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Schematic representation of patellar tendon reflex (knee jerk) pathway. The patellar reflex, also called the knee reflex or knee-jerk, is a stretch reflex which tests the L2, L3, and L4 segments of the spinal cord. Many animals, most significantly humans, have been seen to have the patellar reflex, including dogs, cats, horses, and other ...
They may place their hands over the anterior patella or describe a circle around the patella. This is often called the "circle sign". [3] Pain is usually initiated when weight is put on the knee extensor mechanism, such as when ascending or descending stairs or slopes, squatting, kneeling, cycling, or running.
To test the medial meniscus, the hand at the heel applies a valgus force and external rotates the leg while extending the knee. To test for the lateral meniscus, the varus force, internal rotation are applied to the leg while extending the knee. Any clicking, popping, or catching at the respective joint line indicates the corresponding meniscal ...
Single-Leg Stand: Stand on one leg while keeping your other leg lifted slightly off the ground. Hold this position for 20 to 30 seconds, then switch legs. Hold this position for 20 to 30 seconds ...
Using too much weight, lifting with your back instead of the legs, and even the wrong hand grip can result in pain and injuries. These include muscle strains, torn rotator cuffs, patellar ...
The research found that the duration one can stand on a single leg declined at the rate of 2.2 seconds per decade in the non-dominant leg, while doing the same at the rate of 1.7 seconds per ...
Kneeling is a basic human position where one or both knees touch the ground. It is used as a resting position, during childbirth and as an expression of reverence and submission. While kneeling, the angle between the legs can vary from zero to widely splayed out, flexibility permitting. It is common to kneel with one leg and squat with the ...
Hypermobility, also known as double-jointedness, describes joints that stretch farther than normal. [2] For example, some hypermobile people can bend their thumbs backwards to their wrists and bend their knee joints backwards, put their leg behind the head or perform other contortionist "tricks".