The duck step test is an examination of whether the patient has abnormal gait, which is characterized by two feet open and a slow swing, showing a special "duck step" gait.

Basic Information

Specialist classification: growth and development check classification: other inspection

Applicable gender: whether men and women apply fasting: not fasting

Analysis results:

Below normal:

Normal value:

Above normal:

Negative: There is no “duck step” gait.

The two feet opened and walked slowly, showing a special "duck step" gait.

Tips: Relax when you check, face it positively, and check with your doctor. Normal value

The test result was negative: there was no "duck step" gait.

Clinical significance

Abnormal results: The test result is positive and may have the following diseases:

1. Duchenne type malnutrition (DMD) is also called severe pseudo-fat large-scale malnutrition. It is almost only found in boys. If the mother is a gene carrier, 50% of the male offspring are sick, often starting from 2-8 years old. Feeling walking benzene, easy to fall, can not run and boarding, standing sulcus, standing abdomen, two feet open, walking slowly swinging, showing a special "duck step" gait, when walking from the back is very difficult, must First turn over and prone, then climb your knees with both hands and gradually support the standing up (Gower sign). Can also be seen in the proximal muscles of the limbs, quadriceps and arm muscles.

2, Becker type (BMD) also known as benign pseudo-hypertrophic muscular dystrophy, often starting after the age of 10, the first symptom is weak pelvic and femoral muscles, slow progress, long course, 25 years after symptoms appear or It can't be walked for more than 25 years. Most of them do not occur when they are 30-40 years old, and the prognosis is good.

(B) face shoulder - squat muscular dystrophy: both men and women, adolescent onset, first facial muscle weakness, often asymmetry, can not show teeth, lips. Closed eyes and frown, scapular muscles can have a fake Sexual hypertrophy, resulting in thick lips and lips, some shoulder and ankle muscles are first affected, so that the two arms can not lift up the shoulder, the upper arm muscles atrophy, but the forearm and hand muscles are not invaded. The course of the disease is extremely slow and often frustrated or relieved.

(3) Limb-type muscular dystrophy: both sexes are common, starting from children or young people, first affecting the pelvic girdle muscles and the psoas muscles, walking difficulties, not being able to climb the stairs, gait swinging, often falling, and some only Involved in the quadriceps. The course of the disease is extremely slow.

(D) other types: quadriceps type, distal type, progressive extraocular muscle paralysis type, eye muscle-pharyngeal muscle type, etc., very rare.

The people who need to check: the two feet are open, the walk is slowly swaying, and the crowd is in a special "duck step" gait.

Positive results may be diseases: progressive muscular dystrophy, myotonic dystrophy, muscular dystrophy

Taboo before inspection: no special contraindications.

Requirements for inspection: Relaxation during the examination, the examination may cause physical and psychological burdens, should be actively faced, and actively cooperate with the inspection.

Inspection process

Observe the patient's gait and record the walking posture.

Not suitable for the crowd

Inappropriate crowd: None.

Adverse reactions and risks