فهرست مطالب مرضیه ضیا

The aim of this study was to investigate the effect of specific SportsMetricsTM training on core stability, tuck jump scores, and hops in soccer players.

The present study is a randomized controlled trial. The subjects of the study were 29 soccer players with three years of experience in soccer clubs. Subjects were randomly divided into experimental (n = 14) and control (n = 15) groups. The experimental group performed soccer-specific SportsMetrics exercises for six weeks. The control group continued normal exercises. For assessment, McGill tests, tuck jumps, and hop tests were used. Data was analysed using a Repeated Analysis Variance Measure (p≤0.05).

The results of the repeated analysis of the variance measure showed a significant difference between the scores of trunk flexion (p = 0.001), trunk extension (p = 0.001), right side plank (p = 0.001), left side plank (p = 0.013), tuck jump score (p = 0.000), hop (p = 0.001), and in the experimental and control groups after six weeks of training.

The results of the present study showed that football-specific sports metric exercises improve core stability and lower limb function. Due to the relationship between core stability and lower extremity function and injuries, especially ACL rupture, to prevent injury and improve the performance of soccer players, it is recommended to use a football-specific injury prevention training protocol.

Background &

Lumbar segmental instability is one of the consequences of non-specific chronic low back pain, which is defined as excessive intervertebral transmission and rotational movements and causes functional disabilities. The aim of this study was to determine the effect of progressive stability exercises with and without breathing exercises on plantar pressure variables in patients with lumbar segmental instability.

The present study was a single-blind randomized clinical trial with a pre-test-post-test design. The population of the present study was male employees of Hamedan city suffering from back instability who were selected as available. . In order to select the research samples, the ability to stand on one leg for 30 seconds and back instability tests were used (three out of five tests were positive). Subjects were randomly selected in two experimental groups (combined core stability-respiratory exercises (CCSRE) and core stability exercises (CSE)) and a control group. The variables of plantar pressure distribution were investigated using a foot scan device. Data were analyzed by ANOVA with repeated measurement         (p≤ 0.05).

The results showed changes in the vertical ground reaction force in the CCSRE group (p=0.016), the center of pressure (anterior-posterior) in the CSE group (p=0.001) and the CCSRE group (p=0.001), the center of pressure (internal-external) in the CSE group (p=0.007) and the CCSRE group (p=0.033) and the travel distance in the CSE group (p=0.014), was significant from pre-test to post-test. Also, the inter-group results (interaction between group and time) showed a statistically significant difference in the variables of vertical ground reaction force, center of pressure (internal-external) and (anterior-posterior) and travel distance (p<0.05).

According to the results, it is recommended to use the combination of breathing exercises and core stability in the rehabilitation and treatment of patients with lumbar instability.

This study aimed to the relationship between specific cognitive components and balance and functional mobility in women with multiple sclerosis.

The research methodology was descriptive correlational method, and it was practical in terms of objective. 62 women with relapsing and flexible MS were selected using available sampling procedure of the study. To measure the cognitive components including TMT test was used to measure executive performance; auditory/verbal memory was measured using CVLT-II test and in order to assess motor functions including balance, walking speed, and functional mobility Berg Balance Scale, Timed Foot 25-Walk, and Up and Go tests were used, respectively. Falls Efficacy Scale International, to measure the fear of the risk of falling, was used.

Correlation coefficient results showed that there is a meaningful relationship between auditory/verbal memory with balance (r=0.669) , functional mobility (r=0.771), fear of falling risk (r=0.602) and walking speed (r=0.778) and between executive performance balance (r=0.795), functional mobility (r=0.820), fear of falling risk (r=0.791)  and walking speed (r=0.778), and with  the results from multiple regression analysis showed that a large percentage of changes in balance, functional mobility, and walking speed are predictable from cognitive components (P=0.001).

According to the results in present study, it seems that there is a significant relationship between cognitive components with balance, functional mobility, walking speed and fear of falling, and cognitive components can largely predict the motor function of patients with MS.

Fear of reinjury can have a devastating effect on an athlete's performance and can be a reason for an athlete to quit and compete. On the other hand, those who are more afraid of injury show greater landing error, so the aim of the present study was to investigate the effect of progressive muscle relaxation training in fear of re-injury and landing error of professional athletes with after Anterior Cruciate Ligament(ACL) reconstruction.

