Effects of bilateral training on motor function, amount of activity and activity intensity measured with an accelerometer of patients with stroke

[Purpose] This study investigated the recovery of arm function and the functional use of the affected limb in real life of stroke patients after bilateral arm training. [Subjects] Twenty patients with stroke were randomly allocated to the BT (bilateral training group, n=10) and UT (unilateral training group, n=10) groups. [Methods] The BT group performed functional tasks with both hand symmetrically, the UT group performed tasks with only the affected hand for 30 minutes a session 5 times a week over 6 weeks. Before and after the intervention, accelerometers (Actisleep), functional independence measure (FIM) and manual function test (MFT) were used to assess subjects' abilities. [Results] The BT group showed a significant improvement in FIM total score, motor subtotal score and MFT score of affected side compared to the UT group. The BT group showed a more quantitative increase in the amount of activity of the affected side than the UT group. Regarding activity intensity, the BT group showed a decrease in the sedentary level and an increase of the moderate level on the affected side compared to the UT group. [Conclusion] We found that programs tailored to the characteristics of stroke patients and continuous monitoring of physical activity using an accelerometer minimized possible future disability and improved the patients' quality of life.