text: gave them advice for follow-up. Some participants said that when the 
  physiotherapist conducted the exercises or ran/walked together with 
  them, it made them increase their exercise intensity. One participant 
  described this as follows: 
  
  disabilities participating in an indoor group intervention (16). 
  However, the perceived interlinking of improved sensorimotor 
  functions and the ease of and efﬁciency in high-intensity 
  walking/running have not been reported previously. It is likely 
  that the detailed exercises prompted activations of the CNS 
  and musculoskeletal systems, which are prerequisites for high- 
  intensity walking and running (33). 
  in such 
  systems commonly occur due to CNS lesions or secondary 
  inactivity, and function can improve with increased use (18). 
  Our results support the value of integrating such speciﬁcity to 
  optimize the capability to train at high intensity, even in 
  individuals with low EDSS scores. 
  
  Impairments 
  
  However, one participant described an incident where the 
  interaction with the physiotherapists was not perceived as helpful: 
  
  When I get tired, it gets difﬁcult. I can only do one thing at a 
  time, and then these physiotherapists came running, talking 
  and trying to motivate at the same time. I got very tired, and 
  my leg would not follow my commands to run. (ID7, EDSS: 3.5) 