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Updated: Jun 19, 2026

TMS: Using the Theta-Burst Protocol to Explore Mechanism of Plasticity in Individuals with Fragile X Syndrome and Autism
Published on: December 28, 2010
Effects of intermittent theta burst stimulation on spasticity in patients with multiple sclerosis
F Mori1, C Codecà, H Kusayanagi
1Dipartimento di Neuroscienze, Clinica Neurologica, Università Tor Vergata, Rome, Italy. francesco808@virgilio.it
Background And Purpose:
Spasticity is a common disorder and a major cause of long-term disability in patients with multiple sclerosis (MS). Our aim was to evaluate whether a recently developed repetitive transcranial magnetic stimulation protocol, the intermittent theta burst stimulation (iTBS) is effective in modulating lower limb spasticity in MS patients.
Methods:
Twenty MS patients were pseudorandomized to undergo a 2-week daily sessions of real or sham iTBS protocol. The H/M amplitude ratio of the Soleus H reflex, a reliable neurophysiological index of spinal excitability and the Modified Ashworth Scale (MAS) for spasticity were evaluated by blinded raters before and after the stimulation protocols.
Results:
Patients receiving real iTBS showed a significant reduction of H/M amplitude ratio and MAS scores 1 week after the stimulation and persisting up to 2 weeks after the end of stimulation protocol. There were no significant effects for sham stimulation.
Conclusions:
These results show that iTBS, a safe, non-invasive, well-tolerated and feasible protocol, is a promising tool for the treatment of spasticity in MS.
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