Departmental Bulletin Paper Exploring the factor on sensory motor function of upper limb associated with executive function in community-dwelling older adults

Hayashi, Hiroyuki  ,  Nakashima, Daiki  ,  Matsuoka, Hiroka  ,  Iwai, Midori  ,  Nakamura, Shugo  ,  Kubo, Ayumi  ,  Tomiyama, Naoki

78 ( 3 )  , pp.285 - 291 , 2016-08 , Nagoya University Graduate School of Medicine, School of Medicine
Exercise, such as cardiovascular fitness training, has been shown to have utility in improving executive function but is difficult for older adults with low mobility to perform. Accordingly, there is interest in the development of regimens other than high mobility exercises for older adults with low mobility. The aim of the present study was to evaluate the association between sensory motor function of the upper limb and executive function in community-dwelling older adults. A cross-sectional study was conducted in 57 right-handed, independent, community-dwelling older adults. Sensory motor function of upper limb, including range of motion, strength, sensation, finger dexterity, and comprehensive hand function was measured in both hands. Executive function was assessed using the Delta Trail Making Test. Multiple regression analysis indicated the finger dexterity of the non-dominant hand as independently associated with executive function (β = –0.414, P < 0.001). The findings of the present study may facilitate the development of exercise regimens for improving executive function that are more suitable for older adults with limited physical fitness levels. As this was a cross-sectional study, further studies are required to validate the efficacy of non-dominant finger dexterity training for improving executive function in older adults.

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