通常在测验头上前抛实心球《达标》项目时,由于落地点痕迹不清,影响了测验成绩的准确性。下面介绍一种准确、快速的沙坑测验法。 一、场地布置 在跳远沙坑后面划一条与沙坑后沿平行的起掷线。起掷线与沙坑的距离以《达标》评分表中的最低分值确立,然后用标枪分别将两根皮尺顶端(铁环)固定在起掷线与沙坑左右边沿延长线的交叉点上,再将两根皮尺向投掷方向平行拉直后分别缠固在立于沙坑前面的两支标枪上。 二、丈量方法 Usually, when throwing a solid ball on the test head to reach the target, the accuracy of the test score is affected due to the unclear location traces. The following describes an accurate and quick sand pit test method. First, the venue layout In the long jump behind the bunker and draw a parallel to the rear edge of the bunker. The distance between the throwing line and the bunker shall be established with the lowest score in the “Standards” scale. Then the top of the two tapes (hoop rings) shall be fixed with a javelin at the intersection of the throwing line and the extension line of the left and right edges of the bunker. Then, the two tape measures were paralleled and straightened in the direction of throwing, and they were respectively wrapped around the two javelins standing in front of the bunker. Second, the measurement method