Computer keyswitch force-displacement characteristics affect muscle activity patterns during index finger tapping

Journal of Electromyography and Kinesiology

Volumn 19, Issue 5, 2009, Pages 810-820

  Lee, David L ^a   Kuo, Po Ling ^b   Jindrich, Devin L ^c   Dennerlein, Jack T ^a  

^a HARVARD SCHOOL OF PUBLIC HEALTH   (United States)

^b HARVARD UNIVERSITY   (United States)

^c ARIZONA STATE UNIVERSITY   (United States)

Author keywords

Computer; Design; Electromyography; Finger; Force; Force displacement characteristics; Keyboard; Keyswitch; Motor control

Indexed keywords

ADULT; ARTICLE; BIOMECHANICS; CONTROLLED STUDY; ELECTROMYOGRAPHY; EQUIPMENT DESIGN; ERGONOMICS; FEMALE; FLEXOR MUSCLE; HUMAN; HUMAN COMPUTER INTERACTION; HUMAN EXPERIMENT; INDEX FINGER; KEYBOARD; MALE; MOTOR CONTROL; MOTOR PERFORMANCE; MUSCLE CONTRACTION; MUSCLE FORCE; NORMAL HUMAN; PRIORITY JOURNAL; TORQUE;

ADAPTATION, PHYSIOLOGICAL; ADULT; COMPUTER PERIPHERALS; FEMALE; FINGERS; HUMANS; MALE; MOTOR ACTIVITY; MOTOR SKILLS; MOVEMENT; MUSCLE, SKELETAL; PHYSICAL EXERTION; STRESS, MECHANICAL; WORD PROCESSING;

EID: 68949184619     PISSN: 10506411     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jelekin.2008.03.011     Document Type: Article

References (22)

1. Armstrong T.J., Foulke J.A., Martin B.J., et al. Investigation of applied forces in alphanumeric keyboard work. Am Ind Hyg Assoc J 55 1 (1994) 30-35
2. Burgar C.G., Valero-Cuevas F.J., and Hentz V.R. Fine-wire electromyographic recording during force generation. Application to index finger kinesiologic studies. Am J Phys Med Rehabil 76 6 (1997) 494-501
3. Dennerlein J.T., Mote Jr. C.D., and Rempel D.M. Control strategies for finger movement during touch-typing. The role of the extrinsic muscles during a keystroke. Exp Brain Res 121 1 (1998) 1-6
4. Gerard M.J., Armstrong T.J., Foulke J.A., et al. Effects of key stiffness on force and the development of fatigue while typing. Am Ind Hyg Assoc J 57 9 (1996) 849-854
5. Gerard M.J., Armstrong T.J., Franzblau A., et al. The effects of keyswitch stiffness on typing force, finger electromyography, and subjective discomfort. Am Ind Hyg Assoc J 60 6 (1999) 762-769
6. Gerr F., Marcus M., Ensor C., et al. A prospective study of computer users: I. Study design and incidence of musculoskeletal symptoms and disorders. Am J Ind Med 41 4 (2002) 221-235
7. Holzbaur K.R., Murray W.M., Gold G.E., et al. Upper limb muscle volumes in adult subjects. J Biomech 40 4 (2007) 742-749
8. Human Factors and Ergonomics Society (BSR/HFES100). Human factors engineering of computer workstations. Santa Monica: CA Human Factors and Ergonomics Society; 2002.
9. International Organization of Standards (ISO9241-4). Ergonomic requirements for office work with visual display terminals (VDTs) - Part 4: keyboard requirements. International Organization of Standards; 1998.
10. Jindrich D.L., Balakrishnan A.D., and Dennerlein J.T. Effects of keyswitch design and finger posture on finger joint kinematics and dynamics during tapping on computer keyswitches. Clin Biomech (Bristol, Avon) 19 6 (2004) 600-608
11. Kryger A.I., Andersen J.H., Lassen C.F., et al. Does computer use pose an occupational hazard for forearm pain; from the NUDATA study. Occup Environ Med 60 11 (2003) e14
12. Kuo P.L., Lee D.L., Jindrich D.L., et al. Finger joint coordination during tapping. J Biomech 39 16 (2006) 2934-2942
13. Lassen C.F., Mikkelsen S., Kryger A.I., et al. Elbow and wrist/hand symptoms among 6943 computer operators: a 1-year follow-up study (the NUDATA study). Am J Ind Med 46 5 (2004) 521-533
14. Marcus M., Gerr F., Monteilh C., et al. A prospective study of computer users: II. Postural risk factors for musculoskeletal symptoms and disorders. Am J Ind Med 41 4 (2002) 236-249
15. Martin B.J., Armstrong T.J., Foulke J.A., et al. Keyboard reaction force and finger flexor electromyograms during computer keyboard work. Hum Factors 38 4 (1996) 654-664
16. Milner T.E., and Dhaliwal S.S. Activation of intrinsic and extrinsic finger muscles in relation to the fingertip force vector. Exp Brain Res 146 2 (2002) 197-204
17. Radwin R.G., and Jeng O.J. Activation force and travel effects on overexertion in repetitive key tapping. Hum Factors 39 1 (1997) 130-140
18. Radwin R.G., and Ruffalo B.A. Computer key switch force-displacement characteristics and short-term effects on localized fatigue. Ergonomics 42 1 (1999) 160-170
19. Rempel D., Dennerlein J., Mote Jr. C.D., et al. A method of measuring fingertip loading during keyboard use. J Biomech 27 8 (1994) 1101-1104
20. Rempel D., Serina E., Klinenberg E., et al. The effect of keyboard keyswitch make force on applied force and finger flexor muscle activity. Ergonomics 40 8 (1997) 800-808
21. Rempel D., Tittiranonda P., Burastero S., et al. Effect of keyboard keyswitch design on hand pain. J Occup Environ Med 41 2 (1999) 111-119
22. Viikari-Juntura E., and Silverstein B. Role of physical load factors in carpal tunnel syndrome. Scand J Work Environ Health 25 3 (1999) 163-185