Article Text

Difficulties with control arms in repetitive magnetic stimulation studies
  1. Robert Caslake
  1. Correspondence to Dr Robert Caslake, Division of Applied Health Sciences, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen AB25 2ZD, UK; rcaslake{at}

Statistics from

In their paper Arri and colleagues1 describe a small, randomised, crossover study that appears to demonstrate dramatic, if temporary, improvement in camptocormia in people with Parkinson's disease (PD) as a result of repetitive trans-spinal magnetic stimulation (rTSMS). While it is hard to argue that this treatment does not bear further investigation, it is not the effect of the treatment, but the lack of effect of the sham intervention that bears further discussion.

One of the factors that has made trials in repetitive magnetic stimulation, usually applied transcranially (rTMS), difficult …

View Full Text

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Linked Articles