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The leg extension machine was created by American fitness guru Jack LaLanne in the 1950s. [3] The first prototype is recognized to have been made under Gustav Zander, but labeled the machine as a form of “mechanotherapy” along with other machines that extended the knee and ankle. [3] The machine was made to target the quadriceps.
Bridging exercises are done with a flexed knee to lessen the stretch on the hamstring (a knee flexor) and focus the hip extension work on the gluteus maximus. In that same respect, the reduced knee flexion makes plantar flexion work comparable to a seated calf raise, due to the lessened stretch on the gastrocnemius (like the hamstring, also a knee flexor).
Back extension performed at an angle using an exercise ball. Back extensions can be performed with or without various equipment. Without any equipment It may be performed on the ground by lying prone with arms overhead and lifting the arms, upper torso, and legs as far as possible. Gravity provides resistance to strengthen the back extensor ...
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The leg raise is a strength training exercise which targets the iliopsoas (the anterior hip flexors).Because the abdominal muscles are used isometrically to stabilize the body during the motion, leg raises are also often used to strengthen the rectus abdominis muscle and the internal and external oblique muscles.
As treatment, McKenzie recommended exercises and postural instructions which restore or maintain the lumbar lordosis. Although exercises involving lumbar spine extension are emphasized in this treatment protocol, particularly in the early stages, lumbar flexion exercises are usually added at a later time in order that the patient has full range ...
Lying leg curl Standing leg curl at the finishing phase Seated leg curl at starting phase Seated leg curl at finishing phase. The leg curl, also known as hamstring curl, is an isolation exercise that targets the hamstring muscles. [1] The exercise involves flexing the lower leg against resistance towards the buttocks. There are three types of ...
Involuntary extension of the "normal" leg occurs when flexing the contralateral leg against resistance. To perform the test, the examiner should hold one hand under the heel of the "normal" limb and ask the patient to flex the contralateral hip against resistance (while the patient is supine), asking the patient to keep the weak leg straight while raising it.