RESUMO
Objective To measure the dynamic parameters of pushing manipulation with one-finger (PMOF), and provide the quantitative basis for evaluation and measurable criteria of PMOF. Methods A multi-film pressure measurement system was used to test and record the graphics of the operator when performing PMOF, and the data of corresponding parameters were recorded and analyzed. Results For PMOP, the maximum force was (11.75±0.88) N, the operation frequency was (111.7±6.98) times/ min, the cycle was (539±35.73) ms, the effective work ratio was greater than 0.28, and the waveform homogeneity was greater than 0.927. Conclusions The requirement of being permanent, forceful, homogeneity during PMOP can be objectively measured thorough graphics and quantitative indicators, but there is still a lack of quantitative indicators to measure and evaluate the requirement of being soft, deep and thorough for PMOF.
RESUMO
Objective To study the frequency and effective work/time ratio of pushing manipulation with one finger (PMOF). Methods One skilled expert and nine beginners of PMOF were chosen. The frequency, effective work time/ratio during different work periods were recorded and compared after the technique information of each subject operating PMOF was collected by Novel Pliance Mobile System software. Results The operation frequency of each subject was all below 110/min, while the frequency of skilled expert was about 78/min. The time ratio between secondary work period and primary work period for the skilled expert was smaller than that of beginners. Conclusions The operation frequency of PMOF is preferably at 78/min, and the preferred time ratio between secondary work period and primary work period should be slightly larger than 0.28.