engleski

Effects of variations of the pullover exercise on the EMG activity of eight muscles

The acting of pulling the arms from an overhead position toward or raising body with arms when hands are secured in one place is important in javelin throwing, gymnastics, swimming, overhead throwing actions in sport games, wrestling and in all pulling-up actions such as free climbing and rope climbing. The pullover may be the most widely applied exercise used for above mentioned actions of arms and developing the different muscles of the upper body. This experiment investigates the effects of varying pullover hand spacing and tape of the bar (barbell or dumbbell) on the EMG activity of eight muscles acting at the shoulder and elbow joint. One male weight trainer performed pullover under two conditions of hand spacing (joined hands and 100% of the biacromial diameter) at 62, 5% of his predetermined maximum. Preamplified surface EMG electrodes were placed over the eight muscles in question. The triceps brachii and latissimus dorsi activity tended to increase during the pullover with barbell with 100% of biacromial hand grip.

Pullover exercise ; EMG ; eight muscles

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