推荐回答(5个)
参加运动会,必须是市级以上不包括市级。成绩过12.5米,铅球重量是7.26kg的。
落地区用煤渣或草地以及其他适宜材料铺设落地区,铅球落地时应能留下痕迹。用宽5厘米的两条白色角度线标明,线宽不包括在落地区有效面积内,角度线的内沿延长线通过投掷圈圆心,夹角为34.92°。
落地区地面沿投掷方向的向下倾斜度不得超过1:1000。在两角度线的外侧每隔1米放置距离标志牌。铅球落地扇形角度应该为34.92°。可用醒目的旗帜或标志物标出每名运动员的最好成绩,放置标志物时,应沿落地区角度线方向放置在角度线外侧。

场地设施:
铅球场地是田赛场地设施之一。由投掷圈、限制线、抵趾板和落区组成。
投掷圈应用铁、钢板或其他适宜材料制成,其上沿应与圈外地面平。圈内地面应用混凝土、沥青或其他坚硬而不滑的材料修建。圈内面应保持水平,低于铁圈上沿14-26毫米。也可使用符合上述规定活动投掷圈。投掷圈内沿直径应为2.135米(±5毫米)。铁圈边沿至少应厚6毫米,漆成白色。
以上内容参考:百度百科-铅球
难。铅球是田径运动的投掷项目之一。铅球国际运动健将要求18.25米,运动健将要求17.10米,一级运动员要求15.30米,二级运动员要求12.50米,三级运动员要求10.00米,少年级要求8.50米。
推铅球小技巧:握球手的手指自然分开,把球放在食指、中指和无名指的指根上,大拇指和小指支撑在球的两侧。掌心不触球。握好球后,身体左侧对投掷方向,两脚左右开立比肩稍宽,右膝弯曲,上体向右倾斜扭转,重心落在右腿上,左臂微屈于胸前。

铅球注意事项
原地推铅球站位姿势很重要,站位姿势不合理,不但不能取得好成绩,反而易产生错误的技术动作。此类错误动作主要表现在学生两脚位置不正确,左肩直接正对投掷方向,造成投掷铅球时不能形成良好的操作器械,对于铅球的作用效果差,因而成绩不理想。
蹬转要迅速有力,膝盖内扣,充分体现蹬转送髋、留上体和挺胸动作,充分体会投掷铅球最后用力时蹬转送髋留上体和挺胸抬头的动作,逐渐形成正确的用力顺序。进一步体会原地推铅球蹬转送髋和挺胸抬头的动作,加强左侧腿的支撑效果,防止臀部后坐和上体前倾含胸的错误动作。
国际级 健将 一级 二级
男:铅球(7.26公斤) 20.10米 17米 16米 12.50米
女:铅球(4公斤) 18.20米 17米 15.20米 12.50米
男(7.26kg):
二级:12.50m
一级:16.05m
女(4kg):
二级:12.50m
一级:15.30m
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