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This study examined the extent of perspective taking and language features represented in secondary students' text-based analytical writing. We investigated (1) whether perspective taking is related to writing quality, accounting for language features in writing; (2) whether students' English learner status is related to perspectives represented in their writing; and (3) whether the relation between perspective taking and writing quality differs by the level of language features (e.g., syntactic diversity, appropriate word usage, and tone). Secondary students' text-based analytical essays (N= 195, Grades 7–12) were coded for perspective taking and language features and analyzed using multiple regression. There was a higher frequency of own-side perspectives than dual perspectives. Dual perspective was related to writing quality after accounting for student demographics and grade levels. However, the relation was no longer statistically significant when language features were accounted for. English learners exhibited significantly less own-side perspectives compared to their English-only counterparts, but there was no difference in dual perspectives, which might be due to overall low frequency of dual perspectives represented in students' text-based analytical writing. The findings suggest the roles of both perspective taking and language features in quality writing. [ABSTRACT FROM AUTHOR]

Surface electromyogram (sEMG) is often used by to objectively measure muscular activity during rehabilitation exercises. sEMG is accurate, but it is unsuitable for uses outside the clinic, and patients can benefit from an unobtrusive device which can be readily used to ubiquitously measure abdominal muscle activation. In this study, we present a pressure sensor system which can be latched onto a belt to measure abdominal muscle activation. sEMG and pressure sensor output were measured in 15 healthy young males during isometric trunk flexion exercise (public trials registration number, KCT0002351), and the results were highly correlated (median R > 0.939). As initial contact force can change the pressure sensor sensitivity, the experiment was performed at two different levels of belt tightness, but the correlations did not significantly improve after tightening the belt, suggesting that the system can be used to ubiquitously and unobtrusively monitor abdominal muscle activity with minimal discomfort. [ABSTRACT FROM AUTHOR]