Table 4.
Risk factor measurements included in the model for predicting HSI and the number of times that they appear in the classifiers; those that appear in 4 or more classifier are highlighted in bold.
| Risk Factor | N° of Classifiers |
|---|---|
| Personal measurements | |
| Age | 1 |
| History of HSI last season | 3 |
| Maximal level of play achieved | 1 |
| Psychological measurements | |
| Sleep quality | 5 |
| Physical/emotional exhaustion | 2 |
| Reduced sense of accomplishment | 4 |
| Dynamic postural control measurements | |
| YBalance-Ant-Non Dominant Leg | 2 |
| Ybalance-PostMedial-Non Dominant Leg | 1 |
| YBalance-PostLateral-Non Dominant Leg | 1 |
| YBalance-BilaRatio-Anterior | 1 |
| YBalance-BilaRatio-PostLateral | 2 |
| Isometric hip abduction and adduction strength measurements | |
| PTISOM-Hadd-Dominant Leg | 1 |
| PTISOM-Hadd-Norm-Non Dominant Leg | 2 |
| PTISOM-Hadd-Norm-Dominant Leg | 1 |
| BilaRatio-PTISOM-Habd- Dominan Leg | 1 |
| Lower extremity joints range of motion measurements | |
| ROM-PHFKE-Dominant Leg | 4 |
| ROM-ADFKE-Non Dominant Leg | 1 |
| ROM-PHA-Dominant Leg | 1 |
| ROM-PHA-Non Dominant Leg | 1 |
| ROM-PHER-Dominant Leg | 1 |
| Core stability measurements | |
| CORE-USNF | 1 |
| Isokinetic knee flexion and extension strength measurements | |
| PT-QCON180-Dominant Leg | 1 |
| PT-QCON60-Dominant Leg | 1 |
| PT-QCON240-Non Dominant Leg | 2 |
| PT-QCON180-Dominant Leg | 1 |
| PT-HCON300-Non Dominant Leg | 1 |
| PT-HCON300-Dominant Leg | 2 |
| PT-HCON240-Non Dominant Leg | 1 |
| PT-QECC60-Non Dominant Leg | 2 |
| PT-HECC60-Non Dominant Leg | 1 |
| PT-HECC300-Dominant Leg | 1 |
| PT-HECC180-Non Dominant Leg | 1 |
| APT-HCON- Dominant Leg | 1 |
| APT-HECC180-Dorninant Leg | 4 |
| APT-HECC60-Dominant Leg | 1 |
| APT-HECC60-Non Dominant Leg | 2 |
| APT-QCON240-Non Dominant Leg | 1 |
| APT-QECC30-Non Dominant Leg | 3 |
| APT-QECC60-Dominant Leg | 2 |
| APT-QECC60°/s-Non Dominant Leg | 1 |
| 15-T-QECC60-Dominant Leg | 1 |
| 15-T-QECC30-Non Dominant Leg | 1 |
| 15-T-HECC60-Non Dominant Leg | 1 |
| 15-T-HECC180-Non Dominant Leg | 1 |
| 30-T-QECC180-Non Dominant Leg | 1 |
| 30-T-HECC30-Dominant Leg | 2 |
| 45-T-QECC180- Non Dominant Leg | 1 |
| 45-T-HECC60-Dominant Leg | 1 |
| 45-T-HECC180- Dominant Leg | 1 |
| UniRatio H/QCONV300-Non Dominant Leg | 1 |
| UniRatio H/QFUN60-Dominant Leg | 1 |
| 15-UniRatio-H30/Q240-Non Dominant Leg | 1 |
| 15-UniRatio H/QFUN180-Dominant Leg | 3 |
| 15-UniRatio H/QCONv60-Dominant Leg | 1 |
| 15-UniRatio H/QCONV240- Dominant Leg | 1 |
| 15-UnilRatio H/QFUNC180-Non Dominant Leg | 1 |
| 30-UniRatioH/QFUNC60-Dominant Leg | 1 |
| 30-UniRatio-H/QCON180-Dominant Leg | 1 |
| 45-UniRatioH/QFUNC60-Non Dominant Leg | 1 |
| 45-UniRatio-H/QFUNC180-Non Dominant Leg | 1 |
| 45-UniRatio-H/QCONV240-Dominant Leg | 1 |
| 45-UniRatio-H/QCONV300-Non-Dominant Leg | 2 |
| 45-UniRatio H/QCONV300-Dominant Leg | 2 |
| BilaRatio-QCON240 | 1 |
| BilaRatio-HCON180 | 1 |
| BilaRatio-HCON240 | 1 |
HSI: hamstring strain injury; Bila: bilateral; ISOM: Isometric; Add: adduction; Abd: abduction; ROM: range of motion; ADF: ankle dorsi-flexion; Q: quadriceps; H: hamstring; HF: hip flexion; HER: hip external rotation; Ant: anterior; Post: posterior; APT: angle of peak torque; ECC: eccentric; CON: concentric; PT: peak torque; T: torque; FUNC: functional; CONV: conventional; USNF: unstable sitting without feedback.