Another simple way to test whether your S-I joint is causing your pain is to observe your symptoms as you slowly stand and sit.

另一个判断方法是通过缓慢的站立和坐下观察疼痛的变化。

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Twenty two volunteers with healthy backs were scanned using a positional MRI machine, which allows patients the freedom to move - so they can sit or stand - during the test.

医院用定位核磁共振仪对22名拥有健康脊背的志愿者进行扫描。在扫描过程中，志愿者可以任意移动，坐着或是站着均可。

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