فهرست مطالب v.s. wangwad

The aim of study was investigate the effect of focus of attention instructions on muscle efficiency and motor performance of skilled Individuals. In this semi-experimental study with a pre-test-post-test research design, 30 skilled male golfers with an age range of 25 to 35 years were voluntarily selected and randomly divided into 3 groups of 10: external focus, internal and control group. In the pre-test, the participants performed 20 golf Putting trials; Also, EMG of deltoid, subscapular and Pronator teres muscles were also recorded. The intervention phase was carried out in 3 consecutive days, and on each day, the subjects performed 20 golf Putting, also, the EMG of the muscles was recorded simultaneously with the execution of the golf Putting. After the training sessions, the golf shot post-test was performed in 20 trials similar to the pre-test. Also, in the post-test phase, similar to the pre-test, the EMG of the deltoid, subscapular and Pronator teres muscles was also recorded. The data was analyzed by the Mix variance analysis method. The results of the behavioral section showed that there is a significant difference between the accuracy of the golf putting in the research groups; that these differences were in favor of the external focus group. Also, the results of this research in the neurophysiological section showed that among the research groups, the external focus group led to a significant decrease in the average activity of the muscles, which resulted in greater economy of movement and smoother movement.

The Purpose of the current study was to examine the effect of a progressive relaxation training period on muscle efficiency and performance of archery athletes. ‎

In this semi-experimental study, which was conducted with a pre-test-post-test design with a control group, 40 male archery athletes were randomly selected and placed in two groups of relaxation and control exercises. In the pre-test stage, the participants made 9 archery throws, during which the electrical activity was recorded using an electromyography device. According to the method proposed in the methodology of the research, the training phase of progressive relaxation was done in six weeks and three sessions each week and each session lasted 30 minutes. After the training phase, the post-test phase was conducted, where the participants performed 9 archery throws, as in the pre-test phase, during which the electrical activity was recorded using an electromyography device. The data was analyzed by univariate covariance analysis.‎

The results indicated that progressive relaxation intervention on performance (P<0.05), the electrical activity of biceps muscle (P<0.05) and triceps muscle electrical activity (P<0.05) has a significant effect.‎

In general, the results of the present study emphasize the importance of a progressive relaxation program on muscle efficiency and archery performance.