1, supine is 180 degrees, which means lying flat completely.

2, supine position does not require 180 degrees, as long as the body is supine. People are sitting on a fitness chair, and their upper body is lying on the back of the chair at a certain angle, not lying flat.

3. All similar supine positions can be called supine positions as long as the whole body is not flat at 180 degrees. As for whether you still need to bend your knees, it depends on the action requirements.

Second, the action difference

1, supine position refers to a state in which the longitudinal axis of the human body is as parallel as possible to the ground.

2. supine position refers to a state in which the human body is in supine position, chest, abdomen and face up.

Extended data:

The nature of supine position:

First, according to the autonomy of lying position, it can be divided into active lying position, passive lying position and forced lying position.

1, active lying position: the patient adopts the most comfortable and casual lying position in bed.

2. Passive supine position: The patient can't change the supine position by himself, but lies in the supine position, such as a coma and extremely tired patient.

3. Forced recumbent: The patient has a clear consciousness, but also has the ability to change the recumbent position. Because of illness or treatment, he is forced to take the recumbent position. For example, patients with cor pulmonale are forced to take the sitting position because of breathing difficulties.

Second, according to the balance stability of lying position, it can be divided into stable lying position and unstable lying position.

1, stable lying position: large support surface, low center of gravity, stable balance and comfortable patient. Such as supine position.

2. The supine position is unstable: the support surface is small, the center of gravity is high, and it is difficult to balance. In order to maintain a certain lying position, the patient causes muscle tension, fatigue and discomfort. If your legs are close together, your arms are straight on both sides.

The importance and function of comfortable lying position;

Comfortable lying position means that when the patient lies down, he feels relaxed and comfortable, and all parts of his body are in the right position. The importance and function of keeping comfortable lying position are as follows:

First, assist patients to increase their physical and mental comfort and achieve the goal of complete rest.

B, conform to the requirements of human mechanics, reduce joint pressure and activity restrictions, maintain normal functional position, and avoid joint and muscle contracture.

C, at least every 2 hours, change the lying position 1 time, and strengthen the skin care of the compressed part, which can avoid the skin damage at the bony process and prevent the occurrence of pressure ulcers.

D, some lying positions can relieve symptoms and play the role of adjuvant therapy.

References:

Lying position-Baidu encyclopedia