Safety and Motivation
No significant harms related to the study were reported or observed over the
course of the study. For participants in the FitMi therapy group, no significant
change was found between baseline and end-of-therapy for MAS or VAP scores
(paired Participants interacted with the FitMi software for a median of 47% of the
21 days of the intervention period (range = 23%-100%). FitMi participants
interacted with the system for 5.4 ± 4.1 hours. Only 2 participants completed or
exceeded the recommended 9 hours of interaction time. Due to technical issues
with battery life, only 4 out of 13 sensorized folders provided to participants
in the conventional therapy group were returned with recoverable data. These 4
participants interacted with their folders for 41%, 73%, 45%, and 100% of the
21 days of the intervention.Of the 14 participants in the FitMi group, 9 out of 14 (64%) completed the
theoretical target dose of at least 2700 repetitions (as defined in the Methods)
over 3 weeks of exercise, with 7 participants completing more than 3 times this
amount (We tested whether less impaired participants achieved more repetitions with
FitMi. To do this, we ranked participants by baseline UEFM score and then split
them into evenly sized groups (n = 7) thus creating lower and higher UEFM groups
defined by a UEFM cutoff of 40. Comparing total repetitions between groups
(4427 ± 3648 [832, 8694] vs 15 890 ± 13 412 [2565, 42 256], respectively)
revealed a significantly greater amount of exercise in the higher UEFM group
(unpaired 