Table 4

Return to play (RTP) criteria with relative assessment methods reaching consensus in round 3

RTP criteriaMEANSDCoefficient of variationPercentage agreement
1Perform maximal sprints4.940.244.77100.00
  using wearable GPS technology4.720.5712.1794.44
  based on the player's self-reported maximal perceived effort4.330.6915.8388.89
  on 10 and 30 meters timed acceleration tests4.170.5112.3594.44
2Achieve maximal linear speed4.780.438.95100.00
  using wearable GPS technology4.720.469.76100.00
  based on the player's self-reported maximal perceived effort4.220.5512.9994.44
3Complete at least one football-specific field testing session at maximal
performance and under fatigue conditions
4Perform a progressive running plan with running performance eventually matching preinjury levels4.780.438.95100.00
5Player’s self-reported feeling of confidence and readiness to RTP4.720.469.76100.00
6Full hamstring muscle strength as compared with the uninjured side and/or to preinjury benchmark values4.440.5111.50100.00
7Reach GPS-based targets of external load, based on player-specific or position-specific match markers, which include number of sprints, accelerations, decelerations, changes of direction, maximal speed, high-speed running distance4.280.6715.6488.89
8Recovery of full aerobic and anaerobic fitness performance4.280.7517.5883.33
9No pain in the muscle4.281.2729.7983.33
  on functional activities on the field and in particular during maximal sprinting4.720.9620.2994.44
  on maximal voluntary contraction4.500.9921.8994.44
  on full range flexibility4.330.9722.3994.44
10Full muscle flexibility, equal to the uninjured side and/or to preinjury benchmark values4.220.4310.13100.00
  with AKE (active knee extension)4.330.5913.7194.44
  with passive SLR (straight leg raise)4.170.6214.8488.89
  with active SLR (straight leg raise)4.060.8721.5377.78
11Complete at least two full trainings with the team prior to be available for match selection4.170.7918.8688.89
12Good lumbopelvic motor control4.000.4912.1388.89