to achieve quicker and more extensive results.
Background: Late diagnosis and treatment of congenital hip dysplasia (CHD) can cause many problems in a person's daily life. Aim: Therefore, the present study aimed to investigate and compare the effect of therapeutic exercises and education on parents’ weight bearing, range of motion, joint stability, and disease complications in 4-10-year-old children with congenital hip dysplasia. Materials and Methods: This semi-experimental study was conducted with a pre-test and post-test design on 40 children with CHD in two groups of 20 people: therapeutic exercises and education. The training program of the therapeutic exercises group was done on a middle day for 8 weeks from 60 to 90 min in each session. Also in the training group, parents were taught about the correct methods of sitting, standing, and lying down. Before and after the intervention, the subjects were evaluated by the researcher in terms of performance indicators. These indicators were evaluated with specialized tests (weight bearing with standing flexion test, range of motion with stork test, and joint stability with sitting test). The analysis of variance was used to compare the differences between groups in terms of the effect on the indicators. Results: Based on the findings, the difference between the two groups of therapeutic exercises and education to parents was significant in weight-bearing and range of motion (P=0.000 and P=0.000), but in hip joint stability and disease complications, no significant difference was observed (P=0.269 and P=0.163). Conclusion: Considering the greater effectiveness of the therapeutic exercises, it is suggested to design a codified program in the physical education program of U10 children to correct skeletal abnormalities, especially hip dysplasia.
