Strengths and Limitations
This study has important strengths. Compared with the previous study,This study has several limitations. First, the study population was limited by the eligibility criteria used. Second, compared with the control group, participants who were assigned to exercise intervention groups might have anticipated the benefits of exercise and may have introduced bias into the results. Third, the follow-up period was relatively short, so we did not explore a longer-term treatment effect. Finally, the study was time-consuming and required extensive human resources; and future studies should consider how to improve participants’ adherence within the limited time and human resources so as to better promote clinical application.