You mean, they claim to have dropped accelerometers due to the load on patients. The evidence from TMG minutes suggests that they actually dropped actigraphy because a Dutch trial had shown it was “not useful” – i.e unlikely to produce the desired positive result. (Newcomers, see @Lucibee ’s blog: Whatever Happened to Actigraphy; https://lucibee.wordpress.com/2018/05/09/pace-trial-whatever-happened-to-actigraphy/) But I completely agree with your point. For most of the 27 years that I’ve been unwell there is no way that I could have filled in all the questionnaires and provided all the required feedback. But even at my most severe I would have been happy to wear an accelerometer for as long as necessary. The burden excuse strikes me as a blatant lie. I think @JohnTheJack could make a strong case that QMUL’s response to his request has been vexatious.