Leg extension - Misplaced Pages

Resistance weight training exercise

The leg extension is a resistance weight training exercise that targets the quadriceps muscle (m. quadriceps femoris) 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. The leg extension is an isolated exercise targeting one specific muscle group, the quadriceps. or deadlift.

History

The leg extension machine was created by American fitness guru Jack LaLanne in the 1950s. 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. The machine was made to target the quadriceps. The exact method of inventing the leg extension machine is not consistently recorded, but in most cases, it is attributed to LaLanne.

References

"Leg extension, machine". gluteus-maximus: muscle building, weight loss, training, nutrition. Archived from the original on 2022-03-31. Retrieved 2022-03-31.
Marchetti, Paulo (May 2017). "Effects of Squat Amplitude on Pelvic Tilt and Tibial Inclination". ResearchGate.com. Retrieved November 14, 2024.
^ Hefferman, Conor (December 4, 2017). "History of the Leg Extension Machine". Physical Culture Study. Retrieved November 19, 2024.

v t e Strength training exercises
Pectorals (chest)	Bench press (c) Chest fly (i) Dip (c) Machine fly (i) Push-up (c)
Lats and trapezius (upper back)	Bent-over row (c) Chin-up (c) Muscle-up (c) Pull-down (c) Pull-up (c) Seated row (c) Shoulder shrug (i) Supine row (c) Face pull (c)
Deltoids (shoulders)	Bridge (c) Face pull (c) Front raise (i) Headstand into handstand push-up (c) Lateral raise (i) Rear delt raise (i) Shoulder press (c) Upright row (c)
Biceps (front of arms)	Bicep curl (i) Chin-up (c) Reverse grip push-up (c)
Triceps (back of arms)	Close-grip bench press (c) Close grip push-up (c) Dip (c) Push-down (i) Triceps extension (i)
Forearms	Wrist curl (i)
Abdomen and obliques (abdomen)	Crunch (i) Leg raise (c) Russian twist (c) Sit-up (c) Squat (c)
Lower back	Bridge (c) Deadlift (c) Good-morning (c) Hyperextension (c) Pelvic lift (c)
Hips and buttocks	Bridge (c) Deadlift (c) Dirty dog exercise (c) Leg press (c) Lunge (c) Squat (c)
Quadriceps (front of thighs)	Bridge (c) Deadlift (c) Leg extension (i) Leg press (c) Lunge (c) Squat (c)
Hamstrings (back of thighs)	Bridge (c) Deadlift (c) Good-morning (c) Leg curl (i) Leg press (c) Lunge (c) Squat (c)
Adductors (inside of thighs)	Side-lying leg raise (i)
Calves	Calf raise (i)
See also Bodybuilding Bodyweight exercise Calisthenics Muscle hypertrophy Weightlifting Plyometrics Weight training (List of exercises) Flywheel training Gym Legend (c) – compound exercise, (i) – isolated exercise

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