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Effect of Secondary Motor and Cognitive Tasks on Timed Up and Go Test in Older Adults

Mukherjee, Anuradha
http://rave.ohiolink.edu/etdc/view?acc_num=toledo1375713209

Abstract Details

2013, Doctor of Philosophy, University of Toledo, College of Health Sciences.
Background: Changes in gait due to simultaneous performance of an attention-demanding dual task, such as walking while talking on the phone, may be caused by competing demands for attentional resources. As dual-tasking during gait is common, assessment of this paradigm is becoming highly important for mobility research. The objective of this study is to examine changes in gait and verbal response while performing a timed up and go test (TUG) with a concurrent cognitive task of counting backwards and a motor task of carrying a meal tray in order to understand the role of cognitive factors in gait-related balance control. Significance: Exploring the influence of attention processes on gait may represent an efficient way to- 1) improve the assessment of the falling risk among older adults, 2) help in promoting healthy senile life by focusing on cognitive development, and 3) improve post fall rehabilitation interventions by inclusion of cognitive tasks in addition to improving musculoskeletal impairments. Methods: Community dwelling healthy older adult volunteers participated in a timed get up and go (TUG) test while their movements were recorded by a 3D motion analysis system and force plates. Statistical Analysis: Multiple one-way repeated measures ANOVAs were performed for each of the kinematic and kinetic variables to examine differences across task conditions. Post hoc tests with Bonferroni corrections were conducted for significant main outcome variables. T tests were performed to assess cognitive skills. Results: The study successfully examined 15 healthy older adults between ages 65 and 88, scores of > 25 on MMSE test on their performance of dual task conditions in an attempt to get an insight into their gait and dynamic balance control system. We found that the most complex task situation of carrying the food tray and counting backward had the most adverse effect on gait performance in healthy older adults that resulted in 24% more time required to complete the TUG task, about 12% slowing of gait, 40% increase in double support time and a 10% decrease in the generation of medio-lateral ground reaction force, with conservation of cognitive task performance. However, balance control parameters like center of mass excursion and velocity in the frontal plane remained unaffected. Conclusions: Gait is an attention-demanding task, and a concurrent cognitive or motor task disrupts walking performance in community-dwelling older adults.
Charles Armstrong (Advisor)
Phillip Gribble (Committee Member)
Martin Rice (Committee Member)
Peggy Arnos (Committee Member)
128 p.
Biomechanics; Health Care; Health Sciences; Kinesiology; Physical Therapy
older adults; dual task; balance; secondary; motor and cognitive; motor; cognitive; concurrent; visual 3d; v3d; gait analysis; elderly; 3d motion analysis; 3 dimensional; TUG; timed up and go; fall prevention; camera system; counting backward

Recommended Citations

Citations

  • Mukherjee, A. (2013). Effect of Secondary Motor and Cognitive Tasks on Timed Up and Go Test in Older Adults [Doctoral dissertation, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1375713209

    APA Style (7th edition)

  • Mukherjee, Anuradha. Effect of Secondary Motor and Cognitive Tasks on Timed Up and Go Test in Older Adults. 2013. University of Toledo, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1375713209.

    MLA Style (8th edition)

  • Mukherjee, Anuradha. "Effect of Secondary Motor and Cognitive Tasks on Timed Up and Go Test in Older Adults." Doctoral dissertation, University of Toledo, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1375713209

    Chicago Manual of Style (17th edition)

toledo1375713209
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This open access ETD is published by University of Toledo and OhioLINK.