Electromyography-guided electrical stimulation therapy for patients with pusher behavior: A case series

Abstract

BACKGROUND: Pusher behavior (PB) is a posture disorder due to a subjective bias in verticality perception. However, muscle activity characteristics in this disorder and the effective treatments are not known. OBJECTIVE: To investigate electromyographic (EMG) activity and the effect of electrical stimulation (ES) in PB. METHODS: Two PB patients were enrolled. The EMG activity was measured over the upper and lower limb muscles on the non-paretic side, and over the trunk muscles on both sides during sitting. We used a modified ABA single-case design consisting of consecutive baseline, intervention, and follow-up, each phase lasting 2 d. During the intervention, together with conventional treatment, the patient received ES for 5 min/d on the muscle antagonist to the muscle where excessive activity was observed. PB was assessed before and after each phase using the scale for contraversive pushing and the Burke lateropulsion scale. Truncal balance was evaluated using the trunk control test. RESULTS: In both patients, electromyography of the non-paretic triceps brachii muscle revealed excessive activity. To inhibit the excessive activity, ES was applied to the non-paretic biceps muscle. All scores improved after the intervention and follow-up phases. CONCLUSION: ES based on EMG activity is therapeutic for PB.

Особливості Впливу Push-Синдрому На Процес Реабілітації Пацієнтів З Гострим Порушенням Мозкового Кровообігу

“…Для вимірювання було застосовано Burke Lateropulsion Scale та Trunk Control Test. Усі показники покращились одразу після втручання та на подальших етапах лікування [10].…”

Tilted 3D visual scenes – A new therapy approach for pusher syndrome

“…A variety of therapy methods have been developed, like the use of visual feedback for upright body adjustment (6)(7)(8)(9)(10), machine supported gait training (11,12), lateral sitting training on a tilted plane (13,14), trunk strengthening (15), or a balance-based intervention program (16). Further approaches used stimulation techniques, like galvanic vestibular stimulation (12,17,18), transcranial direct current stimulation (17,19) or electromyographic activity-based electrical stimulation (20).…”