The knee, the body’s largest joint, is a hinge joint where three bones meet: the thighbone, or femur; the shinbone, or tibia; and the kneecap bone, or patella. Weakness in the Knee and Mechanical Problems. Besides overuse, causes of knee pain include mechanical problems, like muscle imbalance or a loose piece of cartilage in the joint, and knee injuries—from torn ligaments to meniscal tears.
In a healthy individual, cartilage protects these bones where they meet, but as a result of aging and overuse, the cartilage can wear down, which results in osteoarthritis, a condition that affects 18 percent of women and 10 percent of men aged 60 and older, according to the WHO(World Health Organization).
except for overuse, causes of knee pain include mechanical problems, like a loose piece of cartilage PR muscle imbalance in the joint, and knee injuries—from torn ligaments to meniscal tears. Athletes are especially prone to these injuries, which are caused by twisting the knee and by sudden starts and stops.
A sedentary lifestyle is another reason people have knee issues. Lack of exercise means joints get stiff and lose their flexibility.
common causes of knee joint-Obesity,
Fatigue,
Hunger,
Dehydration.
Problems with the thyroid gland,
Fluctuation in blood sugar levels,
A sudden drop in blood pressure
Muscle weakness,
Overuse,
Injuries such as ligament sprain or tear,
Post-menopausal changes,
Age-related degeneration,
Nerve compression in the spinal canal,
Osteoarthritis, Serious causes,
Arthritis affecting the spine,
Tendinitis.
Spinal cord injury, abscess, or tumor
symptoms of a weak knee-
symptoms of knee weakness depend on the underlying cause, signs may include:-Redness, Inability to straighten the knee,
Swelling and stiffness,
Burning sensation,
Instability,
Popping noises when the joint is bent,
Difficulty transitioning from a sitting to a standing position.
knees treatment-
Treating the underlying cause of the symptoms. The overall goal is to treat pain while restoring joint strength and function.