A kind of supporting element includes an at least pedestal, one first supporting pad and one second supporting pad. Pedestal has a upper surface and corresponding a lower surface. The upper surface of what pedestal is arranged in first supporting pad, fits a radius of the forearm of what skewed horizontal load user. The upper surface of what pedestal is arranged in second supporting pad, fits a ulna of the forearm of what skewed horizontal load user. An elongated accommodation groove is collectively formed in pedestal, the first supporting pad and the second supporting pad. Elongated accommodation groove fits the forearm of what accommodating part. 一種支撐件，包含至少一基座、一第一支撐墊及一第二支撐墊。基座具有一上表面及相對應的一下表面。第一支撐墊設置於基座之上表面，適於斜向支撐使用者的一前臂的一橈骨。第二支撐墊設置於基座之上表面，適於斜向支撐使用者的前臂的一尺骨。基座、第一支撐墊與第二支撐墊共同形成一長形容置槽。長形容置槽適於容置部分的前臂。
