JOURNAL OF RESEARCH SPORT REHABILITATION
Year:2019 | Volume:6 | Issue:12 |Papers Count:9

Background and Aim: Currently exercise prescription is one of the most common correction procedures for lumbar hyperlordosis deformity. Nevertheless, despite the lumbopelvic stability dysfunction in individuals with increased lordosis, less attention has been paid to the issue in the prescribed exercises. The purpose of this study was to investigate the effectiveness of an eight week exercise program including stretching, resisting with emphasis on endurance and stability exercises on lumbopelvic stability of women with lumbar hyperlordosis deformity. Materials and Methods: 30 female students aged between 18 and 25 with lumbar curvature angle greater than or equals to 54 degrees were selected purposefully. Afterwards they were randomly divided in two experimental and control groups of 15 subjects. The experimental subjects participated in an eight week exercise program. Lumbopelvic stability was measured by McGill stability tests in pre-and post-test. Data were analysed by using descriptive and inferential statistical methods. Results: Results indicated that the lumbopelvic stability index for experimental group was increased significantly (p=0. 001). Furthermore, the effectiveness of provided exercise program in increasing lumbopelvic stability which was measured based on Cohen's d method, was very large. (Effect size=3. 16) Conclusion: It might be considered that individuals with lumbar hyperlordosis face with lumbopelvic stability dysfunction. According to the mentioned results a desired effectiveness on increasing rate of lumbopelvic stability is achievable by presenting a purposeful exercise program. Therefore using such program is recommended to patients with similar deformity.

Background and aim: Low back pain (the reason for the movement restrictions) is lead to reduce the core body stability. The study aim was to determine the effect of the core stability exercises on unstable surface (Swiss ball) on pain intensity, quality of life(QOL) and muscle endurance of women with idiopathic chronic low back pain(ICLBP). Materials and methods: 30 women with ICLBP with an average age of 36. 73± 9. 44years, height 158. 00± 6. 03cm and body mass66. 83± 10. 77kgwere referred to a specialist physician. Sampling was conducted in the form of targeted and available. They were divided into two groups, experimental group(n=15, participate in exercises) and control group(n=15, no exercise). Before and after two months, the pain intensity, the QOL and endurance of trunk extensor and flexor muscles were measured by the Quebec questionnaire, SF-36questionnaire, sit-up test and sorenson test, respectively. The exercise program was performed for 8 weeks, 3 sessions per week(duration of 60minutes). The paired t-test and covarians analysis were used for statistical analysis(P<0. 05). Results: There were the significant reduction in the pain intensity of experimental group, post-training(27. 80± 18. 18)compared to pre-exercise(35. 00± 20. 78)(P<0. 0001); and the significant increase in the QOL post-training(115. 50± 29. 27)compared to pre-exercise(99. 31± 31. 43)(P<0. 002). 26% and 38% the significant increase were observed in the Sorensen and sit-up tests of the experimental group, respectively(P<0. 008). There was the significant difference between the experimental and control groups in all the variables, after exercise(P<0. 01). Conclusion: Core stability exercises with Swiss ball focus on trunk muscles and increase muscle endurance. The increase muscle endurance led to reduce pain intensity and improve QOL. These exercises are recommended for these patients.

Background and aim: Dynamic knee valgus during deceleration and drop landing in sport activities is the cause of many acute and chronic knee injuries. The aim of this study was to investigate the effects of plyometric exercise on pelvic and knee alignment in female with dynamic knee valgus Methods: In this randomize controlled trial, 26 female with dynamic knee valgus were randomly assigned into experimental and control group. Knee valgus and pelvic drop angle have been calculated using two dimensional evaluation method while performing single leg drop landing test. During 8 weeks, the experimental group participated in plyometric exercises, but the control group participated only in their routine training sessions. Data were analyzed by Mixed Repeated Measures ANOVA (p≤ . 05). Results: The results of study showed knee valgus angle was improved in experimental group compared to the control (p≤ . 05). The results showed there was no significant difference between control and experimental groups in pelvic drop angle before and after training. Conclusion: The results of this study provide evidence of the positive effect of plyometric exercises on the lower limb kinematics and improvement of knee control in the frontal plane in female athlete with knee dynamic valgus. Therefore, according to the results of this study, we can say that eight weeks of plyometric exercises in female athlete with knee dynamic valgus can reduce the risk of modifiable ACL injury, such as biomechanical factors.

