In order to better understand and optimize the national physical fitness, this paper puts forward fitness data change feature extraction method based on mining, uses decision tree association rule mining algorithm collect in recent years, constructs database realize effective management, construct evaluation index. Finally, through experiments, it is confirmed that physique has high effectivene...

this study defines necessary data elements required for the research information system in the domain of health, and its level of accountability to national health research indicators from the experts' perspective is being explored.this qualitative study was conducted based on comparative approach using the focus group method. data were collected through 6 semi-structured group discussions held...