> For the complete documentation index, see [llms.txt](https://strydtaiwan.gitbook.io/stryd/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://strydtaiwan.gitbook.io/stryd/master/stryd-metrics/vo.md).

# 垂直振幅 (Vertical Oscillation, VO)

####

**什麼是垂直振幅？**\
垂直振幅指的是跑步時身體質心（通常在骨盆或臀部）的上下移動幅度，通常範圍為 **3-15 公分**。<br>

**垂直振幅為何重要？**\
理想的垂直振幅因人而異，建議用於趨勢監測，而非追求特定數值（如 4.0 公分）。

影響因素：

* 跑者隨著訓練進展，可能會觀察到垂直振幅的變化
* 上坡或下坡跑步時，垂直振幅可能與平地不同


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