Twenty-six professional athletes (13 women and 13 men) with a history of ACL reconstruction (weight average 66.80±1.75 kg, age average 22.47±2.45 years, heigh average 167.84±7.18 cm) were selected as accessible and purposeful and were randomly divided into control (13 athletes) and experimental (13 athletes) groups. Subjects completed their rehabilitation after a sports injury. In the first step, athletes with history of ACL reconstruction completed the Tempa scale fear of injury (Tempa Scale Kensiophobia; TSK-11) questionnaire. In second step, the subjects' landing error was measured by the Landing Error Scoring System (Landing Scoring Error System; LESS). The experimental group performed progressive muscle relaxation exercises. In the experimental group, the progressive muscle relaxation training was performed in 12 sessions (3 days a week) for 4 weeks and each session was 30-45 minutes. The control group did not perform any special activity during this time. The experimental group performed progressive muscle relaxation exercises in 12 sessions for 4 weeks and each session for 30-45 minutes. The control group did not participate in any of the therapeutic activities during this period and were engaged in normal daily activities. After the training sessions, all subjects participated in the post-test and the indicators were measured. Data were analyzed using Repeated measures (p < 0.05).

The findings indicated that fear of reinjury and landing error decreased after intervention and also there was a significant difference between the groups in fear of re-injury (p=0.001) and landing error (p=0.001) are statistically significant.

According to the research findings, it can be concluded that the progressive muscle relaxation exercises used in the research are an effective and low-cost method to reduce the fear of re-injury and also reduce the amount of landing error. According to the present study and the research conducted in this field, it can be concluded that the reduction of landing error and fear of re-injury may be accompanied by improved movement and kinematic mechanics of the joint, which can prevent re-injury and Athletes with a history of ACL injury can also help prevent recurrence. Therefore, it is recommended that professional athletes use psychological exercises to reduce the risk of re-injury following ACL surgery and rehabilitation.

The aim of this study was to investigate the effect of dynamic neuromuscular stability (DNS) training on dynamic balance and functional disability in athletes with non-specific chronic low back pain.

The present study is quasi-experimental, applied with pre-test and post-test design. The sample consisted of 24 male team athletes with chronic non-specific low back pain in two equal and random control groups and experimental were divided into. The control group did not participate in any treatment and rehabilitation activities during this period and was engaged in normal daily activities. The experimental group performed dynamic neuromuscular stability training for 8 weeks. Also, before and after the intervention, the Oswestry questionnaire was used to evaluate the functional disability and the Y balance test was used to evaluate the dynamic balance. The data were analyzed using analysis of covariance (ANCOVA) at the significant level of p < 0.05.

The results of intergroup comparison after dynamic neuromuscular stability training showed a significant difference in improving dynamic balance and functional disability in the experimental group compared to the control group (P <0.05).

Based on the findings of this research, dynamic neuromuscular stability exercises improve functional disability and dynamic balance in athletes with non-specific chronic low back pain.

Adolescent idiopathic scoliosis is one of the complex and common deformities of the spine. It is a condition that can cause a lot of pain and discomfort for individuals and has consequences and complications. There are different exercises and approaches for correction of this deformity, such as Schroth exercise. In this regard, the purpose of this study was to investigate the effect of corrective exercises on Cobb angle, flexibility, functional capacity, and quality of life of adolescents with idiopathic scoliosis.

This controlled clinical trial with pre-test and post-test design was performed on 24 adolescents with idiopathic scoliosiswho were randomly divided into control and experimental groups. Cobb angle, flexibility, and functional capacity were measured by X-ray imaging, flexibility box, and six-minute walk test, respectively. The collected data were statistically analyzed in SPSS software (version 23) using a mixed-design analysis of variance with repeated measures. It must be noted that a p-value of 0.05 was considered statistically significant.

Based on the results, after 10 weeks of Schroth exercises, there was a significant difference in the exercise group regarding the reduction of Cobb angle as well as the increase of flexibility and functional capacity. However, no significant difference was observed in the control group from pre-test to post-test (P≤0.05).

According to the results, it can be concluded that the Schroth exercise program that involves the whole motor chain can effectively decrease the lateral curvature angle of patients with idiopathicscoliosis. Therefore, this type of exercise can be useful to use to treat people with Idiopathic scoliosisdeformity.