actions of muscle & their common injuries

1. Joint muscles their actions &
common injuries
By- kajal sansoya

2. SHOULDER
Flexors- pectoralis major, deltoid(ant), biceps
brachii, coracobrachialis
Extensors- latissimus dorsi, teres major, pectoralis
major, deltoid( post), triceps brachii
Abductors- supraspinatus, deltoid( middle)
Adductors- coracobrachialis, pectoralis major,
latissimus dorsi, teres major.
Medial rotators- subscapularis, teres major,
latissimus dorsi, pectoralis major, deltoid(ant)
Lateral rotators- teres minor, infraspinatus,
deltoid(post)

3. common sports injuries at shoulder
joint
Rotator cuff tear- javelin throwers, swimmers,
volleyball players, baseball players.
Glenohumeral – gymnasts, weight lifters,
ballers
Genohumeral dislocation – boxers, hockey
players.

4. ELBOW
Flexors- biceps brachii, brachialis,
brachioradialis, pronator teres.
Extensors- triceps brachii, anoconeus.
Pronators- pronators teres, pronators
quadratus.
Supinators- supinators, biceps brachii.

5. Common injuries at elbow joint
Medial epicondylitis- golf elbow
Lateral epicondylitis – tennis elbow
Valgus extension- javelin throwers

6. WRIST
Flexors- FCR, FCU, PL, FDS, FDP, FPL
Extensors- ECR, ECRL, ECU, ED, EDM,EPL,EPB,
Extensors indicis
Radial deviation- FCR, ECRL, ECRB, Abd.PL,
EPL, ECB
Ulnar deviation- ECU, FCU

7. FINGERS
Flexors- FDP, FDS, FDMB
Extensors- EDM, ED, EI, lumbraicals
Abductors- adb.DM, opponensDM, dorsal
interossei
Adductors- palmaris interossei.

8. THUMB
Flexors- FPL, FPB
Extensors- EPL, EPB, abd.PL
Abductors- APL, APB
Adductors- AP
Opposition- opponens pollicis

9. Common sports injuries at wrist, hand
joint
Tendon ligament- volleyball players,
basktetball players, boxers.
Ulnar tunnel syndrome- cyclist
Carpel-tunnel syndrome- rock-climbers, tennis
players, golf players

10. HIP
Flexors- psoas major, iliacus, rectus femoris,
sartorius, pectineus
Extensors- gluteus maximus, semitendionsus,
semimembranosus, biceps femoris
Abductors- gluteus maximus, gluteus medius,
gluteus minimus, sartorious, tensor fasciae
latae, piriformis
Adductors- adductors longus, adductor
magnus, adductor brevis, gracilis, pectineus

11. Medial rotators- gluteus medius, gluteus
minimus, TFL
Lateral rotators- gluteus maximus, piriformis,
gemellus superior, gemellus inferior, obturator
internus, obturator externus, sartorius.

12. Common injuries at hip joint & thigh
joint
Quadriceps & hamstring injuries- runners
Adductor injuries- horse riders
Fracture of pelvis/ hip dislocation- footballers

13. KNEE
Flexors- semitendinosus, semimembranosus,
biceps femoris, gastrocnemius, gracilis,
sartorius, plantaris popliteus.
Extensors- rectus femoris, vastus medialis,
vastus lateralis, vastus intermedius, TFL
Medial rotators- semitendinosus,
semimembranous, sartorius, gracilis, popliteus
Lateral rotators- biceps femoris.

14. Common injuries at knee joint & leg
Collateral ligament injuries- footballers
Meniscal injuries- footballers, kabaddi players
Cruciate ligament injuries- long jumpers
Knee dislocation- kick boxers
IT band syndrome- long and high jumpers
Compartment syndrome- runners and cyclist

15. ANKLE
Dorsiflexors- tibialis anterior, EDL, EHL, PT
Plantar flexors- gastrocnemius, soleus
plantaris, pernoneus longus, tibialis posterior,
FDTL, FHL, PB
Invertors- tibialis anterior, tibialis posterior
Evertors- pernoneus longus, pernoneus brevis,
pernoneus tertius.

16. TOES
Flexors- FDL, flexors digitorum accessorius,
FDB, FHL, FHB, FDMB, interossei, lumbricals,
abductors halliucis
Extensors- EHL, EDL, EDB, lumbraicals,
interossei
Abductors- AH, ADM, dorsal interossei.
Adductors- AH, plantar interossei.

17. Common injuries at ankle & foot injuries
Sprain- basketball players, footballers players
Achilles tendonitis & bursitis- runners
Stress fracture- walker
Metatarasalgia- runners, footballers
TA rupture-runners,

18. THANK YOU
HAPPY READING 