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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 mammalian species.
The stretch reflex (myotatic reflex), or more accurately "muscle stretch reflex", is a muscle contraction in response to stretching a muscle. The function of the reflex is generally thought to be maintaining the muscle at a constant length but the response is often coordinated across multiple muscles and even joints. [ 1 ]
Here are the five best stretches to release the psoas, according to trainers. The psoas is a hip flexor connecting from the spine to the femur and lower back. Here are the five best stretches to ...
Dynamic stretching is a movement-based stretch aimed at increasing blood flow throughout the body while also loosening up the muscle fibers. Standard dynamic stretches typically involve slow and controlled active contraction of muscles. An example of such a dynamic stretch is lunges.
Continued passive flexion stretches the muscle and the sequence may be repeated. As the muscle tone increases, resistance against flexion of the limb increases as well. However, when flexion is continued, further stretching of the triceps muscle activates an inverse stretch reflex that relaxes the muscle due to autogenic inhibition.
However, there is insufficient evidence to compare the effectiveness of different types of exercises with each other, and exercises with other forms of treatment. [28] Exercise therapy is the recommended first line treatment of PFPS. [3] Various exercises have been studied and recommended. [29] Exercises are described according to 3 parameters: [8]
Reciprocal inhibition is a neuromuscular process in which muscles on one side of a joint relax to allow the contraction of muscles on the opposite side, enabling smooth and coordinated movement. [1] This concept, introduced by Charles Sherrington , a pioneering neuroscientist , is also referred to as reflexive antagonism in some allied health ...
The psoas sign, also known as Cope's sign (or Cope's psoas test [1]) or Obraztsova's sign, [2] is a medical sign that indicates irritation to the iliopsoas group of hip flexors in the abdomen, and consequently indicates that the inflamed appendix is retrocaecal in orientation (as the iliopsoas muscle is retroperitoneal).