The aim of the present study was the effect of 12 weeks use of custom insoles and exercise in water distribution pattern pressure plantar 10-14-year-old girls with flat foot. The subjects of this study were 20 girls with flexible flatfoot which were randomly divided in the two group exercises in water and the use of insoles. The participants were measured by using foot scan device before and after the training protocol of all subjects’ dependent variables (Surface area, the maximum peak pressure and contact time). The exercise group performed their activity in water for 12 weeks (3 sessions of 90 minutes in the pool) and the other group used the customized insoles for the same period. Statistical analysis showed that, there is not a significant difference in the pretest and post-test, of the pressure distribution and arch index during the use of customized insole. But the effect of swimming training was observed significant difference the maximum power and maximum pressure on other areas of the fingers. According to the findings, we can conclude that exercise in water improves pressure distribution pattern of flatfeet and longer duration of using insole might be needed to improve the situation.

Background and Aim: Using anthropometric data can affect selecting the talented athletes, purposeful sporting guidance of newcomers, improving athletic performance, standardizing equipment and preventing injury. Therefore, the purpose of this study was to present a norm of anthropometric characteristics in Iranian athletes with disabilities. Materials and Methods: This research was a descriptive study. The population of this study was all athletes with disabilities participated in the national championship competitions in different sports. 188 male athletes (age 30. 23± 12. 21 year) and 109 female athletes (age 30. 27± 3. 22 year) participated in this study. Mean, standard deviation and normal range of values were calculated. Analysis was performed using SPSS version 18. Results: Normative data in selected parameters are: arm girth relaxed 33. 04(± 4. 89) for male and 28. 51(± 4. 88) for female, arm girth flexed and tensed M: 35. 7(± 4. 94) and F: 30. 32(± 5. 09), biacormial breath M: 42. 11(± 3. 9) and F: 27. 91(± 2. 44), humerus breadth M: 7. 19(± 0. 59) and F: 6. 31(± 0. 54), humerus length (acromiale-radiale) M: 31. 9(± 2. 35) and F: 29. 31(± 1. 63), forearm length (radiale-stylion) M: 25. 74(± 1. 64) and F: 24. 05(± 1. 86), hand length (mid-sylion-dactylion) M: 18. 67(± 1. 64) and F: 17. 91(± 1. 14), arm span M: 178. 59(± 8. 09) and F: 155. 11(± 10. 53), sitting height M: 91. 57(± 5) and F: 80. 04(± 6. 19), stretch stature M: 171. 25(± 10. 15) and F: 155. 67(± 12. 18) and brachial index M: 81. 2%(± 4. 31) and F: 82. 45%(± 6. 82). Conclusion: These findings can be useful for purposeful sporting guidance of newcomers to choosing suitable sports with considering biomechanics, ergonomics, performance and injury prevention aspects.

Purpose: The amount and distribution of ground reaction forces(GRF) and loading rates during gait are related to the injuries of the lower limb joints. One of the methods to change GRF and loading rates is using insoles. The aim of this study was to analyze the effect of insoles on GRF and loading rates during gait in individuals with ankle instability. Method: Eleven healthy male soccer players and eleven patients with functional ankle instability participated in this study. Using force plates, the components of GRF were measured during gait under the two conditions of with and without insoles. Maximum GRF and their related peak time, loading rate were recorded. . ANOVA and MANOVA was used to analyze the data (α = 0. 05). Findings: Compared to the group without insoles, in the other group, wearing an insole caused an increase in the initial peak of the vertical reaction force (p = 0. 01) at the moment of the heel’ s contact with the ground (p <0. 05). There was no significant difference in the loading rates of the two groups. In the mid stance phase, the maximum vertical GRF of the group wearing insole was significantly lower than that of the control group. Conclusion: The results showed that the insole did not modify the GRF it did not reduce loading rates. Therefore, therapists should pay particular attention to reducing these forces by modifying motor strategies and designing appropriate shoes and exercise programs for strengthening muscles.

