Aoki T, Kinoshita H
Graduate School of Human Sciences, Osaka University, Suita, Japan.
Ergonomics. 2001 Dec 15;44(15):1368-83. doi: 10.1080/00140130110107452.
The purposes of this study were: (1) to provide descriptive temporal and force data for fast alternate tapping by the index and middle fingers ('double-finger mode'), and to compare it with one finger fast tapping ('single-finger mode'); (2) to determine any differences in the dynamic motor function of individual fingers with these tapping tasks; and (3) to determine any differences between the single-finger mode and tapping with the whole hand ('hand mode'). Eleven healthy males tapped force transducer(s) for 7 s as fast as possible using their dominant hand. The double-finger mode had a greater peak force and a 50% faster tapping frequency than the single-finger mode. There was no correlation between the single-finger and double-finger modes in the temporal data. Tapping with two fingers thus seems to be organized with a motor strategy that is different from that with one finger, and can possibly capture an individual's additional or different motor function. A comparison between the two fingers revealed that the index finger had a significantly faster tapping frequency, indicating the superiority of the index finger over the middle finger in terms of dynamic motor function. The hand mode had a significantly faster tapping frequency with greater peak force than the single-finger mode. A distinction is essential between these two modes.
（1）提供示指和中指快速交替敲击（“双指模式”）的描述性时间和力量数据，并将其与单指快速敲击（“单指模式”）进行比较；（2）确定在这些敲击任务中各手指动态运动功能的差异；（3）确定单指模式与全手敲击（“全手模式”）之间的差异。11名健康男性用优势手尽可能快地敲击力传感器7秒。双指模式比单指模式具有更大的峰值力和快50%的敲击频率。时间数据中，单指模式和双指模式之间没有相关性。因此，用两根手指敲击似乎是通过一种与用一根手指不同的运动策略来组织的，并且可能反映了个体额外的或不同的运动功能。对两根手指的比较显示，示指的敲击频率明显更快，表明在动态运动功能方面示指优于中指。全手模式比单指模式具有明显更快的敲击频率和更大的峰值力。区分这两种模式至关重要。
