A New Approach to the Mouse Arm Syndrome

• Autorzy: Ullman J. , Kangas N. , Ullman P. , Wartenberg F. , Ericson M.
• Języki publikacji: EN

Abstrakty

EN

OBJECTIVES: The study validates a new computer mouse concept. The tested device is a small mouse with a pivoting pen-shaped handle. The hypothesis behind the design is the assumptions that the pen grip requires less static tension than the normal mouse grip and that fine-motor, high precision tasks normally are done with finger movements with forearm at rest. METHODS: Four muscles were monitored with electromyography (EMG) during work with a new mouse and with a traditional mouse. RESULTS: EMG activity was significant lower, in M. pronator teres - 46%, M. extensor digitorum - 46%, M. trapezius - 69%, and M. levator scapulae - 82%, during work with the new mouse as compared to the traditional mouse. CONCLUSION: Altering the design of the computer mouse can significantly reduce muscular tension.

Słowa kluczowe

EN

computer mouse; Repetitive Stress Injury; Mouse Arm Syndrome; EMG; static tension; carpal tunnel syndrome; pen grip; trapezius; levator scapulae; extensor digitorum; pronator teres; ergonomic mouse; intuitive interface

PL

komputer; fizjologia pracy; ergonomia; uraz kończyny górnej; zagrożenia zdrowia; zespół cieśni nadgarstka; praca przy komputerze

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2003
• Tom: Vol. 9, No. 4
• Strony: 463--477
• Opis fizyczny: Bibliogr. 33 poz., rys., tab., wykr.

Twórcy

autor

Ullman J.

• Medinova AB, Gothenburg, Sweden

autor

Kangas N.

• Kangas Styrteknik AB, Gothenburg, Sweden

autor

Ullman P.

• Medinova AB, Gothenburg, Sweden

autor

Wartenberg F.

• Ericsson Mobile Platforms AB, Lund, Sweden

autor

Ericson M.

• Department of Industrial Economics, Royal Institute of Technology, Stockholm, Sweden

