| 摘要 |
The invention relates to a device for indicating movements in a body. More specifically, the invention relates to a body comprising a fixed deformation-resistant shaft (1) and a mobile deformation-resistant shaft (2) which are linked by means of a ball-and-socket joint (3) and which are surrounded by material (4) that is subject to stretching, in which one end of each shaft is free (5 and 6). According to the invention, edges (ABCD, EFGH) are defined by the points at which the body intersects with the plane of the shafts (1, 2) such as to limit same in a direction that is essentially orthogonal to said shafts (1, 2). The bending of the body, corresponding to an angle between the fixed (1) and mobile (2) shafts, is indicated by the difference between the elongation movements experienced by the edges (ABCD, EFGH), while the twisting of the body around the mobile shaft (2) is indicated by the sum of the elongation movements experienced by the edges (ABCD, EFGH). The invention is suitable for use in the field of sports. |
