Estrogen is responsible for the fragility of the cartilage and would increase the risk of injury of the knee in women.
Women more affected by injuries of the knee
Women have the knees more sensitive and more susceptible to injury, according tothe results of a study published in the medical journal Medicine & Science in Sports& Exercise. In question, the higher rates of osteogenic, which would weaken the ligaments and would increase the risk of injuries in women's sports.
Estrogen in question
The results of this study reveal two key information. Some estimates say a risk multiplied by 1.5 to 2 knee injuries (type anterior cruciate ligament, which connects the upper and lower knee parts), at the young women's sporting.
This type of disabling injury can put an end to the athletic career. Thus, less than half (49%) of female athletes who have suffered this type of injury will continue their journey. Among sports amateurs consequences exist and are debilitating in the long term. Young women live with sustainable instability of the knee, difficulties in walking and early arthritis.
On the other hand that estrogen (a female sex hormone) would be involved in this fragility.
Researchers at the University of Texas (United States) conducted a study with 23 428 young women aged 15 to 19 years. They found that participants who have been victims of this type of injury and taking a contraceptive pill were less likely to have restorative surgery than those of the same age who do not oral contraception use.
"The female hormone estrogen makes women more vulnerable to injuries of the knee by weakening this ligament," explains Dr. Aaron Gray.
"Oral contraceptives helps to maintain more stable levels of estrogen, which can reduce this ligament vulnerability," said the lead author, Dr. Aaron Gray.