Bibliografia

• 1.Aborg, E., & Ericson, M.O. (1998). Work content and satisfaction before and after a reorganisation of data entry work. Applied Ergonomics, 29(6), 473-480.
• 2.Baker, N.A., Jacobs, K., & Trombly, C. (1999). The effect of Video Display Terminal (VDT) mouse use on muscle contractions in the neck and forearm. Work, 12(2), 109-116.
• 3.Burgess-Limerick, R., Shemmell, J., Scadden, R., & Plooy, A. (1999). Wrist posture during computer pointing device use. Clinical Biomechanics (Bristol, Avon), 14(4), 280-286.
• 4.Chaparro, A., Rogers, M., Fernandez, J., Bohan, M., Choi, S.D., & Stumpfhauser, L. (2000). Range of motion of the wrist: Implications for designing computer input devices for the elderly. Journal of Disability and Rehabilitation, 22(13-14), 633-637.
• 5.Cook, C.J., & Kothiyal, K. (1998). Influence of mouse position on muscular activity in the neck, shoulder and arm in computer users. Applied Ergonomics, 29(6), 439-443.
• 6.Ekman, A., Andersson, A., Hagberg, M., & Hjelm, E. W. (2000). Gender differences in musculoskeletal health of computer and mouse users in the Swedish workforce. Occupational Medicine (London), 50(8), 608-613.
• 7.Fernstrom, E.A., & Ericson, M.O. (1996). Upper-arm elevation during office work. Ergonomics, 39(10), 1221-1230.
• 8.Finsen, L., Sogaard, K., Jensen, C., Borg, V., & Christensen, H. (2001). Muscle activity and cardiovascular response during computer-mouse work with and without memory demands. Ergonomics, 44(14), 1312-1329.
• 9.Gustafsson, E., & Hagberg, M. (2003). Computer mouse use in two different hand positions: exposure, comfort, exertion and productivity. Applied Ergonomics, 34(2), 107-113.
• 10.Hagberg, M., Tornqvist, E.W., & Toomingas, A. (2002). Self-reported reduced productivity due to musculoskeletal symptoms: Associations with workplace and individual factors among white-collar computer users. Journal of Occupational Rehabilitation, 12(3), 151-162.
• 11.Harvey, R., & Peper, E. (1997). Surface electromyography and mouse use position. Ergonomics, 40(8), 781-789.
• 12.Imamizu, H., Miyauchi, S., Tamada, T., Sasaki, Y., Takino, R., Putz, B., et al. (2000). Human cerebellar activity reflecting an acquired internal model of a new tool [see comments]. Nature, 403(6766), 192-195.
• 13.Jensen, C., Borg, V., Finsen, L., Hansen, K., Juul-Kristensen, B., & Christensen, H. (1998). Job demands, muscle activity and musculoskeletal symptoms in relation to work with the computer mouse. Scandinavian Journal of Work, Environment & Health, 24(5), 418-424.
• 14.Jensen, C., Finsen, L., Hansen, K., & Christensen, H. (1999). Upper trapezius muscle activity patterns during repetitive manual material handling and work with a computer mouse. Journal of Electromyography and Kinesiology, 9(5), 317-325.
• 15.Karlqvist, L., Hagberg, M., & Selin, K. (1994). Variation in upper limb posture and movement during word processing with and without mouse use. Ergonomics, 37(7), 1261-1267.
• 16.Karlqvist, L.K., Bernmark, E., Ekenvall, L., Hagberg, M., Isaksson, A., & Rosto, T. (1998). Computer mouse position as a determinant of posture, muscular load and perceived exertion. Scandinavian Journal of Work, Environment & Health, 24(1), 62-73.
• 17.Karlqvist, L.K., Hagberg, M., Koster, M., Wenemark, M., & Nell, R. (1996). Musculoskeletal symptoms among computer-assisted design (CAD) operators and evaluation of a selfassessment questionnaire. Occupational and Environmental Health, 2(3), 185-194.
• 18.Keir, P.J., Bach, J.M., & Rempel, D. (1999). Effects of computer mouse design and task on carpal tunnel pressure. Ergonomics, 42(10), 1350-1360.
• 19.Kelaher, D., Nay, T., Lawrence, B., Lamar, S., & Sommerich, C.M. (2001). An investigation of the effects of touchpad location within a notebook computer. Applied Ergonomics, 32(1), 101-110.
• 20.Kotani, K., & Horii, K. (2003). An analysis of muscular load and performance in using a pen-tablet system. Journal of Physiological Anthropology and Applied Human Science, 22(2), 89-95.
• 21.Laursen, B., Jensen, B.R., Garde, A.H., & Jorgensen, A.H. (2002). Effect of mental and physical demands on muscular activity during the use of a computer mouse and a keyboard. Scandinavian Journal of Work, Environment & Health, 28(4), 215-221.
• 22.Laursen, B., Jensen, B.R., & Ratkevicius, A. (2001). Performance and muscle activity during computer mouse tasks in young and elderly adults. European Journal of Applied Physiology, 84(4), 329-336.
• 23.Lintula, M., Nevala-Puranen, N., & Louhevaara, V. (2001). Effects of Ergorest arm supports on muscle strain and wrist positions during the use of the mouse and keyboard in work with visual display units: A work site intervention. International Journal of Occupational Safety and Ergonomics, 7(1), 103-116.
• 24.Phillips, J.G., & Triggs, T. J. (2001). Characteristics of cursor trajectories controlled by the computer mouse. Ergonomics, 44(5), 527-536.
• 25.Rempel, D., Tittiranonda, P., Burastero, S., Hudes, M., & So, Y. (1999). Effect of keyboard keyswitch design on hand pain. Journal of Occupational and Environmental Medicine, 41(2), 111-119.
• 26.Smith, M.W., Sharit, J., & Czaja, S.J. (1999). Aging, motor control, and the performance of computer mouse tasks. Human Factors, 41(3), 389-396.
• 27.Sundelin, G., & Hagberg, M. (1992). Electromyographic signs of shoulder muscle fatigue in repetitive arm work paced by the Methods-Time Measurement system. Scandinavian Journal of Work, Environment & Health, 18(4), 262-268.
• 28.Tittiranonda, P., Rempel, D., Armstrong, T., & Burastero, S. (1999a). Effect of four computer keyboards in computer users with upper extremity musculoskeletal disorders. American Journal of Industrial Medicine, 35(6), 647-661.
• 29.Tittiranonda, P., Rempel, D., Armstrong, T., & Burastero, S. (1999b). Workplace use of an adjustable keyboard: Adjustment preferences and effect on wrist posture. American Industrial Hygiene Association Journal, 60(3), 340-348.
• 30.Visser, B., de Korte, E., van der Kraan, I., & Kuijer, P. (2000). The effect of arm and wrist supports on the load of the upper extremity during VDU work. Clinical Biomechanics (Bristol, Avon), 15(Suppl 1), S34-38.
• 31.Wahlstrom, B.J., Svensson, J., Hagberg, M., & Johnson, P.W. (2000). Differences between work methods and gender in computer mouse use [in process citation]. Scandinavian Journal of Work, Environment & Health, 26(5), 390-397.
• 32.Wahlstrom, J., Hagberg, M., Johnson, P. W., Svensson, J., & Rempel, D. (2002). Influence of time pressure and verbal provocation on physiological and psychological reactions during work with a computer mouse. European Journal of Applied Physiology, 87(3), 257-263.
• 33.Zennaro, D., Laubli, T., Krebs, D., Klipstein, A., & Krueger, H. (2003). Continuous, intermitted and sporadic motor unit activity in the trapezius muscle during prolonged computer work. Journal of Electromyography and Kinesiology, 13(2), 113-124.