Definition of workload variables
| Variable | Definition |
| Total distance | Total covered (m): this includes walking, jogging, fast running and sprinting. |
| Low-intensity distance | Total distance covered (m) below 14.4 km/hour. |
| High-speed running distance | Total distance covered (m) between 19.8 km/hour and 25.2 km/hour. |
| Sprint distance | Total distance covered (m) over 25.2 km/hour. |
| Accelerations | An increase in GPS speed data for at least half a second with maximum acceleration in the period at least 0.5 m/s/s. |
| Decelerations | A decrease in GPS speed data for at least half a second with maximum deceleration in the period at least 0.5 m/s/s. |
GPS, global positioning system.