In today’s society, computer-related activities are ubiquitous, and keyboard/mouse operation of long duration is
common among people. Some studies pointed out that using a mouse, with the wrong posture,
and for more than 5.6 hours per week, will increase the risk of body injury.
Oppression or straining body tissues, such as bones, muscles, tendons, and ligaments,
could cause pain, numbness, or even tissue damage.