Risk of bias assessment criteria
| Criteria | Definition | Scoring | |||
|---|---|---|---|---|---|
| 0 | 1 | 2 | |||
| A | Peer reviewed | Study published in peer-reviewed journal | No | Yes | |
| B | Number of participants* | Number of participants included in study findings | <5 | 5–50 | >50 |
| C | Population defined | Age, gender, sport, participation level and experience stated | No | Partly | Yes |
| D | Training or competition load described | Training or competition undertaken during the study period is described | No | Partly | Yes |
| E | Response set on self-report measure described | Response set (eg, ‘right now’ or ‘in the past week including today’) is described | No | Yes | |
*Arbitrary cut-offs used to distinguish between case study, single cohort and larger/multiple cohort study designs.