orthostatic

例句：

1. 1.The patient was placed in an orthopedic brace to stabilize his fractured leg.
   病人被安置在矫形支架上，以稳定他骨折的腿。
2. 2.The doctor advised the patient to remain upright during the recovery process.
   医生建议病人在康复过程中保持直立。
3. 3. After standing for hours, she felt her legs become weak and decided to sit down.
   站了几个小时之后，她感到双腿无力，决定坐下。