This Article  • Full text  • PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Contact me when this article is cited  Related Content  • Similar articles in this journal

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

I read with interest the article by Hebert et al¹ and congratulate the authors on their smart presentation. However, a few issues were not addressed in this article.

1. The "Steve Austin" ear that they designed does not have the same physical properties as an actual ear. The ear is a dynamic cavity with an active and ongoing process of gas exchange. The pressure from the outside and from the nasal cavity is an important factor. The mucosa of the ear is flexible in size and shape, following the law of Laplace, adjusting its size and the amount of mucosal secretion.
   
2. To use their method, we need to define what constitutes swimming. Most people go to the swimming pool and put their feet in the water and refer to it as swimming. In true swimming, even the shallow swimming that the authors refer to, there are a lot of pressure changes . . . [Full Text of this Article]