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  2. Leg press - Wikipedia

    en.wikipedia.org/wiki/Leg_press

    Cable leg press machine. The leg press is a compound weight training exercise in which the individual pushes a weight or resistance away from them using their legs. The term leg press machine refers to the apparatus used to perform this exercise. [1] The leg press can be used to evaluate an athlete's overall lower body strength (from the ...

  3. Hyperextension (exercise) - Wikipedia

    en.wikipedia.org/wiki/Hyperextension_(exercise)

    A 45 degree back extension bench (note the different type of leg support from the Roman chair) Using a reverse back extension machine (reverse hyperextension machine) This machine has been used to strengthen not only the erector spinae muscle, but also gluteus maximus and part of hamstring muscles (biceps femoris).

  4. Cam (mechanism) - Wikipedia

    en.wikipedia.org/wiki/Cam_(mechanism)

    The development of a linear cam is similar to, but not identical to, that of a rotating cam. [17] Key duplicating machine. The original key (mounted in the left-hand holder) acts as a linear cam to control the cut depth for the duplicate. A common example of a linear cam is a key for a pin tumbler lock. The pins act as followers.

  5. Bicep curl - Wikipedia

    en.wikipedia.org/wiki/Bicep_curl

    Dumbbell incline curl: With an adjustable bench positioned at a 45-degree angle, one could perform incline bicep curls with dumbbells. Incline bicep curls are usually performed with lighter weight compare to regular bicep curls, and by sitting on the incline bench, holding the dumbbells close to the body with elbows tucked in, then performing a ...

  6. Leg extension - Wikipedia

    en.wikipedia.org/wiki/Leg_extension

    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.

  7. Leg raise - Wikipedia

    en.wikipedia.org/wiki/Leg_raise

    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.

  8. Klann linkage - Wikipedia

    en.wikipedia.org/wiki/Klann_Linkage

    Underwater walking robot, using Klann leg linkages in laser-cut and anodised aluminium. [1] The Klann linkage is a planar mechanism designed to simulate the gait of legged animal and function as a wheel replacement, a leg mechanism. The linkage consists of the frame, a crank, two grounded rockers, and two couplers all connected by pivot joints.

  9. Karate stances - Wikipedia

    en.wikipedia.org/wiki/Karate_stances

    The feet are shoulder width apart, toes open at 45 degrees. Sometimes this stance is called soto-hachiji-dachi (外八字立). This is the basic ready stance in Karate. Uchi hachiji-dachi (内八字立, literally "stand like the upside-down character 八") The feet are shoulder width apart, toes facing inwards at 30-45 degrees, knees tense.

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