Abstract:
This study evaluated usability of the PAI Health application in 10 cardiac
rehabilitation patients (attending rehabilitation ³3 days/week). Following an initial maximal
exercise test, participants wore a PA monitor for 14 days continuously and completed a
19-item usability questionnaire to describe satisfaction with the application. Participants
attended a focus group visit to discuss their experiences, allowing participants to give
open-ended feedback. Participant VO2max values averaged 22.74±5.33 ml/kg/min and
exercise volumes of 207.4±59.2 minutes/week. Overarching themes emerged describing
usability of the PAI Health application for cardiac patients. Theme 1: Participants were
comfortable wearing the monitor but had issues interpreting the application. Theme 2:
Participants were encouraged to perform more PA. Theme 3: The HR monitor was
inaccurate. Theme 4: Participants wanted more focus on other aspects of the
application/more compatibility with other applications. Generally, the PAI Health
application was received favorably. However, exercise volume did not relate to increased
VO2max values.
