Abstract. [Purpose] Weakening of trunk muscles in stroke patients hinders functional ability, safety and balance.
To confirm whether strengthening trunk muscles could facilitate rehabilitation of stroke patients, we investigated
the effectiveness of sling exercise therapy (SET) using closed kinetic chain exercises to activate trunk muscles and
improve balance in stroke patients. [Subjects and Methods] Twenty stroke patients with chronic hemiplegia were
equally divided into 2 groups, a SET group and a control group that performed regular exercises on a mat with the
assistance of a table. Patients in both groups exercised for 30 min, three times per week for 4 weeks.
Trunk muscle activity was measured using surface electromyography, whereas balance was measured using the Berg Balance
Scale, Frailty and Injuries Cooperative Studies of Intervention Technique, Timed Up & Go test, and BioRescue
before and after the 4-week experimental period. [Results] Trunk muscle activity and balance before and after intervention in both groups were significantly different. However, no significant differences were observed between
the 2 groups. [Conclusion] Although SET was not more effective than regular exercise, significant improvement was
observed before and after SET. Therefore, SET can be considered effective in strengthening trunk muscles in stroke
patients with chronic hemiplegia.
Key words: Chronic stroke patients, Sling exercise therapy, Trunk muscles