| Objective: To analyze the effect of cognitive load on writing and drawing fluency in patients with cerebral small vessel disease(CSVD).Methods: From May 2018 to September 2019,116 cases of CSVD patients were enrolled as CSVD group,and 89 cases of age-and gender-matched healthy people were enrolled as control group.Using Jamar smart grip tester to test upper limb grip strength of the subjects.The Lafayette key nail plate was used to test upper limb fine movement of the subjects.A Bluetooth smart pen was used to perform the dual task of writing and drawing tests of the subjects,the first task is a writing and drawing test,and the second task is a listening cognitive test,single task,dual task test were performed,respectively.Results: There was no significant difference in upper limb grip strength and nail plate test time between control group and CSVD group(P > 0.05).The writing time of the dual task in CSVD group was significantly longer than that of the single task [(50.86 ± 10.49)s vs(42.62 ± 6.51)s,P = 0.000].The writing time of the dual task in CSVD group was significantly longer than that in control group [(50.86 ± 10.49)s vs(41.48 ± 8.26)s,P = 0.000].In CSVD group,the number of correct listening in writing and drawing was significantly reduced compared with that in single task [(12.60 ± 2.46)vs(14.73 ± 2.28),P = 0.013;(11.31 ± 1.92)vs(14.73 ± 2.28),P = 0.000].The number of correct writing and drawing listening in CSVD group was significantly reduced compared with those in control group [(12.60 ± 2.46)vs(14.28 ± 2.07),P = 0.041;(11.31 ± 1.92)vs(14.69 ± 3.45),P = 0.000].Compared with control group,the DTC of the dual task writing time and the number of correct drawing listening in CSVD group increased significantly(P <0.01).Conclusion: Under cognitive load,the writing fluency of upper limb in patients with CSVD are easily affected.It is easier to find the upper limb motor dysfunction in CSVD patients under dual task conditions.Objective: To analyze the gait characteristics of dual task walking(DTW)in patients with cerebral small vessel disease(CSVD).Methods: From February to July 2019,46 cases of white matter lesion patients were enrolled as CSVD group,and 22 cases of age-and gender-matched healthy elderly people were enrolled as control group.The portable gait analyzer IDEEA(Mini Sun LLC,USA)was used to single walking and DTW test.The gait parameters such as stride time,stride length,stride speed,and stride frequency were recorded,and the stride time variation coefficient(CV),gait asymmetry(GA),phase coordination index(PCI)were calculated.Results: Compared with single walking,DTW stride length and stride speed decreased in control group,DTW stride time prolonged,stride length shortened,stride speed decreased,stride frequency slowed down,CV,GA,PCI increased significantly in CSVD group(P < 0.01).When single walking,there was no significant difference in stride time,stride frequency and CV between two groups(P > 0.05),stride length and stride speed in CSVD group were significantly lower than those in control group,GA and PCI were significantly higher than those in control group(P < 0.05,P < 0.01).At DTW,stride length,stride speed,and stride frequency in CSVD group were significantly lower than those in control group,stride time was significantly longer than that in control group,CV,GA,PCI were significantly higher than those in control group(P < 0.05,P < 0.01).When DTW was performed in control group,the value of φ was close to the ideal value of 180 °,in CSVD group,the value of φ and the ideal value of 180 ° were more discrete.Conclusion: The CSVD patients are more likely to have gait disorder during DTW,and the stability,symmetry and coordination of gait are reduced.DTW can detect gait changes that are difficult to observe when single walking,and can better reflect the activities of daily living in patients with CSVD. |
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