| Computers are ubiquitous in daily life; they have become a required tool for students and many professions. Computer input devices such as mice and keyboards are known risk factors for upper extremity muscle skeletal disorders, and previous research has suggested that some device designs are safer than others, and women experience a higher rate of injury which may be due to their smaller anthropometry. This study used electromyography to examine the relationship among three different computer pointing devices in women across an anthropometric spectrum. In addition, the devices were tested in both the normal location to the right of the keyboard and at the center. Subjects were asked qualitative questions (yes/no and likert) about their experiences with the devices. The results showed a significant difference in measured and reported outcomes due to the different devices, but location and anthropometric measurements did not have a significant effect. |
