First, it forces you to hunch over, an inefficient running form that can lead to neck, shoulder, and back pain.

第一，这迫使你弓着腰，一个没有效率的跑步方式能导致脖子，肩膀，和背部疼痛。

youdao

People tend to "slouch" or "hunch" over in their seats which puts a lot of strain on their back.

人们倾向于在座位上“懒坐”或“弓坐”，这样给后背造成了很大压力。

youdao

Your body should be straight up in the water; don't lean forward much or hunch over. Keep your shoulders back and look straight ahead.

你的身体在水中应该保持正直，挺胸、目视前方，不要过度前倾或伛偻。

youdao