The comprehensive musculoskeletal examination and evaluation criteria for each test
| Type of testing | Tests | Evaluation criteria* | |
|---|---|---|---|
| Hamstring and quadriceps muscle | Isokinetic muscle strength† | Concentric knee flexion and extension at 60°/s and 300°/s | Normal Minor abnormal: ±1SD Major abnormal: ±2SD |
| Eccentric knee extension 60°/s | Normal Minor abnormal: ±1SD Major abnormal: ±2SD | ||
| Flexibility | Hamstring AROM and PROM | Normal Abnormal: ±1SD | |
| Hip and groin examination | Pain provocation tests | Hip adduction squeeze test at 0° and 45° | Normal Abnormal: pain |
| Impingement test | Normal Abnormal: Pain | ||
| FABER test | Normal Abnormal: Pain | ||
| Joint ROM and flexibility | Hip internal rotation at 90° | Normal Abnormal: ±1SD | |
| Hip external rotation at 90° | Normal Abnormal: ±1SD | ||
| Hip internal rotation in prone position | Normal Abnormal: ±1SD | ||
| Bent knee fall out | Normal Abnormal: ±1SD | ||
| ROM hip abduction side lying | Normal Abnormal: ±1SD | ||
| Muscle strength | Eccentric hip adduction | Normal Abnormal: ±1SD | |
| Eccentric hip abduction | Normal Abnormal: ±1SD | ||
| Lower leg and ankle | ROM and flexibility | Ankle dorsiflexion, lunge forward to a wall | Normal/abnormal |
| Functional movement test | Nine-test screening battery‡ | Normal: ≤22 of 33 Abnormal: ≥21 of 33 |
Evaluation criteria were based on normative data on Qatar Stars League (QSL) players from previous years. Tests were considered abnormal if more than one SD from the mean.
†The data from the isokinetic muscle strength tests were normalised to body weight.
‡ The Nine-test screening battery was considered abnormal if the total score was below 67% of the maximum score.24 ,26
AROM, active range of motion; FABER, flexion, abduction, external rotation; PROM, passive range of motion; ROM, range of motion.