Leg extension

Leg extension

The leg extension is a resistance weight training exercise that targets the quadriceps muscle in the legs. The exercise is done using a machine called the Leg Extension Machine. There are various manufacturers of these machines and each one is slightly different. Most gym and weight rooms will have the machine in their facility. The leg extension is an isolated exercise targeting one specific muscle group, the quadriceps. It should not be considered as a total leg workout, such as the squat or deadlift.

The exercise consists of bending the leg at the knee and extending the legs, then lowering them back to the original position.^[1]

Risk of Injury

Most fitness experts and coaches advise people to not use an isolating Leg Extension Machine due to the unnatural pressure it places on the knees and ankles. Regular use of the machine can lead to permanent knee injuries.^[2]

References

↑ "Leg Extensions Exercise Guide and Video". BodyBuilding.com. Retrieved 13 December 2013.
↑ http://www.menshealth.com/mhlists/avoid_lifting_injuries/The_Seated_Leg_Extension.php

Strength training exercises

Quadriceps (front of thighs)	Deadlift (c) Leg extension (i) Leg press (c) Lunge (c) Squat (c)

Hamstrings (back of thighs)	Deadlift (c) Good-morning (c) Leg curl (i) Squat (c)

Calves	Calf raise (i)

Pectorals (chest)	Bench press (c) Chest fly (i) Dips Machine fly (i) Push-up (c)

Lats and trapezius (back)	Bent-over row (c) Chin-up (c) Pulldown (c) Pullup (c) Seated row (c) Shoulder shrug (i) Supine row (c)

Deltoids (shoulders)	Front raise (i) Head stand into Handstand push-up (c) Lateral raise (i) Military press (c) Rear delt raise (i) Shoulder press (c) Upright row (c)

Biceps (front of arms)	Biceps curl (i) Chin-up (c)

Triceps (back of arms)	Close-grip bench press (c) Dip (c) Pushdown (i) Triceps extension (i)

Forearms	Wrist curl (i)

Abdomen and obliques (belly)	Crunch (i) Leg raise (c) Russian twist (c) Sit-up (c)

Lower back	Deadlift (c) Good-morning (c) Hyperextension (c)

See also Bodybuilding Bodyweight exercise Calisthenics Weightlifting Plyometrics Weight training (List of exercises) Gym Legend (c) - compound exercise, (i) - isolated exercise

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