Wheeler Hegland Karen M, Huber Jessica E, Pitts Teresa, Sapienza Christine M
Arizona State University, Tempe, AZ, USA.
J Speech Lang Hear Res. 2009 Feb;52(1):178-87. doi: 10.1044/1092-4388(2008/07-0165). Epub 2008 Aug 22.
This study examined the relationship between swallowing and lung volume initiation in healthy adults during single swallows of boluses differing in volume and consistency. Differences in lung volume according to respiratory phase surrounding the swallow were also assessed.
Nine men and 11 women between the ages of 19 and 28 years served as study participants. Lung volume and respiratory phase data were recorded as each participant completed 5 trials each of 10-mL and 20-mL water boluses by cup, and thin and thick paste boluses by spoon, presented in randomized order.
Significant differences in lung volume at swallow initiation were found based on bolus consistency but not on bolus volume. No differences were found for lung volume initiation based on the respiratory phase surrounding the swallow or for the respiratory pattern based on bolus volume or consistency.
Findings of this study extend the existing knowledge base regarding the interaction of the swallow and respiratory systems by identifying targeted lung volumes at swallow initiation. In addition to other swallow-related biomechanical events and respiratory phase relationships surrounding a swallow, the lung volume at swallow initiation may be an important consideration when investigating swallow physiology and physiopathy.
本研究探讨了健康成年人在单次吞咽不同体积和黏稠度的食团时吞咽与肺容积起始之间的关系。还评估了根据吞咽周围呼吸阶段划分的肺容积差异。
19至28岁的9名男性和11名女性作为研究参与者。在每位参与者通过杯子完成10毫升和20毫升水食团各5次试验，以及通过勺子完成稀糊和稠糊食团各5次试验时，记录肺容积和呼吸阶段数据，试验以随机顺序进行。
发现吞咽起始时的肺容积根据食团黏稠度存在显著差异，但根据食团体积不存在显著差异。基于吞咽周围的呼吸阶段的肺容积起始或基于食团体积或黏稠度的呼吸模式均未发现差异。
本研究结果通过确定吞咽起始时的目标肺容积，扩展了关于吞咽与呼吸系统相互作用的现有知识库。除了其他与吞咽相关的生物力学事件以及吞咽周围的呼吸阶段关系外，吞咽起始时的肺容积在研究吞咽生理学和病理生理学时可能是一个重要的考虑因素。
