휴대전화 이용이 자세조절에 미치는 영향
Effects of Using a Mobile Phone on Postural Control
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초록
In daily activities, people often perform two or more tasks simultaneously. This is referred to as dual-tasking or multi-tasking. The purpose of this study was to examine the effects of performing dual tasks while using a mobile phone on static and dynamic postural stability. Twenty-four subjects were asked to stand on a force plate and then instructed to perform a balance task only (BT), a balance task while listening to music (BTL), a balance task while talking on the mobile phone (BTT), and a balance task while sending text messages (BTS). We used the BioRescueⓇ to measure postural sway and limit of stability for static and dynamic postural stability. Also the star excursion balance test (SEBT) was used to measure dynamic postural stability. A one-way ANOVA with repeated measures was used to compare the effects of the BT, BTL, BTT, and BTS. The Bonferroni's post hoc test was used to determine the differences among four tasks. Carrying out the BTS significantly decreased the limit of stability compared with carrying out the BT, BTL, and BTT (p<.05). In limit of stability, total surface area of BTT was more significantly decreased than that of BT and total surface area of BTS was more decreased than that of BT, BTL and BTT (p<.05). In the SEBT, the BTS displayed significantly smaller reach distance values compared with the BT or BTL (p<.05). These findings suggest that performing the balance task while sending text message on the mobile phone decreases dynamic postural stability, whereas performing the same task while listening to music using the mobile phone does not. Therefore, it requires more attention to maintain dynamic balance while sending text messages.
Abstract
In daily activities, people often perform two or more tasks simultaneously. This is referred to as dual-tasking or multi-tasking. The purpose of this study was to examine the effects of performing dual tasks while using a mobile phone on static and dynamic postural stability. Twenty-four subjects were asked to stand on a force plate and then instructed to perform a balance task only (BT), a balance task while listening to music (BTL), a balance task while talking on the mobile phone (BTT), and a balance task while sending text messages (BTS). We used the BioRescueⓇ to measure postural sway and limit of stability for static and dynamic postural stability. Also the star excursion balance test (SEBT) was used to measure dynamic postural stability. A one-way ANOVA with repeated measures was used to compare the effects of the BT, BTL, BTT, and BTS. The Bonferroni's post hoc test was used to determine the differences among four tasks. Carrying out the BTS significantly decreased the limit of stability compared with carrying out the BT, BTL, and BTT (p<.05). In limit of stability, total surface area of BTT was more significantly decreased than that of BT and total surface area of BTS was more decreased than that of BT, BTL and BTT (p<.05). In the SEBT, the BTS displayed significantly smaller reach distance values compared with the BT or BTL (p<.05). These findings suggest that performing the balance task while sending text message on the mobile phone decreases dynamic postural stability, whereas performing the same task while listening to music using the mobile phone does not. Therefore, it requires more attention to maintain dynamic balance while sending text messages.
참고문헌 (28)
- Andersson G, "A dual task study of interference between mental activity and control of balance", Am J Otol, 19(5), pp.632~637 (1998)
- Brody LT, "Impaired balance, In Therapeutic Exercise: Moving toward function 2nd ed", pp.149~166 (2005), Lippincott Williams & Wilkins
- Dault MC, "Postural control and cognitive task performance in healthy participants while balancing on different support-surface configurations", Gait Posture, 14(3), pp.248~255 (2001)
- Gribble PA, "Time-of-day influences on static and dynamic postural control", J Athl Train, 42(1), pp.35~41 (2007)
- Hatfield J, "The effects of mobile phone use on pedestrian crossing behaviour at signalized and unsignalised intersections", Accid Anal Prev, 39(1), pp.197~205 (2007)
- Kisner C, "Therapeutic Exercise: Foundations and techniques. 5th ed", pp.251~272 (2007), F.A. Davis Co
- Lacour M, "Posture control, aging, and attention resources: Models and posture-analysis methods", Neurophysiol Clin, 38(6), pp.411~421 (2008)
- Lajoie Y, "Attentional demands for static and dynamic equilibrium", Exp Brain Res, 97(1), pp.139~144 (1993)
- Marsh AP, "The effect of age on the attentional demands of postural control", Gait Posture, 12(2), pp.105~113 (2000)
- Maylor EA, "Age differences in postural stability are increased by additional cognitive demands", J Gerontol B Psychol Sci Soc Sci, 51(3), pp.143~154 (1996)
- Morioka S, "The effects of an attentional demand tasks on standing posture control", J Physiol Anthropol Appl Human Sci, 24(3), pp.215~219 (2005)
- Munro AG, "Between-session reliability of the star excursion balance test", Phys Ther Sport, 11(4), pp.128~132 (2010)
- Nasar J, "Mobile telephones, distracted attention, and pedestrian safety", Accid Anal Prev, 40(1), pp.69~75 (2008)
- Olmsted LC, "Efficacy of the Star Excursion Balance Tests in detecting reach deficits in subjects with chronic ankle instability", J Athl Train, 37(4), pp.501~506 (2002)
- Paquette C, "Aging affects coordination of rapid head motions with trunk and pelvis movements during standing and walking", Gait Posture, 24(1), pp.62~69 (2006)
- Patla AE, "Anticipatory control of center of mass and joint stability during voluntary arm movement from a standing posture: Interplay between active and passive control", Exp Brain Res, 143(3), pp.318~327 (2002)
- Patten CJ, "Using mobile telephones: Cognitive workload and attention resource allocation", Accid Anal Prev, 36(3), pp.341~350 (2004)
- Pavol MJ, "Detecting and understanding differences in postural sway. Focus on A new interpretation of spontaneous sway measures based on a simple model of human postural control", J Neurophysiol, 93(1), pp.20~21 (2005)
- Pellecchia GL, "Postural sway increases with attentional demands of concurrent cognitive task", Gait Posture, 18(1), pp.29~34 (2003)
- Plisky PJ, "Star Excursion Balance Test as a predictor of lower extremity injury in high school basketball players", J Orthop Spots Phys Ther, 36(12), pp.911~919 (2006)
- Rahnama L, "Attentional demands and postural control in athletes with and without functional ankle instability", J Orthop Sports Phys Ther, 40(3), pp.180~187 (2010)
- Redelmeier DA, "Association between cellular telephone calls and motor vehicle collisions", N Engl J Med, 326(7), pp.453~458 (1997)
- Redfern MS, "Attention influences sensory integration for postural control in older adults", Gait Posture, 14(3), pp.211~216 (2001)
- Riley MA, "Effects of visual and auditory short-term memory tasks on the spatiotemporal dynamics and variability of postural sway", J Mot Behav, 37(4), pp.311~324 (2005)
- Shumway-Cook A, "Attentional demands and postural control: The effect of sensory context", J Gerontol A Biol Sci Med Sci, 55(1), pp.M10~M16 (2000)
- Strayer DL, "Driven to distraction: Dual-task studies of simulated driving and conversing on a cellular telephone", Psych Sci, 12(6), pp.462~466 (2001)
- Wikstrom EA, "Dynamic postural stabiity in subjects with braced, functionally unstable ankles", J Athl Train, 41(3), pp.245~250 (2006)
- Woollacott M, "Attention and the control of posture and gait: A review of an emerging area of research", Gait Posture, 16(1), pp.1~14 (2002)