Abstract：
BACKGROUND: Studies have demonstrated that high-speed jaw-opening exercises are effective in improving swallowing function. However, there has been no objective tool available for monitoring jaw-opening pace. This study aimed to develop an objective tool for monitoring and validating jaw-opening pace and compare it between young and old ages from different age groups.
METHODS: A load cell plug-in jaw pad connected to an automatic recording and analysis system was used to record jaw-opening motions for offline analysis. We recruited 58 healthy volunteers from different age groups (20-39 y/o; 40-59y/o; 60-79y/o). During a 2-min recording session, each participant was instructed to fully open and close their jaw as quickly as possible while wearing a sensor. Bland-Altman plot, paired t-test and Pearson\'s correlation test were used to compare the number of jaw-opening motions between manual counting and automatic software analysis. The number of jaw-opening motions during the 2-min recording was compared between the three age groups.
RESULTS: Automated analysis of jaw-opening pace was efficient and equally comparable with the traditional manual counting method across the three age groups. A declining trend in jaw-opening pace among the old age group was found but with no statistically significant difference.
CONCLUSIONS: A jaw-opening motion monitoring tool with reliable automatic pace analysis software was validated in young and old ages The jaw-opening pace demonstrated a tendency to decline with age.
METHODS: A load cell plug-in jaw pad connected to an automatic recording and analysis system was used to record jaw-opening motions for offline analysis. We recruited 58 healthy volunteers from different age groups (20-39 y/o; 40-59y/o; 60-79y/o). During a 2-min recording session, each participant was instructed to fully open and close their jaw as quickly as possible while wearing a sensor. Bland-Altman plot, paired t-test and Pearson\'s correlation test were used to compare the number of jaw-opening motions between manual counting and automatic software analysis. The number of jaw-opening motions during the 2-min recording was compared between the three age groups.
RESULTS: Automated analysis of jaw-opening pace was efficient and equally comparable with the traditional manual counting method across the three age groups. A declining trend in jaw-opening pace among the old age group was found but with no statistically significant difference.
CONCLUSIONS: A jaw-opening motion monitoring tool with reliable automatic pace analysis software was validated in young and old ages The jaw-opening pace demonstrated a tendency to decline with age.
摘要：
目的：研究表明，高速下颌张开运动可有效改善吞咽功能。然而,没有客观的工具可用于监测下颌张开速度。这项研究旨在开发一种客观的工具，用于监测和验证颌骨张开的速度，并在不同年龄段的年轻人和老年人之间进行比较。
方法：连接到自动记录和分析系统的称重传感器插入式钳口垫用于记录钳口打开运动，以进行离线分析。我们招募了58名来自不同年龄段的健康志愿者（20-39y/o；40-59y/o；60-79y/o）。在2分钟的录制过程中，每位参与者被指示在佩戴传感器的同时尽快完全打开和关闭下颚.Bland-Altman阴谋,采用配对t检验和Pearson相关性检验比较人工计数和自动软件分析的下颌张开运动次数.比较了三个年龄组在2分钟记录期间的下颌张开运动次数。
结果：在三个年龄组中，下颌张开速度的自动分析是有效的，并且与传统的手动计数方法具有同等可比性。发现老年组的下巴张开速度呈下降趋势，但差异无统计学意义。
结论：具有可靠的自动步速分析软件的下颌张开运动监测工具在年轻人和老年人中都得到了验证。下巴张开的速度显示出随着年龄的增长而下降的趋势。
结论：该监测工具还可用于在步速控制中的下颌张开运动训练期间提供视觉反馈。
方法：连接到自动记录和分析系统的称重传感器插入式钳口垫用于记录钳口打开运动，以进行离线分析。我们招募了58名来自不同年龄段的健康志愿者（20-39y/o；40-59y/o；60-79y/o）。在2分钟的录制过程中，每位参与者被指示在佩戴传感器的同时尽快完全打开和关闭下颚.Bland-Altman阴谋,采用配对t检验和Pearson相关性检验比较人工计数和自动软件分析的下颌张开运动次数.比较了三个年龄组在2分钟记录期间的下颌张开运动次数。
结果：在三个年龄组中，下颌张开速度的自动分析是有效的，并且与传统的手动计数方法具有同等可比性。发现老年组的下巴张开速度呈下降趋势，但差异无统计学意义。
结论：具有可靠的自动步速分析软件的下颌张开运动监测工具在年轻人和老年人中都得到了验证。下巴张开的速度显示出随着年龄的增长而下降的趋势。
结论：该监测工具还可用于在步速控制中的下颌张开运动训练期间提供视觉反馈。
