مقالات رزومه مینا حقیقی

Fatigue leads to an increase in joint restoration errors because of nervous system fatigue and a lack of understanding of joint position and imbalance that may be due to the changes in walking patterns and excessive pressure on bones and soft tissue structures, which may ultimately lead to injuries in climbers. Accordingly, this study investigates the effect of fatigue on the restoration error of the knee and ankle joint angles.

This was a quasi-experimental study. A total of 35 mountaineers aged 20-35 years were selected by the non-random sampling method. This research was conducted on September 10, 2022, at the Tochal Climbing Rout in Velenjak, Tehran City, Iran. The tests were taken before and after a mountaineering program for a distance of 8 km at an average speed. The position sense of knee and ankle joints was evaluated using the Mobimed, which is a type of electrogoniometer. The normal distribution of the data was statistically analyzed using the Shapiro-Wilk test, and the data were analyzed using the paired t-test. The SPSS software, version 24, was used for all statistical operations (P≤0.05).

The findings showed that fatigue causes errors and significant changes in the restoration of knee and ankle joint angles and 30° (P=0.003), 45° (P=0.004), 60° (P=0.007), dorsiflexion of 10° (P=0.009) and plantar flexion of 20° (P=0.001), the restoration and sense of position is disturbed, which shows that fatigue is effective in understanding the state of the joints.

Fatigue increases the error of restoration of the knee and ankle joint angles, which can reduce the optimal performance of the muscles around the joints by reducing the person’s understanding of the angles and the sense of the joint position.

Balance is a critical physical factor for achieving independence, and children with spastic cerebral palsy often experience motor and balance difficulties. The aim of this study was to investigate the effects of game therapy on the balance of children with cerebral palsy, with a focus on basic abilities. This study utilized a quasi-experimental design with a pretest-posttest controlled approach. Twenty children aged 4-10 years, diagnosed with spastic diplegic cerebral palsy with levels 1 and 2 according to SCFMG standards, with a minimum IQ of 80 (to be able to perform the required tasks), and possessing the basic ability to stand and maintain posture balance, as well as communicate and understand linguistic concepts, were randomly selected from rehabilitation clinics in Tehran. Subjects were randomly divided into the control and game therapy groups. The pediatric balance scale (PBS) test was used to evaluate the balance level using a WII device with a wireless controller and a motion controller. The exercise program consisted of nine different games targeting various areas with the common goal of improving the child's balance. After 20 game therapy sessions, (four 20-minute sessions per week,) tests were repeated in the post-test. The data were analyzed with tow way ANOVA Test and paired T-test by SPSS, 20. The results of the paired t-test indicate a significant improvement in static balance in the post-test for the game therapy group when compared to the pre-test (P<0.0001). Moreover, the dynamic balance of the experimental group showed a significant improvement in the post-test when compared to the pre-test (P=0.042). The study findings indicate that game therapy is a viable method for enhancing both static and dynamic balance in children with cerebral palsy. Given that the games used in the therapy are intended to be played at home with parental supervision, it is advised that these games be utilized to improve the balance of children with cerebral palsy.

Low back pain (LBP) can cause changes in muscle activity in affected individuals, making it difficult for them to contract their muscles effectively and engage in physical activities. Manual chiropractic techniques have been proposed as a potential solution to improve muscle orientation and function in individuals with LBP. The purpose of this study was to investigate the effect of manual techniques on maximum muscle activity electromyography, functional disability, and pain in women with non-specific chronic low back pain. Twenty women between the ages of 30 and 50, who had been experiencing NSCLBP for over three months with no history of spinal surgery or postural abnormalities, and were able to perform daily activities after providing consent, were recruited from a sports medicine clinic to participate in the study. In the pre-test, the Oswestry Disability Index (ODI) was used to assess functional disability, and the Visual Analogue Scale (VAS) was used to assess pain levels. Additionally, the maximum muscle activity of the multifidus and lumbar quadratus lumborum (QL) was measured using EMG. Chiropractic manipulation techniques were then implemented in the experimental group, with three sessions per week for six weeks, within the clinic. The same tests were repeated in the post-test. The ANOVA test was used to compare the chiropractic and control groups, with a significance level of α ≤ 0.05. The study results indicate that chiropractic manual techniques were effective in reducing lumbar EMG activity (P= 0.0001), reducing pain index (P= 0.002), and improving functional disability (P= 0.001) significantly. The study findings suggest that six weeks of chiropractic manipulation techniques can induce a feeling of relaxation, reduce pain, and passively strengthen the lumbar muscles. These improvements in muscle condition and functional disability may lead to a reduction in pain experienced by individuals with NSCLBP.

Low back pain is a common debilitating condition and a major clinical and socio-economic problem in the most industrialized and non-industrialized countries.

The aim of this study was to compare the effect of motor control exercises and PNF exercises on postural control, strength, endurance and proprioception in women with chronic non-specific low back pain.

Forty-five women with non-specific chronic low back pain selected by convenience sampling and randomly divided into three groups of 15 (motor control exercises, PNF exercises, and control group). The pre-test included posture control, flexor and extensor muscle strength of the trunk, trunk muscle endurance, and proprioception using Y balance, dynamometer, McGill, and Goniometer tests, respectively. The subjects of the experimental groups performed the training program for 8 weeks under the supervision of the instructor and according to the training protocol. Then, the post-test was performed. Paired t-test and analysis of covariance at the significance level of 0.05 were used to collect data.

The results showed that motor control and PNF exercises improved proprioception, postural control, endurance, and strength of trunk flexor and extensor muscles in women with non-specific chronic low back pain (α≤0.05). The results also showed that there was no significant difference between the effects of motor control and PNF exercises on proprioception, postural control, flexor muscle endurance, and extensor muscle strength (α≥0.05).

Motor control and PNF exercises are effective in improving the proprioception, postural control, endurance, and strength of flexor and extensor muscles of the trunk with non-specific chronic low back pain, and both training methods are effective in treating chronic non-specific low back pain.