Schwellnus Heidi, Carnahan Heather, Kushki Azadeh, Polatajko Helene, Missiuna Cheryl, Chau Tom
Graduate Department of Rehabilitation Science, University of Toronto, Ontario, Canada.
Aust Occup Ther J. 2012 Jun;59(3):180-7. doi: 10.1111/j.1440-1630.2012.01014.x.
To investigate the impact of common pencil grasp patterns on the speed and legibility of handwriting after a 10-minute copy task, intended to induce muscle fatigue, in typically developing children and in those non-proficient in handwriting.
A total of 120 Grade 4 students completed a standardised handwriting assessment before and after a 10-minute copy task. The students indicated the perceived difficulty of the handwriting task at baseline and after 10 minutes. The students also completed a self-report questionnaire regarding their handwriting proficiency upon completion.
The majority of the students rated higher effort after the 10-minute copy task than at baseline (rank sum: P = 0.00001). The effort ratings were similar for the different grasp patterns (multiple linear regression: F = 0.37, P = 0.895). For both typically developing children and those with handwriting issues, the legibility of the writing samples decreased after the 10-minute copy task but the speed of writing increased. CONCLUSIONS AND SIGNIFICANCE OF THE STUDY: The quality of the handwriting decreased after the 10-minute copy task; however, there was no difference in the quality or speed scores among the different pencil grasps before and after the copy task. The dynamic tripod pencil grasp did not offer any advantage over the lateral tripod or the dynamic or lateral quadrupod pencil grasps in terms of quality of handwriting after a 10-minute copy task. These four pencil grasp patterns performed equivalently. Our findings question the practice of having students adopt the dynamic tripod pencil grasp.
研究在一项旨在诱发肌肉疲劳的10分钟抄写任务后,常见的握笔方式对发育正常儿童和书写不熟练儿童的书写速度和清晰度的影响。
120名四年级学生在10分钟抄写任务前后完成了标准化的书写评估。学生们在基线时和10分钟后指出了书写任务的感知难度。学生们在完成任务后还完成了一份关于他们书写熟练程度的自我报告问卷。
大多数学生在10分钟抄写任务后的努力程度评分高于基线时(秩和:P = 0.00001)。不同握笔方式的努力程度评分相似(多元线性回归:F = 0.37,P = 0.895)。对于发育正常的儿童和有书写问题的儿童,10分钟抄写任务后书写样本的清晰度下降,但书写速度加快。研究结论及意义:10分钟抄写任务后书写质量下降;然而,在抄写任务前后,不同握笔方式的质量或速度得分没有差异。在10分钟抄写任务后的书写质量方面,动态三指握笔法与侧三指握笔法或动态或侧四指握笔法相比没有任何优势。这四种握笔方式表现相当。我们的研究结果对让学生采用动态三指握笔法的做法提出了质疑。