Objective:Selective motor inhibition is known to decline with age. The purpose of this study was to determine the frequency of failures at inhibitory control of adjacent finger movements while performing a repetitive finger tapping task in young, middle-aged and older adults. Potential education and sex effects were also evaluated.Methods:Kinematic recordings of adjacent finger movements were obtained on 107 healthy adults (ages 20–80) while they performed a modified version of the Halstead Finger Tapping Test (HTFF). Study participants were instructed to inhibit all finger movements while tapping with the index finger.Results:Inability to inhibit adjacent finger movements while performing the task was infrequent in young adults (2.9% of individuals between 20 and 39 years of age) but increased with age (23.3% between the ages of 40 and 59; 31.0% between ages 60 and 80). Females and males did not differ in their inability to inhibit adjacent finger movements, but individuals with a college education showed a lower frequency of failure to inhibit adjacent finger movements (10.3%) compared to those with a high school education (28.6%). These findings were statistically significant only for the dominant hand.Conclusion:Selective motor inhibition failures are most common in the dominant hand and occur primarily in older healthy adults while performing the modified version of the HFTT. Monitoring selective motor inhibition failures may have diagnostic significance.

中文翻译：

---

在进行改良版 Halstead 手指敲击测试时对相邻手指运动的抑制控制：年龄、教育和性别的影响

目的：已知选择性运动抑制会随着年龄的增长而下降。本研究的目的是确定在年轻、中年和老年人中执行重复手指敲击任务时，抑制控制相邻手指运动的失败频率。还评估了潜在的教育和性影响。方法：对 107 名健康成年人（20-80 岁）进行了改进版的 Halstead 手指敲击测试 (HTFF)，获得了相邻手指运动的运动记录。研究参与者被指示在用食指敲击时抑制所有手指运动。结果：在执行任务时无法抑制相邻手指运动在年轻人中并不常见（2.9% 的人在 20 至 39 岁之间），但随着年龄的增长而增加（23.3% 年龄在 40 至 59 岁之间；31. 60 至 80 岁之间为 0%）。女性和男性在抑制相邻手指运动的能力方面没有差异，但与受过高中教育的人（28.6%）相比，受过大学教育的人抑制相邻手指运动的失败率较低（10.3%）。这些发现仅对惯用手具有统计学意义。结论：选择性运动抑制失败在惯用手中最常见，主要发生在老年健康成人中，同时执行改良版 HFTT。监测选择性运动抑制故障可能具有诊断意义。3%）与高中学历（28.6%）相比。这些发现仅对惯用手具有统计学意义。结论：选择性运动抑制失败在惯用手中最常见，主要发生在老年健康成人中，同时执行改良版 HFTT。监测选择性运动抑制故障可能具有诊断意义。3%）与高中学历（28.6%）相比。这些发现仅对惯用手具有统计学意义。结论：选择性运动抑制失败在惯用手中最常见，主要发生在老年健康成人中，同时执行改良版 HFTT。监测选择性运动抑制故障可能具有诊断意义。