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The intensive sport promotes osteoarthritis.
The chondral lesions are more common in subjects with sudden changes of direction.
Cartilage degradation is significantly worsened by the joint trauma
Moderate physical activity, varied, can participate in the prevention and treatment of osteoarthritis.
The maintenance period the mechanical properties of cartilage, muscle strength and joint mobility.
Disciplines like cycling, swimming, water aerobics, stretching and even weight training or walking often prove beneficial.
Many studies have found a high rate of knee osteoarthritis among top athletes practicing football, rugby, basketball, wrestling, judo, weightlifting and dance (3). Within a group of footballers aged on average 35 years, 60% shows signs of osteoarthritis ankle against 6% in the general population. The upper limb is not spared. Although the shoulder does not support the weight of the body, it frequently shows osteoarthritis among swimmers and basketball players. More broadly, 50% of former top athletes aged 50 suffer from osteoarthritis against 30 to 40% of sedentary the same age. Finally, the "hip footballer" is a particular entity. The subchondral bone is denser, osteophytes appear, yet cartilage thickness is maintained. For some, these images show a joint coating eroded but swollen with edema!
When monopod support Pauwels showed that the coxofemoral behaves like a balance. The gluteus medius supports the pelvis and chest despite an unfavorable lever arm. This results in a joint pressure equal to 4 times the weight of the body. During sporting activity, the phenomenon is growing because the trunk frequently flop away from the hip joint. In addition, add the pressure resulting from each reception. Trotting at 12 km / h, the impact peak is already equal to 3 times the weight of the body.
The chondral structure intolerant shears and rotations. The stack of chondrocytes is designed to withstand the stresses in pressure. The integral sports sharp turns and twists are particularly harmful.
Trauma inherent in sport are aggravating factors. They promote early osteoarthritis in case of continuation of the activity. The meniscectomy greatly increase the chondral pressures. Direct joint sprains shocks but also cause impaction cartilage responsible for mechanical and inflammatory lesions. Chronic laxity sequelae, even asymptomatic, cause micro-movements that erode cartilage.
Some constitutional abnormalities increase the risk of osteoarthritis in case of intensive sport. This is the case of varus frequently encountered among followers of supported sports. This is the case of hypermobility often found in the dancer or gymnast.
Strict rest has proven harmful to the cartilage. Chondral the coating thins. Collagen fibers are no longer oriented in the stress axis. The articular surface becomes irregular with concavities and ulceration at points of contact with the bone part opposite one another. Conversely, a well-conducted physical activity has a pump effect on the cartilage tissue avascular. It promotes its nutrition by imbibing. Bearings-slides perform a real bore, called
To preserve the cartilage, it is customary to provide sports practiced in the axis of the joints. Activities "analytical" type of cardio equipment, weights, maintenance, gym, sweet and even hiking or jogging stretching are possible. They are preferable to more fun disciplines such as snowshoeing or ball sports. For fans of football or tennis, it is essential to encourage a "joint preparation" through more analytical practices. Sports activities should be moderate. Three to four weekly sessions of 30 minutes to 1 hour seem optimum. It is better to diversify disciplines to better distribute the joint stress. Vary activities can divide the risks and increase profits. "
If incipient osteoarthritis (1), joint bore the chondral imbibing, muscle building and maintaining flexibility remains advisable. It is necessary to reduce the pressure and outlaw twists. Disciplines "worn" without direction change can be proposed. Cycling, swimming or water aerobics are found most often beneficial.
1 - BUCKWALTER J et al. Aging, sports and osteoarthritis. Sports Medicine and Arthroscopy Review 1996; 4: 276-287
2 - ETTINGER H. coll.JAMA and 1997; 277; 25-31
3 - VIGNON E. Osteoarthritis Paris, Ed Pharmascience 1999.
The main objective of the study was to compare the performance of GNRB┬« and that of Telos Ôäó in the diagnosis of a partial tear of the anterior cruciate ligament (ACL) methods. A prospective study from January to December 2011 included all patients with partial or complete tear of the ACL reconstruction without prior with a healthy contralateral knee. The anterior laxity was measured in all patients by the Ôäó T├ęlos and GNRB┬«. read lsuite ...
The rupture of the anterior cruciate ligament (ACL) is one of the most common injuries in athletes. Many studies have shown that equivalent practical level the risk of ACL injury in women was four to seven times higher than in men [1-4]. In the US, approximately 38,000 ACL injuries in female athletes occur per year .
Women have four to eight times more likely than men to have a ruptured anterior cruciate ligament (ACL). This risk seems more important during the pre-ovulatory phase of the menstrual cycle than during the post-ovulatory phase. The main objective of the study was to describe the distribution of ACL injuries during the menstrual cycle in a large recreational skiers population.
The main goal of this study Was to compare the results of the GNRB arthrometer To Those of Telos TM in the diagnosis of partial thickness tears of the anterior cru- ciate ligament (ACL). A prospective study Performed January- December 2011 included all patients presenting with a partial or full-thickness tears ACL without ACL recon- struction and with a healthy contralateral knee. Anterior laxity Was Measured in all patients by the Telos TM and GNRB├ĺ devices.
The high and complete rupture of the hamstring tendons, tendon avulsion, at the ischial is rare. The severity of the injury is often underestimated. There is no consensus on treatment. Functional treatment of these lesions simply by immobilization in a splint flexion knee gives bad results, unlike the early surgical treatment and / or late.
The meniscus is a small wedge between the two knee bones. At the top is the femur, the thigh bone. Downstairs there is the tibia, the leg bones. The bottom of the femur is rather round and the top of the tibia appears much flatter. These two bones do not fit together well. The menisci that allow a better insertion of the tibia on the femur. There are two menisci in each knee.