Abstract
This study investigated age-related differences in user performance and preferences using two widely available computer pointing devices, a mouse and trackball. Participants acquired on-screen targets of varying distance and size using point-and-click and click-and-drag motions. It was found that older adults took longer to complete movements than younger adults and did so to a greater extent for large amplitude movements, but that their movements were less variable. There was no age difference in movement time or variable error between the two devices. It has been hypothesized that the findings reflected the adoption of a device independent movement strategy by the elderly designed to compensate for age-related declines in motor control. Analysis of muscle activity (RMS) of the forearm flexor and extensor showed no age-related differences in muscle activity. Ratings of perceived extertion revealed that older adults reported higher levels of exertion than younger adults using the mouse during click-and-drag motions. In light of findings demonstrating that older adults have lower strength, this finding implies that the mouse requires a greater percentage of the elderlys' maximum force. These results taken together suggest that the trackball may be a better device for the elderly computer user especially when performing frequent, repetitive actions for prolonged periods of time.
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REFERENCES
National Highway Traffic Safety Administration. Traffic safety plan for older persons, DOT-HS-807-957. Washington DC: Department of Transportation, 1993.
Fox R. New track. CACM 1995; 28(5): 9.
Wolkamir R. When the work you do ends up costing you an arm and a leg. Smithsonian Mag May 1994; 90–102.
Nair SN, Hoag DW, Leonard DC, Sharit J, Czaja SJ. Effects of age and experience on mental workload for computer tasks. In: Proceedings of the Human Factors and Ergonomics Society 41st Annual Meeting. Human Factors and Erognonomics Society, 1997, pp. 139–143.
Czaja SJ, Shrit J. Age differences in the performance of computer-based work. Psychol Aging 1993; 8: 59–67.
Jay GM, Willis SL. Influence of direct computer experience on older adults' attitudes toward computers. J Gerontol: Psychol Sci 1992; 4: 250–257.
Johnson P, Dropkin J, Hewes J, Rempel D. Office ergonomics: Motion analysis of computer mouse usage. In: Proceedings of the American Industrial Hygiene Conference and Exposition. VA: AIHA, 1993.
Morgan M, Phillips JL, Bradshaw JB, Mattingley RI, Bradshaw JA. Age-related motor slowness: simply strategic? J Gerontol: Med Sci 1994; 49: 133–139.
Walker N, Philbin D, Fisk A. Age-related differences in movement control: Adjusting submovement structure to optimize performance. J Gerontol: Psychol Sci 1997; 52: 40–52.
Warabi T, Noda H, Kato T. Effect of aging on sensorimotor functions of eye and hand movements. Exp Neurol 1986; 92: 686–697.
Goggin NL, Stelmach GE. Age-related differences in a kinematic analysis of precued movements. Can J Aging 1990; 9: 487–496.
Welford AT. Signal, noise, performance, and age. Hum Factors 1981; 23: 97–109.
Charness N, Bosman EA, Elliott RG. Senior-friendly input devices: Is the pen mightier than the mouse? Presented at the 103rd Annual Convention of the American Psychological Association Meeting, New York, 1995.
Walker N, Millians J, Worden A. Mouse accelerations and performance of older computer users. In: Proceedings of the Human Factors and Ergonomics Society 40th Annual Meeting. Human Factors and Ergononomics Society, 1996, pp. 151–154.
Hsu SH, Huang CC, Tsuang YH, Sun JS Age-related differences in remote pointing performance. In: Proceedings of the Human Factors and Ergonomics Society 41st Annual Meeting. Human Factors and Erognonomics Society, 1997, pp. 148–156.
Soukoreff RW, MacKenzie IS. Generalized Fitts' law model builder. In: Companion Proceedings of CHI'95. 1995, pp. 113–114.
Schmidt RA, Zelaznick H, Hawkins B, Frank JS, Quinn JT. Motor-output variability: A theory for the accuracy of rapid motor acts. Psychol Rev 1979; 86: 415–451.
Borg AAV. Psychophysical bases of perceived extertion. Med Sci Sports Exerc 1982: 14: 377–381.
MacKenzie IS, Sellen A, Buxton W. A comparison of input devices in elemental pointing and dragging tasks. In: Proceedings of the CHI '91 Conference on Human Factors in Computing Systems. 1991, pp. 161–166.
Mathiowetz V, Kashman N, Volland G, Weber K, Dowe M. Grip and pinch strength: Normative data for adults. Arch Phys Med Rehab 1985; 66: 69–74.
Stubbs WB, Fernandez JE, Glenn WM. Normative data on joint ranges of motion of 25-to 54-year-old males. Int J Ind Erg 1993; 12(4): 265–272.
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Chaparro, A., Bohan, M., Fernandez, J. et al. Is the Trackball a Better Input Device for the Older Computer User?. J Occup Rehabil 9, 33–43 (1999). https://doi.org/10.1023/A:1021341415404
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DOI: https://doi.org/10.1023/A:1021341415404