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Abstract
There are different types of grip that can be used in horizontal row on a low pulley machine. The aim of this study was to carry out an electromyographic analysis of the muscle activation of latissimus dorsi muscle, biceps brachii, posterior deltoid and transverse part of trapezius, for different bilateral grips and widths. The sample consisted of 12 healthy male participants. The level of muscle activation, expressed as a percentage of a maximum voluntary contraction, was measured. The results showed that a significant difference (ρ≤0.05) was obtained in the biceps brachii, with the narrow neutral grip activating it the most. On the other hand, the posterior deltoid was more activated with the wider grips, with the wide neutral grip activating it the most. There were significant differences in the trapezius, which was activated the most with the medium width neutral grip. In the case of the latissimus dorsi muscle, although not significantly, it was the wide supine grip. We concluded that, although no differences were found in the latissimus dorsi muscle, the trapezius seems to be the muscle that is most activated with this exercise, with the narrow neutral grip showing the highest activation in the biceps brachii.






