چكيده لاتين
Core stability exercises target on core muscles and they have three functional roles including: 1- contributing to breathing by appropriately regulating internal pressures in the abdominal cavity, 2- collaborating in the regulation of body posture through striking a balance between their flexors and extensors and creating appropriate pressure within the abdominal cavity, 3-Controling the postural-movement dynamics of limbs. In addition, because of the injury prevention and the improvement of swimmers’ performance, core stability trainings lead to enhance the safety, efficiency and effectiveness of bodily movement. This research aims to compare the effects of traditional core stability training and respiratory training on shoulder range of motion, exhaustion, shoulder pain, and swimming performance in elite young male swimmers. This study analyzes the effects of four-weeks of common traditional core stability training on land and respiratory-based core stability training on two groups of elite swimmers suffered from shoulder pain and the limited shoulder mobility. Given the nature of the subject and the objectives pursued in this research, the present study is a true experimental design of the classical type, as it involves two experimental groups (two different interventions) and paired random grouping. Additionally, this research is practical, based on the use of the obtained results, and the data collection is conducted in the field rather than in a laboratory setting. this study includes a pre-test and post-test. The independent variable consists of two types of core stability training protocols: traditional core stability training and DNS-based core stability training tailored for swimmers. The dependent variables include shoulder pain, range of motion in the shoulder, and performance of elite young male swimmers. To examine the research hypotheses, repeated measures ANOVA was used. It should be noted that after final data refinement, the research participants included 24 individuals (12 in the core stability training group and 12 in the core stability training group with diaphragmatic breathing). The results showed that four weeks of core stability training had a significant effect on shoulder flexion score (F=20.90 and P<0.001), internal shoulder rotation (F=60.86 and P<0.001), and horizontal hyper abduction of the shoulder (F=58.46 and P<0.001), indicating a significant difference between the progress of the respiratory core stability group and the traditional group. In the cases of 50 meters freestyle (F=0.68 and P=0.418), swimmersʹ pain (F=0.87 and P=0.503), and exhaustion (F=3.36 and P=0.081), there was a significant temporal effect, but no significant difference was found between the progress of the respiratory and traditional groups. The results of this study indicate that core stability exercises performed on swimmers have an impact on shoulder range of motion, pain, exhaustion, and swimming performance. Therefore, these exercises can be utilized for swimmers. Increased range of motion is likely to enhance swimmersʹ performance and enable them to train with greater quality and focus. Given that these exercises have no negative effects and are easy to perform, they are recommended to swimming coaches as a complement to training.
