FIELD: sports equipment.
SUBSTANCE: invention relates to sports equipment and is mainly aimed at developing the muscles of the shoulder girdle, including the muscles of the arms. The expander contains two handles with elastic elements, and it is equipped with a guide, additional handles and additional elastic elements, the main and additional elastic elements are made in the form of helical cylindrical springs, and holes with threads are made in the main and additional handles corresponding to the coils of the helical cylindrical springs, moreover handles and springs are sequentially installed on the guide with the possibility of partial or complete installation of springs in the handles.
EFFECT: providing an operational change in the load and a change in the trajectory of the exercise being performed.
1 cl, 5 dwg
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