1, grade 0: refers to the patient's complete loss of muscle strength, inability to perform muscle contraction independently and paralysis.
2. 1 grade: the patient's muscle strength is weak, and he can spontaneously contract, but he can't complete the prescribed movements.
Grade 3 and 2: The patient is lying on the bed, and his limbs can move parallel to the bed surface, but he can't lift off the bed surface.
Grade 4 and 3: the patient's limbs can overcome gravity movement and can be lifted out of bed independently. If resistance is applied to the patient's limbs, the patient cannot resist the resistance movement.
Grade 5 and 4: the patient's limbs can resist mild resistance movement.
Grade 6 and 5: The patient has normal muscle strength and can exercise normally.
If the patient has muscle weakness, the muscle strength can be preliminarily judged by the above method. If you have abnormal muscle strength, you should go to the orthopedic department of the hospital for relevant examination, make clear the cause and carry out active treatment.
Definition of muscle strength:
Muscle strength refers to the strength of muscle contraction when limbs do voluntary movement. The examination method is to instruct the patient to do the joint extension and flexion of the upper and lower limbs in turn, and to resist the resistance given by the examiner, to observe whether the muscle strength is normal, declining or paralyzed, and to pay attention to the paralyzed part.
Generally, upper limbs are used for abduction and adduction of upper arms, flexion and extension of forearms, flexion and extension of wrists, abduction and adduction of fingers, and fist-making. Lower limb hip flexion, calf extension and flexion, plantar flexion, dorsiflexion. When the condition requires it, it is necessary to examine each related muscle separately.
Clinical significance:
Different degrees of muscle weakness can be divided into complete paralysis and incomplete paralysis (paresis).
Paralysis of different parts or combinations can be named as: monoplegia: single limb paralysis, more common in polio; Hemiplegia: one limb (paralysis of upper and lower limbs) is often accompanied by a cranial nerve injury, which is more common in intracranial injury or stroke; Crossed hemiplegia: paralysis of one limb, damage to the contralateral cranial nerve, more common in brain stem lesions; Paraplegia: Paralysis of both lower limbs is the result of spinal cord transection injury, which is more common in spinal cord injury and inflammation.