Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College, Tokyo, Japan.
Gerodontology. 2021 Dec;38(4):422-428. doi: 10.1111/ger.12540. Epub 2021 Feb 3.
To determine the effects of the training duration and frequency on lip-seal strength (LSS) in older people.
Lip-seal is important for speaking, eating and swallowing. LSS decreases after training ends; therefore, continuous training is essential.
Participants underwent the resistance training of LSS. Regarding training duration, eight women aged ≥65 years participated in a crossover study with trainings A (direction: 1, duration: 50 seconds) and B (directions: 3, duration: 3 minutes), daily for 4 weeks. Regarding training frequency, 40 women aged ≥65 years were divided into four groups based on frequency (everyday, every-other-day, once-a-week and control groups), and all groups excluding the control group performed training B for 4 weeks. LSS was measured at weeks 0, 2 and 4 using a digital strain gauge. Friedman's test was used, followed by Steel-Dwass test (α = 0.05).
Regarding the effects of the training duration, significant differences in LSS were noted between weeks 0 and 4 for training B, but no difference was noted for training A. Regarding training frequency, significant differences were observed between weeks 0 and 2 or 4 in the everyday and once-a-week groups. Significant differences were observed in the every-other-day group between weeks 0 and 4 and no difference in the control group. For all groups, median LSS was higher in week 2 or 4 than that in week 0.
Lip-seal training for 3 minutes per session everyday, every-other-day or once-a-week for 4 weeks increased LSS of older people.
确定训练持续时间和频率对老年人唇部密封性（LSS）的影响。
唇部密封性对于说话、进食和吞咽都很重要。训练结束后 LSS 会下降，因此需要持续训练。
参与者接受唇部密封性的阻力训练。关于训练持续时间，8 名年龄≥65 岁的女性参与了一项交叉研究，分别接受 A 训练（方向：1，持续时间：50 秒）和 B 训练（方向：3，持续时间：3 分钟），每天一次，持续 4 周。关于训练频率，40 名年龄≥65 岁的女性根据频率分为 4 组（每天、隔天、每周一次和对照组），除对照组外，所有组均进行 4 周的 B 训练。使用数字应变计在 0、2 和 4 周测量 LSS。采用 Friedman 检验，然后采用 Steel-Dwass 检验（α=0.05）。
关于训练持续时间的影响，B 训练在第 0 周和第 4 周之间的 LSS 差异显著，但 A 训练没有差异。关于训练频率，每天和每周一次组在第 0 周和第 2 周或第 4 周之间 LSS 差异显著。每隔一天组在第 0 周和第 4 周之间差异显著，对照组没有差异。对于所有组，第 2 周或第 4 周的 LSS 中位数均高于第 0 周。
每天、隔天或每周一次，每次 3 分钟，持续 4 周的唇部密封性训练可以增加老年人的 LSS。
