Not only are there many old people with poor legs and feet in my family, but my uncle is also an orthopedic surgeon. For example, my 80-year-old grandmother has leg joint disease, which is not only so serious that she seldom gets out of bed and walks, but even if my uncle has no less treatment and care, there is still no good solution in the end.
Knee joint structure
According to my uncle, old people are like machines when they reach a certain age. Because some body parts have been worn for a long time, they will not be used when they are old. Generally speaking, the knee joint that bears the weight of the body, because the cartilage inside has almost been ground flat, but also bears the weight of the body, so when the old man barely walks, it will produce the phenomenon of grinding bones, and the pain is unbearable. It is reasonable to change a "part" at this time, but because the physical indicators of the elderly are very unstable, not only the risk of surgery is very high, but even if it is changed, it may lead to other more serious problems.
Just like repairing an old machine, the bearing is worn and replaced, but the crankshaft is out of order again, the crankshaft is replaced and the belt is loose. In short, the more changes, the more complicated the problem. To sum up, for grandma's situation, my uncle usually gives her a closed needle, which can relieve her for a few days. In other words, even a doctor can't do anything good at grandma's level.
To this end, my uncle said helplessly, if grandma can start protecting joints when she is not very old, it will be much easier now! For example, wearing knee pads can not only keep the leg joints warm, but also slow down the wear rate as much as possible. In particular, some sports kneepads do have some functions of sharing the load of joint parts; There is also proper control of your own movements, such as going up and down stairs, because this action is the most wear-out behavior of joints; Finally, paying attention to calcium supplementation and enhancing bone density can actually reduce the speed of joint wear as much as possible.
To sum up, although the elderly need more exercise, they should try to choose some reasonable activities and use some assistive devices to protect their bodies. For example, knee pads or elbow pads can not only keep warm and protect joints from trauma, but also slow down the wear of joints more or less, and try to avoid the pain of joint diseases in the elderly!