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Effects of intermittent theta burst stimulation on spasticity after stroke

 Dae Hyun Kim  ;  Ji Cheol Shin  ;  Seungsoo Jung  ;  Tae-Min Jung  ;  Deog Young Kim 
 NEUROREPORT, Vol.26(10) : 561-566, 2015 
Journal Title
Issue Date
Adult ; Aged ; Aged, 80 and over ; Analysis of Variance ; Biomechanical Phenomena/physiology ; Cross-Over Studies ; Double-Blind Method ; Electromyography ; Evoked Potentials, Motor/physiology* ; Female ; Forearm/physiopathology ; Hemiplegia/etiology* ; Hemiplegia/therapy* ; Humans ; Male ; Middle Aged ; Muscle, Skeletal/innervation ; Severity of Illness Index ; Stroke/complications* ; Transcranial Magnetic Stimulation/methods* ; Treatment Outcome
hemiplegia ; intermittent theta burst stimulation muscle spasticity ; stroke ; transcranial magnetic stimulation
Spasticity is a common cause of long-term disability in poststroke hemiplegic patients. We investigated whether intermittent theta burst stimulation (iTBS) could reduce upper-limb spasticity after a stroke. Fifteen hemiplegic stroke patients were recruited for a double-blind sham-controlled cross-over design study. A single session of iTBS or sham stimulation was delivered on the motor hotspot of the affected flexor carpi radialis muscle in a random and counterbalanced order with a 1-week interval. Modified Ashworth scale (MAS), modified Tardieu scale (MTS), H-wave/M-wave amplitude ratio, peak torque (PT), peak torque angle (PTA), work of affected wrist flexor, and rectified integrated electromyographic activity of the flexor carpi radialis muscle were measured before, immediately after, 30 min after, and 1 week after iTBS or sham stimulation. Repeated-measures analysis of variance showed a significant interaction between time and intervention for the MAS, MTS, PT, PTA, and rectified integrated electromyographic activity (P<0.05), indicating that these parameters were significantly improved by iTBS compared with sham stimulation. However, the H-wave/M-wave amplitude ratio and work were not affected. MAS and MTS significantly improved for at least 30 min after iTBS, but the other parameters only improved immediately after iTBS (P<0.05). In conclusion, iTBS on the affected hemisphere may help to reduce poststroke spasticity transiently.
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1. College of Medicine (의과대학) > Dept. of Rehabilitation Medicine (재활의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Physiology (생리학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dae Hyun(김대현)
Kim, Deog Young(김덕용) ORCID logo https://orcid.org/0000-0001-7622-6311
Shin, Ji Cheol(신지철) ORCID logo https://orcid.org/0000-0002-1133-1361
Chung, Seung Soo(정승수) ORCID logo https://orcid.org/0000-0002-3119-9628
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