Background: Stroke patients have weak trunk muscle strength due to brain injury, so a single type of exercise is advised for restoring functionality. However, even after intervention, the problem still lies and it is suggested that another intervention method should be applied with exercise in order to deal with such problem.
Objectives: To Investigate the effect of bridge exercise combined with functional electrical stimulation (FES) on trunk muscle activity and balance in stroke patients.
Design: Randomized controlled trial.
Methods: From July to August 2020, twenty stroke patients was sampled, ten patients who mediated bridge exercises combined with functional electrical stimulation were assigned to experiment group I, and ten patients who mediated general bridge exercises were assigned to experiment groupⅡ. For the pre-test, using surface EMG were measured paralyzed rectus abdominis, erector spinae, transverse abdominis/internal oblique muscle activity, and using trunk impairment scale were measured balance. In order to find out immediate effect after intervention, post-test was measured immediately same way pre-test.
Results: Change in balance didn’t show significant difference within and between groups, but muscle activity of trunk was significant difference rectus abdominis and erector spinae within groups I (P<.01), also between groups was significant difference (P<.05).
Conclusion: Bridge exercise combined with FES could improve trunk function more effectively than general bridge exercise due to physiological effect of functional electrical stimulation.

INTRODUCTION
SUBJECTS AND METHODS
    Subjects
    Outcome Measures
    Interventions
    Data and Statistical Analysis
RESULTS
    Comparison of intra-group changes in trunk muscleactivity and balance in experimental groupⅠ
    Comparison of intra-group changes in trunk muscleactivity and balance in experimental groupⅡ
    Comparison of inter-group changes in trunk muscleactivity and balance
DISCUSSION
CONCLUSION
REFERENCES

• Jeongil Kang(Department of Physical Therapy, Sehan University)
• Daekeun Jeong(Department of Physical Therapy, Sehan University)
• Sinhaeng Heo(Department of Physical Therapy, Sehan University) Correspondence