Data extraction elements
| Topic | Items |
| Articles | First authors and publication year. |
| Study details | Study designs and study locations (countries). |
| Subjects | Mean age, gender, stage of CKD. |
| Methods | Detail of interventions: exercise frequency, exercise intensity, exercise type, exercise time and intervention duration. Detail of outcome assessment. |
| Results | Results of physical function tests in the CKD group and healthy control group. Physical function test results at baseline and endpoint for participants in the Intervention and control groups. |
| Others | Declared conflicts of interest. Financial support. |
CKD, chronic kidney disease.