Background and objective: In order to reduce the pathological effects of limited ankle dorsiflexion, stretching exercises are prescribed. Therefore, the present study aimed to investigate the effectiveness of functional and extra-functional stretching of gastrocnemius-soleus complex on selected kinematic and kinetic gait variables of ankle joint. Materials and methods: This study was carried out on 10 professional athletes which suffered from gastrocnemius soleus muscle shortness as a functional training group and ten athletes with gastrocnemius soleus shortness as extra-functional group based on the criteria of entry and exit. The amount of kinematics and kinematic values determined by Vicon and Kistler system. Comparison of within group were done by paired t test and between groups done by Ancova. Results: Comparison of pre and post test showed that the average ankle dorsiflexion, stance time and time to heel off in functional group increased significantly during stance phase of gait. Also, pronation time decreased significantly in functional group. The impact ground reaction force and time to peak of this force increased significantly in extra-functional group. Finally, differences between the groups showed that, time to heel off, pronation and dorsiflexion angle of functional group compare to extra-functional group was significantly different. Conclusion: Increased heel strike pattern provides increase in dorsiflexion range of motion, time to heel off during stance phase of gait cycle. Therefore, when an increase in ankle dorsiflexion or time to heel off during stance phase of ambulation is a clinical goal, increased heel strike pattern maybe is usefulness.

Background and aim: Anterior cruciate ligament (ACL) injuries are common in soccer and motion patterns are believed to play a key role in the incidence of non-contact ACL injuries. The aim of this study was to investigate the effect of the FIFA 11+ program on kinematical risk factors related to anterior cruciate ligament (ACL) injury and durability of the results in male elite-youth soccer players. Materials and Methods: Twenty-four male soccer players (mean ± SD: age = 16. 79 ± 1. 18 years, height = 174. 17 ± 8. 12 cm, mass = 62. 45 ± 10. 01 kg, experience = 6. 96 ± 1. 26 years) participated in this study and randomly were divided into two groups, intervention and control (n = 12 per group). The experimental group performed the FIFA 11+ program 3 times per week for 8 weeks whereas the control group just performed their regular warm-up program. Results: The mixed-repeated measure showed that there was a significant improvement in the landing pattern between the pre-test and post-test for the 11+ group (P=0. 006) while no significant was found improvement between the post-test and retention-test; after one month of post-test (P=0. 146). Conclusion: It can be concluded that the FIFA 11+ program can improve the landing pattern during the real-world scenario in male elite-youth soccer players and this likely can be effective in reducing non-contact ACL injuries. However, due to the failure to maintain the effects of this program on the landing pattern, the necessity of continuation of performing the 11+ program is felt.

Background and aim: Rebound therapy training as a new training method that stimulates the musculoskeletal system are considered by researchers and Rehabilitator. The purpose of this study was to examine the effect of 8 week Rebound therapy training on static and dynamic balance and strengths of lower extremity in Attention Deficit / Hyperactivity Disorder children. Materials and methods: Thirty ADHD children with mean age (8. 07± 1. 1) Weight (25. 6± 7. 5) and Height (125± 11. 1) voluntarily participated in this semi-experimental study and were divided into control(n=15) and experimental groups(n=15) randomly. The Y Balance test and Flamingo test was used for evaluation of dynamic and static balance respectively. After and before rebound therapy training the strengths Quadriceps, hamstrings, dorsi flexor and plantar flexor were evaluated with hand-held dynamometer. During 8 weeks of workouts, the experimental group performed the Rebound therapy training three sessions per week, each session lasted 45 minutes. independent t-test was used to analyze data. Results: There was significant increases in static and dynamic balance in anterior direction, internal posterior, external posterior and total balance and strengths lower extremity in the experimental group compared with the control group (P<0/05). Conclusion: Finding indicated that rebound therapy training can be effective on the improvement of the static and dynamic balance and the strength of the lower extremity muscles. in ADHD children.