Toronto Rehabilitation Institute, Toronto, ON M5G 2A2, Canada.
J Speech Lang Hear Res. 2010 Apr;53(2):273-83. doi: 10.1044/1092-4388(2009/09-0076). Epub 2009 Dec 14.
Evidence of tongue-palate pressure modulation during swallowing between thin and nectar-thick liquids stimuli has been equivocal. This mirrors a lack of clear evidence in the literature of tongue and hyoid movement modulation between nectar-thick and thin liquid swallows. In the current investigation, the authors sought to confirm whether tongue-palate pressures are modulated between discrete swallows of water and nectar-thick juice.
Tongue-palate pressures were measured at 3 sites (anterior, medial, and posterior palate) using an adhered 3-bulb pressure strip in 20 healthy, young adults during discrete swallows of water and nectar-thick apple juice.
Pressure modulation was not noted with respect to pressure amplitudes (in mm Hg), but was identified both in the pressure patterns observed (the sites and number of bulbs activated) and temporal aspects of pressure duration.
Tongue-palate pressure amplitude modulation does not occur for nectar-thick swallows compared to thin liquid swallows. Modulation does, however, occur with respect to the tongue-palate contact surface area and pressure durations. The authors introduce the concept of pressure slope as a meaningful way to examine tongue-palate pressure application in swallowing.
在稀薄和花蜜般浓稠液体刺激之间吞咽时，舌-腭压力调节的证据一直存在争议。这反映了文献中缺乏关于花蜜般浓稠和稀薄液体吞咽之间舌和舌骨运动调节的明确证据。在目前的研究中，作者试图证实水和花蜜般浓稠果汁的离散吞咽之间是否调节了舌-腭压力。
在 20 名健康的年轻成年人中，使用附着的 3 球压力条在 3 个部位（前腭、中腭和后腭）测量舌-腭压力，分别在离散吞咽水和花蜜般浓稠的苹果汁时进行测量。
压力幅度（毫米汞柱）没有观察到压力调节，但在观察到的压力模式（激活的部位和球数）以及压力持续时间的时间方面都确定了压力调节。
与稀薄液体吞咽相比，花蜜般浓稠的吞咽不会发生舌-腭压力幅度调节。然而，舌-腭接触面积和压力持续时间会发生调节。作者提出压力斜率的概念，作为一种有意义的方法来检查吞咽时舌-腭压力的应用。
