MUSCLE ACTIVITY OF THE TRUNK AND UPPER LIMBS IN RACE WALKING

Abstract

Race walking requires high technical mastery of competitors based on biomechanical laws. These, in turn, are the basis of high sports results and effective techniques. Research in this direction mainly focuses on the work of the lower extremities. From this point of view, this study aims to determine the muscle activity of selected muscles on the upper body during race walking. The method of study is surface electromyography of the following muscles: m. Erector spinae longissimus; m. Rectus abdominis; m. Obliquus externus abdominis; m. Musculus trapezius (middle part); m. Pectoralis major; m. Lattissimus dorsi; m. Deltoideus anterior & m. Deltoideus posterior) front and back heads. Results: The most significant activation for the persons studied to exhibit m. Trapezius transversalis (65,49%) m. Latissimus dorsi (49,41%) and m. Deltoideus posterior (47,91%). Conclusions: the competitors' different technical skills differentiate some muscle activities, which will inevitably lead to different biomechanical expediency of the movements; The main direction in work should be to the muscles along the back of the trunk: Trapezius Transversalis, M. Latissimus dorsi, and m. Deltoideus posterior.

Keywords

• biomechanics
• technique
• muscle work