The purpose of this study was to investigate the effect of the two different types of chairs on trapezius muscle activation during dictation tasks. Seventeen university students, each of whom were within standard deviation of the mean Korean standard body size, voluntarily participated in this study. Surface electromyography was used to collect electrical signals from both the upper and lower trapezius muscles. Amplitude Probability Distribution Function (APDF) was performed to analyze the muscle activity. The findings of this study were 1) The backrest-point height of the auditorium chair and the height, length and width of the connected desk were shorter than what was suggested by the KS. Another difference was that the auditorium chair had a bigger angle of the backrest compared to the classroom chair. 2) Regarding within-subject effect the sole statistically significant difference was found between activation of the upper trapezius muscle. The upper trapezius muscle's %RVC in the APDF 10th-50th-90th percentile was statistically higher for participants sitting in the auditorium chair than for participants sitting in the classroom chair (p<.05). 3) There was an interaction effect between the 'two chair-types' and the 'two muscle-sides' in the APDF 10th-50th percentile (p<.05). 4) There was an interaction effect between the 'two chair-types' and the 'three gaze-direction' in the APDF 90th percentile (p<.05). The findings of this study indicated that maintaining a writing posture for a prolonged period of time in an auditorium chair significantly increased the left upper trapezius muscle activation compared to a classroom chair.

This study aimεd to ìnvestigatε the relationship between phonemic awareness and listening comprehension ability. For this paπIC비ar research purpose thζ English name test and TOEFL LlC tests were employεd and a total of 34 university students participaκd in this εxpεriment. The English name tεst consisting of relativεly unheard 26 English namζs was specially dεsigned and adminisκrεd for the participants to depend on their own phonemic awarenεss ability, not applying their cognitive prior knowlεdge. whεn they transcribε:d the n잉nεs using the phonεtic alphabεts. Thε statistical result showed that thε Pearson's product-moment correlation coεfficient was .550* and its coefficient of determination was .303. This result c1ζarly demonstrated that the phonemic awareness ability was highly correlatεd with the overall Iistening comprεhension ability and implied thε need for implεmεnting the so-called bottom-up method for developing students' phonζrnic awareness ability at primary or secondary school levels.