1. Muscle strength testing
For presentation

2. Muscle strength grading scale
5 full ROM against gravity and normal resistance
4 full ROM against gravity and some resistance
3 full ROM against gravity
2 full ROM with gravity removed
1 no motion, but slight contractility
0 no motion, no contractility

3. MUSCLE STRENGTH TESTING – UPPER EXTREMITY
Deltoid: C5 / axillary nerve
Elbow flexors (biceps): C6 / musculocutaneous nerve
Elbow extensors (triceps): C7 / radial nerve
Wrist extensors: C6 / radial nerve
Wrist flexors: C7 / median & ulnar nerves
Finger extensors: C7 / radial nerve
Finger flexors: C8 / median & ulnar nerve
Interossei: T1 / ulnar nerve

4. Deltoid (C5 / axillary nerve)

5. Elbow flexors - biceps (C6 / musculocutaneous nerve)

6. Elbow extensors - triceps (C7 / radial nerve)

7. Wrist extensors (C6 / radial nerve)

8. Wrist flexors (C7 / median & ulnar nerves)

9. Finger extensors (C7 / radial nerve)

10. Finger flexors (C8 / median & ulnar nerves)

11. Finger flexors (C8 / median & ulnar nerves)

12. Finger flexors – dynamometer (grip) (C8 / median & ulnar nerves)

13. Interossei – finger adductors (T1 / ulnar nerve)

14. Interossei – finger abductors (T1 / ulnar nerve)

15. Muscle strength testing grading scale
5 full ROM against gravity and normal resistance
4 full ROM against gravity and some resistance
3 full ROM against gravity
2 full ROM with gravity removed
1 no motion, but slight contractility
0 no motion, no contractility

16. MUSCLE STRENGTH TESTING – LOWER EXTREMITY
Psoas: L1,2,3 / branches of lumbar plexus
Quadriceps: L2-4 / femoral nerve
Adductors: L2-4 / obturator nerve
Anterior tibialis: L4 / deep peroneal nerve
Dorsiflexiors: L5 / deep peroneal nerve
EHL: L5 / deep peroneal nerve
Plantarflexors: S1 / tibial nerve
Evertors: S1 / superficial peroneal nerve
Gluteus medius: L5 / superior gluteal nerve
Gluteus maximus: S1 / inferior gluteal nerve

17. Psoas (L1,2,3 / branches of lumbar plexus)

18. Quadriceps – hip flexion (L2-4 / femoral nerve)

19. Quadriceps – knee extension (L2-4 /femoral nerve)

20. Adductors (L2-4 / obturator nerve)

21. Anterior tibialis (dorsiflexion & inversion) (L4 / peroneal nerve – deep branch)

22. Dorsiflexors (L5 / peroneal nerve – deep branch)

23. Extensor Hallicus Longus (EHL) (L5 / peroneal nerve – deep branch)

24. Plantarflexors (S1 / tibial nerve)

25. Evertors (S1 / peroneal nerve –superficial branch)

26. Gluteus Medius (L4, L5, S1 / superior gluteal nerve)

27. Gluteus maximus (L5, S1, S2 / inferior gluteal nerve)