雪杖在传统技术和自由技术比赛中分别有什么长度规则限制

传统技术的雪杖有一条比赛规则是，雪杖最长不能超过身高的83%。

如果是传统技术越野滑轮比赛，则是雪杖最长不能超过身高的83% + 2厘米。

这是FIS在2016年引入的新规则。有关相关报道，可以见如下新闻：

https://fasterskier.com/2016/10/fis-rules-for-shorter-classic-poles-to-defend-classic-technique/

自由技术的雪杖有一条比赛规则是，雪杖最长不能超过身高的100%。

身高包含穿了雪鞋的身高；雪杖测量最高点为握革和雪杖的连接点。最终结果使用四舍五入计。

详细见FIS比赛规则（International Competition Rules (ICR) Cross-Country Dec. 2021）中的以下条则：

343.8.1 In classical technique competitions, the maximum pole length must not exceed 83% of the competitor’s body height. In free technique competitions, the
maximum pole length must not exceed 100% of the competitor’s height. The body height is measured with ski boots on from a flat surface, to the top of the
uncovered head.

The pole length is measured from the bottom of the pole to the highest attachment of the strap.

All measurements will be rounded to the nearest centimeter as follows: less than 0.5 cm will be rounded down and 0.5 cm and above will be rounded up.

343.12.1 In all competitions pole exchange is only allowed in the case that a pole is broken or damaged. In classical technique competitions, if both poles are exchanged, they must comply with ICR 343.8.1.

It is however permitted to exchange poles in equipment exchange boxes during ski exchange in skiathlon competitions.

396.10.1 In classical technique competitions, the maximum pole length must not exceed 83% of the competitor’s body height plus 2 cm. The measurements and rounding must correspond to the provisions of ICR art 343.8.2.