Nishi Eri, Nagamatsu Yuiko, Niikawa Takuya
Annu Int Conf IEEE Eng Med Biol Soc. 2016 Aug;2016:2042-2045. doi: 10.1109/EMBC.2016.7591128.
In order to clarify the dynamic mechanisms involved in sucking by infants, we developed an artificial nipple with built-in force sensors and have measured the contact force between the tongue and the artificial nipple in infants including healthy, premature and low birth weight. In this study, we measured the force applied by the tongue on the artificial nipple in 10 healthy infants and in 10 infants who were also tube-fed and investigated the differences in dynamic actions between the two groups to extract factors involved in satisfactory sucking. The results showed that differences in the maximum force applied and in the time to reach the maximum force were found between infants with and without established oral feeding. For an infant to suck satisfactorily, 1) the time for the force to propagate from the tongue tip to the tongue root needs to constitute at least 8 % of the sucking period and 2) the force applied at the tongue tip needs to be at least 50% of the force at the tongue root.
为了阐明婴儿吸吮所涉及的动态机制，我们开发了一种内置力传感器的人工乳头，并测量了包括健康、早产和低体重婴儿在内的婴儿舌头与人工乳头之间的接触力。在本研究中，我们测量了10名健康婴儿和10名接受管饲喂养婴儿的舌头施加在人工乳头上的力，并研究了两组之间动态行为的差异，以提取与满意吸吮相关的因素。结果表明，已建立经口喂养的婴儿与未建立经口喂养的婴儿在施加的最大力和达到最大力的时间上存在差异。对于婴儿要实现满意的吸吮，1）力从舌尖传播到舌根的时间需要至少占吸吮周期的8%，2）舌尖施加的力需要至少是舌根处力的50%。
