Table 1
Description of the variables studied.
| Role | Variable | Categories | Description |
| Independent | Court design | Wide (W) | Court of 6 metres wide by 4.5 metres deep. |
| Narrow (N) | Court of 4.5 metres wide by 6 metres deep. | ||
| Dependent | Number of total contacts produced in each rally | C | Number of contacts made in each rally between the two teams. |
| Dependent | Possessions made per point | P | Total number of ball possessions per team executed in each rally. |
| Dependent | Game complexes completed per point | K | Frequency at which the maximum number of contacts (three) was used up in each possession per rally. |
| Dependent | Number of overhead passes in the first action per point | O | Number of defensive actions carried out with overhead pass on the first touch in each rally. |
| Covariate | Period | Per | Allocation of the period in which each set is played in relation to the intervention (match one or match two). |
| Covariate | Sequence | Seq | Order of allocation of the courts on which the sets were played (WN or NW). |
| Possible confounding variable | Score difference | SD | Difference in the score between the two teams at the end of each set played. |
| WN: wide-narrow; NW: narrow-wide. | |||
