“Carpal tunnel syndrome is caused by pressure on the median nerve. The carpal tunnel is a narrow passageway surrounded by bones and ligaments on the palm side of your hand. When the median nerve is compressed, the symptoms can include numbness, tingling and weakness in the hand and arm….Proper treatment usually relieves the tingling and numbness and restores wrist and hand function.” -MayoClinic

“Carpal tunnel syndrome (CTS) is the most important disorders
for computer users. Nearly 260000 carpal tunnel syndrome surgeries happening in a year [,] 47% of that is associated with users job”. -Faraji, A., & Farahmand, M. R. (2013)

Hand major motions and its relation with CTS
Faraji & Farahmand express four motions that are predictable within an interaction between a user’s hand and a regular computer mouse:
• Pronation of forearm;
• Ulnar and radial deviation of wrist;
• Dorsi flexion of wrist;
• Extension, bending and lateral motions of fingers.

“If these motions exceed the excessive values, it leads to WMSDs in upper limbs. In fact these excessive situations will increase the carpal tunnel pressure”. -Faraji, A., & Farahmand, M. R. (2013).

References

Faraji, A., & Farahmand, M. R. (2013). “An ergonomic computer mouse for professional designers.” Applied Mechanics and Materials, 440, 194. doi:http://dx.doi.org.ezproxy.kpu.ca:2080/10.4028/www.scientific.net/AMM.440.194

MayoClinic. (2020, February 01). “Carpal tunnel syndrome.” Retrieved September 24, 2020, from https://www.mayoclinic.org/diseases-conditions/carpal-tunnel-syndrome/symptoms-causes/syc-20355603