MRI assessment of muscle injury site by anatomical location in the Tokyo 2020 Olympic Games
| Anatomical site | Total | FCU ECU | Subscapularis | Teres major | Rectus abdominis | EAO | Latissimus dorsi | Gluteus maximus | External obturator | Adductor brevis | Gracilis | Rectus femoris | Vastus medialis muscle | Biceps femoris | Semimembranosus | Semitendinosus | Gastrocnemius | Sartorius | Soleus | Plantaris | ADM |
| Type a | 21 | 1 | 1 | 1 | 2 | 1 | 3 | 1 | 6 | 2 | 2 | 1 | |||||||||
| Type b | 14 | 1 | 1 | 1 | 2 | 6 | 1 | 2 | |||||||||||||
| Type c/incomplete tears | 21 | 1 | 1 | 12 | 2 | 1 | 1 | 1 | 1 | 1 | |||||||||||
| Type c/complete tears | 3 | 1 | 2 | ||||||||||||||||||
| Total | 59 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 5 | 1 | 24 | 7 | 1 | 3 | 1 | 2 | 2 | 1 |
Anatomical site of muscle injury was classified as type a: myofascial, type b: muscle-tendon junction, type c: muscle injury which extends into the tendon.
ADM, abductor digiti minimi; EAO, external abdominal oblique; ECU, extensor carpi ulnaris muscle; FCU, flexor carpi ulnaris muscle.