foad seydi

The purpose of the present research was to compare the effect and follow up of eight-week corrective exercises with and without the myofascial release forward head and forward shoulder deformity in young adults.

A total of 45 male students suffering from abnormal forward head more than 46° and forward shoulder more than 52° deformity with the Mean±SD age of 22.12±2.88 years, height of 175.44±6.80 cm, and weight of 71.21±7.31 kg were selected and randomly distributed in three groups: corrective exercises, combinational exercises (corrective and myofascial release), and control. These groups performed the exercises for eight weeks under the direct observation of the researcher. Prior to starting the exercises, after the end of eighth week, and four weeks after the end of the exercises, the angles of the forward head and forward shoulder of the participants were measured using a photography method. Then, the collected data was analyzed using the variance analysis tests with repeated measurements and ANCOVA.

The results showed that the degree of forward head and forward shoulder after eight weeks of exercises in both training groups in post-test and follow-up test was significantly lower than those of the pretest. The ANCOVA test results also demonstrated that the forward shoulder degree in corrective exercises group with myofascial release in post-test and follow-up test was significantly lower than that of the corrective exercises (P≤0.05). However, the forward head degree did not show a significant difference between the intervention groups in post-test and follow-up tests (P≥0.05).

According to the results, it can be stated that the corrective exercises program with myofascial release is more effective than the corrective exercises in correcting the forward shoulder deformity.

The effect and persistence of neuromuscular activities on the timing of lower extremity proximal muscles are questionable. So the purpose of this study was to investigate the persistence effect of neuromuscular exercise on activity timing of lower extremity distal and proximal muscles in athletes with functional ankle instability.

26 athletes with functional ankle instability were randomly divided into two groups of neuromuscular exercises and control. Subjects were selected based on inclusion and exclusion criteria. In the pretest phase, the activity timing of muscles was evaluated with surface electromyography. The next step was to exercise group performing their own exercises for 6 weeks. Exercises were performed 3 sessions per week and each exercise session lasted 15 to 20 minutes. Then all pre-test measurements were performed in the post-test and persistence test. Repeated analysis using ANOVA and Bonferroni post hoc tests were used for statistical analysis. The significance level was considered less than 0.05.

Results of Mixed-ANOVA showed the interactive effect of time(pretest-posttest-persistence) on the group(neuromuscular-control) significantly changes the activity timing of distal muscles in the neuromuscular group(P≤0/05). But there was no difference in the activity timing of proximal muscles in either of two groups in post-test and persistence compared to pre-test(P≥0/05).

Although neuromuscular exercises improves the activity timing of distal muscles and persistence, this improvement does not apply to proximal muscles that play an important role in the lower extremity chain. Therefore, it is suggested that in the rehabilitation of functional ankle instability, use exercises that, in addition to affecting the distal segments, also focus on the proximal muscles to reduce the risk of re-injury.

Although the internal and external risk factors of anterior cruciate ligament (ACL) injury have extensively been studied, biomechanical and neuromuscular risk factors that put women at risk for this injury are unclear. Since muscle weakness is a contributing factor in ACL injury, the current research was conducted to study how weakness or strength of muscle, especially core muscles, can affect lower limbs performance and injury. Fatigue is also a negative contributing factor to the performance of core muscles. In this regard, the present study aimed at evaluating the effect of core muscles fatigue on some kinematic parameters associated with ACL injury during single-leg stop-jump maneuver in female athletes.

A total of 30 female athletes were selected and divided into two groups of control and experimental. We used a protocol for recorded fatigue to exhaust the core muscles and the Vicon Motion Analysis device to analyze kinematic parameters.

The flexion angle and knee valgus at the moment of initial contact of the foot with the ground and the maximum amount of flexion and knee valgus during single-leg stop-jump maneuver were measured. A significant difference was observed between flexion angle of the knee at the moment of initial contact of the foot with the ground before (6.82) and after (2.36) intervention and knee valgus before (3.10) and after (5.80) intervention in the experimental group (p

It is concluded from the results of the present study that core muscles fatigue can influence the flexion angle and knee valgus and the maximum amount of flexion and knee valgus.