When the age is large, the physiological function of the person will gradually decline, the motor function will decrease, the sensory function will decline, and the cervical and lumbar spondylosis will be more frequent. Therefore, the elderly choose a sofa to be more "choosy." 1. Can't be too low. There are more and more low-lying sofas in the market. Although they are fashionable, they are not suitable for the elderly. If the seat is too low, the force surface of the old man's thigh will be reduced and you will feel sore. When sitting on a low sofa, the center of gravity is low, and the old man feels particularly struggling when standing up, and is more likely to fall because of the unstable center of gravity. The height of the seat is about 42 cm, which is about the best height of the calf. 2. Can't be too wide. The seat is too wide, the old man's waist will be far from the back of the sofa, lack of support, causing back pain. The front of the sofa is about 48 cm wide, and the depth of the seat is 48-60 cm. 3. Can't be too soft. The sofa is too soft, and the support of the old man's center of gravity is unstable. People will intentionally or unintentionally move their bodies and seek new balance and stability. Therefore, sitting on a soft sofa for a long time will make people feel backache and fatigue. At the same time, sitting on a soft sofa, it is difficult to maintain the normal curvature of the spine, and the long time will make the back muscles tense, induce or aggravate low back pain. 4. The angle should be large. If the reclining angle and the sitting angle are too small, the abdomen will be squeezed and affect the digestive system. At the same time, the shape of the spine is severely deformed from a normal S shape to a concave shape, resulting in uneven distribution of intervertebral disc pressure, which is unfavorable to the elderly lumbar spine. Therefore, the elderly choose a sofa, should choose the back tilt angle, the sitting angle is too large, preferably between 125 ° ~ 135 °. At this time, the old man leaned on the sofa and felt semi-lying. Need to be reminded that improper sitting or sedentary for a long time will cause muscle tissue to be subjected to different pressures, which may cause excessive collagen growth and muscle pain. Therefore, no matter which kind of sofa, the elderly should not sit for more than 1 hour, and can not take the sofa as a bed. Zhejiang Lamon Technology Inc. , https://www.babychaires.com
The elderly choose the sofa can not be too soft and too low