How to do a Leg Raise
Reviewed by Jim Parker, CPT, B.A. Kinesiology
Workouts with Leg Raise
Target muscles worked
Instructions for Proper Form
Leg Raise is a simple bodyweight core exercise that involves laying on the ground and suspending your legs in the air. While your core does play a significant role in raising your legs, the real benefit comes from controlling their descent back to the floor.
- Lie your back onto the ground with your legs extended and arms resting at your sides palms down.
- Slightly tilt your hips upward to position your lower back flush with the floor.
- Prevent your lower back from lifting off the floor by breathing into your stomach and flexing your abdominal muscles.
- Keep your ankles bent to 90 degrees and your legs extended with a slight bend in your knees as you raise your legs to vertical with the floor.
- Lower your legs to the starting position.
Common Form Mistakes
Resting Between Reps
Keep your core engaged for the duration of the exercise, even between reps. This exercise is designed to add instability that your core needs to compensate for. Keeping your core engaged throughout the exercise will improve the effectiveness of the exercise.
Sets & Reps Calculator
Average Leg Raise standards by male, female, gender, weight, age and height
Use this calculator to see Fitbod's possible first recommendations for you. This would be your starting line, based on more than 4.5 billion logged sets from 1.1 million users.
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Alternatives & Variations to Leg Raise
1. Ab Crunch Machine
96.1 mSCORESWAPPED 5,547 TIMESAb Crunch Machine is a variation of Crunches performed with a machine. Unlike standard Crunches, the use of a machine gives you more control over your resistance. In addition, the machine will restrict your range of motion allowing you to focus more on exertion than stabilizing the movement.
- Intermediate
- Abs
- Ab Crunch Machine
2. Crunches
94 mSCORESWAPPED 4,843 TIMESCrunches are one of the most common exercises out there. It’s an easy to perform, bodyweight exercise that targets your abdominals. Crunches are very similar to Sit Ups, however, instead of raising your upper body all the way into a near sitting position, you only raise your shoulder blades off the ground. This is a great exercise for beginners looking to build core strength.
3. Plank
92.8 mSCORESWAPPED 4,773 TIMESPlanks are one of the most common core exercises out there. This is a bodyweight exercise that is performed for time rather than reps. Planks don’t require any movement, instead they force you to place yourself in a position that requires you to engage your core, and maintain that muscle activation for the duration of the exercise. This is a great way to help build strength and stability in a way that will translate to a variety of other exercises, and your daily life.
4. Russian Twist
96.2 mSCORESWAPPED 3,380 TIMESRussian Twist is one of the more common core exercises. This exercise targets multiple muscles in your core, but the reason for including this exercise is usually to target your obliques. By raising your feet off the ground, engaging your core, and twisting to each side, you can better target this specific muscle in your core.
5. Vertical Knee Raise
92 mSCORESWAPPED 3,285 TIMESVertical Knee Raise is a bodyweight core exercise that involves suspending yourself, and then engaging your core to raise your knees towards your chest. By keeping your torso upright, and raising your knees, this exercise is a bit better for building functional, real world strength.
6. Bicycle Crunch
91.8 mSCORESWAPPED 2,820 TIMESBicycle Crunch is a more difficult version of a standard crunch. Instead of raising your torso off the ground for each rep, you keep your torso off the ground, and your core engaged. By cycling your legs, you add more instability to the movement, which leads to better core activation.
7. Cable Crunch
88.8 mSCORESWAPPED 2,532 TIMESCable Crunch is a variation on the more standard Crunch. Unlike Crunches, this is a weighted exercise that does not have you laying on your back. Instead of using your bodyweight for resistance, you use a cable machine. This gives you more control over your resistance, as well as more control over the direction that resistance is coming from.
8. Vertical Leg Raise
82.2 mSCORESWAPPED 2,446 TIMESVertical Leg Raise is a more challenging variation of Vertical Knee Raise. By keeping your legs straight as you raise them up and away from you, you add significantly more resistance to this exercise. Keeping your legs extended also forces you to engage your quadriceps. This is a great variation for anyone looking to make their Vertical Knee Raises more challenging.
- Intermediate
- Abs
- Vertical Bench (Vertical Knee Raise)
9. Sit Up
93.8 mSCORESWAPPED 2,383 TIMESSit Up is one of the most common exercises out there. It’s a bodyweight exercise that targets your core. Sit Ups are very similar to Crunches, however, rather than raising just your shoulder blades off the ground, you raise your entire upper body. This gives you a bit more range of motion than Crunches, however you’ll start to lose some tension in your core at the top of the movement.
10. Hanging Leg Raise
60.2 mSCORESWAPPED 2,332 TIMESHanging Leg Raise is a bodyweight core exercise that primarily targets the abdominals and hip flexors. By hanging from a pull-up bar and raising your legs, you add instability, forcing greater muscle engagement. This is a more challenging variation than Vertical Knee Raises, increasing the demand on your core and possibly the quadriceps, providing excellent strength and muscle-conditioning benefits.