The degrees and types of sprains are basically three, but they all have something in common: the involvement of a joint. A sprain is a ligament injury, since the main structure affected is a ligament or several at the same time.
The ligaments in question belong to some joint. It can be a sprained ankle, wrist, knee, shoulder, among others. However, by far the most common is the one that affects the ankle.
Ligaments are made up of fibers that have a certain elasticity. This physiologically permissible stretch provides mobility to the joints. The problem is that this flexibility is not infinite. When the movement exceeds the capacity of the ligament, then injury occurs.
We could say that a sprain is the stretching of an articular ligament beyond its capacity, even with the possibility of a tear. It is, in a sense, a dislocation as well, since the joint loses its line of stability and the normal form of contact between the bones that form it.
The two groups most affected by sprains are athletes and the elderly. The former due to frequent exposure to exercise-related injuries, and the latter due to the lack of flexibility that occurs with age.
Risk factors for sprains
Before developing the degrees and types of sprain that exist, it is important to know what are the risk factors that predispose to injury. Anyone can suffer from it, but some are more exposed due to their physical condition or the activities they carry out.
The most frequent risk factors are:
Sports practice: the joints work too hard in certain sports. Exercise stresses the ligaments, and a wear and tear sprain can eventually occur. It can also happen untimely due to trauma during practice or a bad footprint.
Age: the older there is less flexibility. Ligaments stiffen over time and joints stiffen. Of course, this factor is also influenced by the degree of physical activity that the person has done during his life.
Overweight: by having more weight on our body, the joints have to bear a greater load. Even if you are not doing an impact sport, the obese body can sprain walking on flat ground. The joints of the lower limbs are the most affected.
Sedentary: the lack of physical activity deteriorates the joints. This can cause an injury when trying to perform an exercise that we are not used to, or when starting a sport abruptly.
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