Table 5 The regression equations and cross-validation in distance covered and number of accelerations and decelerations in different sections.
From: Integrating video tracking and GPS to quantify accelerations and decelerations in elite soccer
Number of acceleration and deceleration | R2 | RMSE | MAE | Distance covered | R2 | RMSE | MAE |
|---|---|---|---|---|---|---|---|
Acceleration 0/1 m/s2: Y = 1.07x + 117.2 | 0.92 (0.89–0.93) | 70.01 (64.33–76.88) | 63.34 (58.85–69.11) | Acceleration 0/1 m/s2: Y = 0.9x + 29.02 | 0.95 (0.93–0.96) | .60.61 (56.01–63.88) | 45.71 (43.61–49.29) |
Acceleration 1/2 m/s2: Y = 0.99x + 14.95 | 0.88 (0.84–0.92) | 20.71 (18.72–22.08) | 15.82 (14.38–17.34) | Acceleration 1/2 m/s2: Y = 0.95x + 29.33 | 0.93 (0.91–0.94) | 68.15 (66.16 (70.15) | 52.70 (50.49–54–41) |
Acceleration 2/3 m/s2: Y = 0.88x + 7.75 | 0.89 (0.85–0.95) | 8.51 (7.87–9.01) | 6.51 (6.18–7.09) | Acceleration 2/3 m/s2: Y = 0.89x + 43.83 | 0.91 (0.85–0.94) | 61.92 (58.52–64.17) | 50.47 (47.52–52.35) |
Acceleration >3 m/s2: Y = 0.85x + 3.97 | 0.85 (0.76–0.93) | 5.65 (5.26–6.36) | 4.35 (3.98–4.71) | Acceleration >3 m/s2: Y = 0.84x + 21.26 | 0.0.85 (0.80–0.90) | 45.55 (42.51–47.32) | 35.25 (33.37–37.38) |
Deceleration 0/− 1 m/s2: Y = 1.01x + 164.48 | 0.91 (0.87–0.93 | 69.78 (62.97–75.31) | 64.04 (58.94–70.10) | Deceleration 0/− 1 m/s2: Y = .90x + 42.296 | 0.94 (0.92–96) | 59.49 (56.12–63.18) | 47.62 (42.89–48.87) |
Deceleration − 1/− 2 m/s2: Y = 0.99x + 32.29 | 0.85 (0.80–0.90) | 23.30 (20.59–26.18) | 18.06 (16.56–20.03) | Deceleration − 1/− 2 m/s2: Y = 0.91x + 40.10 | 0.91 (0.93–0.89) | 53.94 (49.92– 55.97) | 41.83 (39.05–43.15) |
Deceleration − 2/− 3 m/s2: Y = 0.88x + 9.47 | 0.87 (0.82–90) | 8.59 (8.13–9.21) | 6.71 (6.42–7.24) | Deceleration − 2/− 3 m/s2: Y = 0.89x + 9.93 | 0.87 (0.82–0.90) | 8.51 (8.28–8.88) | 6.58 (6.38–6.77) |
Deceleration >− 3 m/s2: Y = 0.90x + 5.36 | 0.87 (0.81–0.90) | 5.65 (5.10–6.01) | 4.42 (4.01–4.82) | Deceleration >− 3 m/s2: Y = 0.88x + 28.66 | 0.89 (0.83–0.94) | 28.65 (27.22–29.22) | 23.15 (21.91–23.73) |
