OBJECTIVES: To study the association between performance on psychological tests of executive function and performance on lower extremity tasks with different attentional demands in a large sample of nondemented, older adults. DESIGN: Cross-sectional study. SETTING: Community-based. PARTICIPANTS: Nine hundred twenty-six persons aged 65 and older, without dementia, stroke, parkinsonism, visual impairment, or current treatment with neuroleptics, enrolled in a large epidemiological study. MEASUREMENTS: Trail Making Test (TMT) parts A and B and two performance-based measures of lower extremity function that require different executive/attentional-demanding skills: walking speed on a 4-m course at usual pace and walking speed on a 7-m obstacle course at fast pace. A difference score (Delta TMT), obtained by subtracting time to perform part A from time to perform part B of the TMT, was used as an indicator of executive function. Based on Delta TMT, subjects were divided into poor performance, intermediate performance, and good performance. RESULTS: After adjustment, no association between Delta TMT and 4-m course usual-pace walking speed was found. Participants with poor Delta TMT and with intermediate Delta TMT performance were more likely to be in the lowest tertile for 7-m obstacle course walking speed. CONCLUSION: In nondemented older persons, executive function is independently associated with tasks of lower extremity function that require high attentional demand.
OBJECTIVES: To study the association between performance on psychological tests of executive function and performance on lower extremity tasks with different attentional demands in a large sample of nondemented, older adults. DESIGN: Cross-sectional study. SETTING: Community-based. PARTICIPANTS: Nine hundred twenty-six persons aged 65 and older, without dementia, stroke, parkinsonism, visual impairment, or current treatment with neuroleptics, enrolled in a large epidemiological study. MEASUREMENTS: Trail Making Test (TMT) parts A and B and two performance-based measures of lower extremity function that require different executive/attentional-demanding skills: walking speed on a 4-m course at usual pace and walking speed on a 7-m obstacle course at fast pace. A difference score (Delta TMT), obtained by subtracting time to perform part A from time to perform part B of the TMT, was used as an indicator of executive function. Based on Delta TMT, subjects were divided into poor performance, intermediate performance, and good performance. RESULTS: After adjustment, no association between Delta TMT and 4-m course usual-pace walking speed was found. Participants with poor Delta TMT and with intermediate Delta TMT performance were more likely to be in the lowest tertile for 7-m obstacle course walking speed. CONCLUSION: In nondemented older persons, executive function is independently associated with tasks of lower extremity function that require high attentional demand.
Authors: Olivier Beauchet; Cédric Annweiler; Michele L Callisaya; Anne-Marie De Cock; Jorunn L Helbostad; Reto W Kressig; Velandai Srikanth; Jean-Paul Steinmetz; Helena M Blumen; Joe Verghese; Gilles Allali Journal: J Am Med Dir Assoc Date: 2016-02-04 Impact factor: 4.669
Authors: Paulo H M Chaves; Michelle C Carlson; Luigi Ferrucci; Jack M Guralnik; Richard Semba; Linda P Fried Journal: J Am Geriatr Soc Date: 2006-09 Impact factor: 5.562
Authors: Rodolfo Savica; Alexandra M V Wennberg; Clinton Hagen; Kelly Edwards; Rosebud O Roberts; John H Hollman; David S Knopman; Bradley F Boeve; Mary M Machulda; Ronald C Petersen; Michelle M Mielke Journal: J Alzheimers Dis Date: 2017 Impact factor: 4.472
Authors: Eric G James; Jeffrey M Hausdorff; Suzanne G Leveille; Thomas Travison; Jonathan F Bean Journal: Neurosci Lett Date: 2020-05-24 Impact factor: 3.046
Authors: Elizabeth L Stegemöller; Jonathan P Wilson; Audrey Hazamy; Mack C Shelley; Michael S Okun; Lori J P Altmann; Chris J Hass Journal: Phys Ther Date: 2014-02-20