Authors' Response to Peer-Review Reports: https://med.jmirx.org/2021/3/e33179/
Published Article: https://med.jmirx.org/2021/3/e21906/
This is a peer-review report submitted for the paper “Use of Smartphone Apps for Improving Physical Function Capacity in Cardiac Patient Rehabilitation: Systematic Review”.
Review Round 1
This is a systematic review  investigating the utilization of smartphone apps for improving physical function capacity in cardiac rehabilitation (CR). Please find below my comments/suggestions.
1. CR interventions seem to be quite different between studies, making future comparisons inappropriate (ie, for CR programs including exercise programs, I would expect improvements in cardiorespiratory fitness (CRF), while for programs including diet, this outcome might not change).
2. It is not clear how authors selected the papers. This process makes it difficult to understand the results, as the outcomes and types of interventions are quite different between studies. As the main outcome in CR is CRF, I would suggest making it your primary outcome for selection of the studies.
1. I would suggest including a PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) flow diagram for the study selection process. This is available at http://prisma-statement.org/prismastatement/flowdiagram.aspx.
2. Tables 2 and 3 are not clear.
Conflicts of Interest
|CR: cardiac rehabilitation|
|CRF: cardiorespiratory fitness|
|PRISMA: Preferred Reporting Items for Systematic Reviews and Meta-Analyses|
Edited by E Meinert; This is a non–peer-reviewed article. submitted 26.08.21; accepted 26.08.21; published 17.09.21Copyright
©Karla Goessler. Originally published in JMIRx Med (https://med.jmirx.org), 17.09.2021.
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