کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6947613 | 1450700 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Texting with touchscreen and keypad phones - A comparison of thumb kinematics, upper limb muscle activity, exertion, discomfort, and performance
ترجمه فارسی عنوان
ارسال پیام با گوشی های صفحه لمسی و صفحه لمسی - مقایسه سینماتیک انگشت شست، فعالیت عضلات اندام فوقانی، اعمال فشار، ناراحتی و عملکرد
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
تعامل انسان و کامپیوتر
چکیده انگلیسی
This study aimed to compare thumb kinematics and upper limb muscle activity, and the influence of hand size, when texting on a keypad smartphone and a touchscreen smartphone. Furthermore, the study compared exertion, discomfort, and performance when texting on the two phones. The thumb kinematics were tracked using a 3D motion analysis system and muscle activity was registered in six upper limb muscles using surface electromyography in 19 participants. When texting on the touchscreen phone compared to the keypad phone thumb flexion (pâ¯=â¯0.008) and flexion/extension range of motion were smaller (pâ¯=â¯0.02), the thumb was on average less internally rotated (pâ¯=â¯0.02), and activity (50th and 90th percentile) of the thumb and forearm muscles was lower (pâ¯â¤â¯0.05). The differences in thumb flexion were found only in the group with shorter hands and the differences in muscle activity was found only in the group with longer hands. These findings suggest there are differences in risks for developing musculoskeletal disorders during smartphone use with different key activation mechanisms and different hand sizes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Ergonomics - Volume 70, July 2018, Pages 232-239
Journal: Applied Ergonomics - Volume 70, July 2018, Pages 232-239
نویسندگان
Ewa Gustafsson, Pieter Coenen, Amity Campbell, Leon Straker,