Leg lifts are a simple but effective bodyweight exercise that can strengthen the core, hip flexors, and lower abdominal muscles when performed with proper control. They require little or no equipment, making them convenient for home workouts, gym sessions, and travel routines. Despite their simple appearance, leg lifts can become challenging very quickly when technique begins to break down.
The exercise usually involves lying on your back and raising one or both legs while keeping the torso stable. Small changes in knee position, range of motion, and tempo can make the movement easier or harder. Learning how to perform a leg lift correctly can help you build strength while reducing unnecessary stress on the lower back.
Good form matters more than completing a large number of repetitions. Moving too quickly, arching the back, or lowering the legs farther than you can control often shifts tension away from the intended muscles. A slow, controlled approach allows the core and hips to work more effectively throughout each repetition.
What Is a Leg Lift?
A leg lift is a bodyweight exercise where you raise one or both legs while keeping the rest of your body relatively stable. The most common version is performed lying on your back with the legs extended. As you lift and lower them, the abdominal muscles and hip flexors work together to control the movement.
Leg lifts can also be performed while hanging from a bar, lying on your side, or using support from a bench. Each variation changes the difficulty and emphasizes slightly different muscle groups. Beginners usually start with lying leg lifts because the floor provides stability and makes it easier to focus on basic movement control.
The exercise is often included in core workouts because maintaining a stable pelvis requires strong abdominal engagement. However, leg lifts are not purely an abdominal exercise because the hip flexors play a major role as well. Understanding this combination helps explain why some people feel the movement more in the hips than in the stomach.
Muscles Worked During Leg Lifts
The rectus abdominis is one of the main abdominal muscles involved during leg lifts. It helps control the pelvis and resist excessive arching through the lower back. The deeper abdominal muscles also contribute by stabilizing the trunk while the legs move away from and back toward the body.
The hip flexors are heavily involved because they lift the thighs toward the torso. These muscles include the iliopsoas, rectus femoris, and several smaller supporting structures around the front of the hip. Strong hip flexors can support walking, running, climbing stairs, and many other movements involving the lower body.
Additional muscles help stabilize the movement even if they are not the primary target. The quadriceps keep the knees extended during straight-leg versions, while the muscles around the pelvis and lower back help control alignment. This cooperation makes leg lifts useful as part of a balanced core and lower-body routine.
How to Do a Basic Leg Lift Correctly
Start by lying flat on your back with both legs extended and your arms resting beside your body. If you need additional stability, you can place your hands lightly under your hips. Keep your head and shoulders relaxed while gently tightening your abdominal muscles before beginning the movement.
Slowly raise both legs upward while keeping them together and as straight as comfortably possible. Continue lifting until your legs approach a vertical position or until you reach a comfortable range. Avoid using momentum, and keep the movement smooth so the muscles remain responsible for lifting rather than relying on speed.
Lower your legs gradually while keeping your lower back controlled against the floor. Stop the downward movement before your back begins to arch noticeably or your core loses tension. From that point, raise the legs again and continue for the desired number of controlled repetitions.
Common Leg Lift Mistakes
One common mistake is lowering the legs too far. When the abdominal muscles can no longer stabilize the pelvis, the lower back may arch away from the floor. This can reduce the effectiveness of the exercise and create unnecessary discomfort, especially when repeated over many repetitions.
Another mistake is using momentum to swing the legs upward. Fast movements may allow you to complete more repetitions, but they reduce muscular control and can make the exercise less effective. Slowing both the lifting and lowering phases creates more time under tension and helps you recognize when your technique begins to change.
Holding your breath is also common during difficult repetitions. Instead, breathe steadily and exhale gently during the most demanding part of the movement. Comfortable breathing can help you maintain control without creating excessive tension through the neck, shoulders, or upper body.
Benefits of Leg Lifts
Leg lifts can improve core strength by teaching the abdominal muscles to stabilize the pelvis while the legs move. This type of control is useful during everyday movement as well as many other exercises. A stronger core can support better coordination between the upper and lower body during physical activity.
The exercise can also strengthen the hip flexors, which are important for bringing the thigh toward the body. These muscles work during walking, running, stair climbing, and many athletic movements. Training them through a controlled range can help improve muscular endurance when the exercise is appropriately matched to your ability.
Another benefit is convenience. Standard lying leg lifts require no equipment and very little space, making them easy to include in a short home workout. They can also be progressed gradually by changing the range, tempo, leg position, or variation rather than immediately adding heavy resistance.
How Many Leg Lifts Should You Do?
Beginners can start with approximately 6 to 10 controlled repetitions for one or two sets. The exact number matters less than maintaining proper form throughout the movement. If your lower back starts arching or your legs begin swinging, stop the set even if you have not reached your planned repetition target.
As your strength improves, you can gradually increase toward 10 to 15 repetitions for two or three sets. Another option is keeping the repetition range moderate while slowing the lowering phase. A slower tempo can make the exercise significantly more challenging without requiring additional equipment or very high repetition counts.
Your ideal volume also depends on the rest of your workout. If you already perform planks, dead bugs, hanging knee raises, or other demanding core exercises, fewer leg lift sets may be enough. Training quality and recovery are usually more important than performing large numbers of repetitions every day.
How to Make Leg Lifts Easier
Bending the knees is one of the simplest ways to reduce difficulty. A bent-knee leg lift shortens the lever created by the legs, which decreases the demand placed on your abdominal muscles and hip flexors. This modification can help beginners learn pelvic control before progressing to fully straight legs.
You can also limit how far you lower your legs. Instead of trying to reach close to the floor, stop at the point where your abdominal muscles can still keep the pelvis stable. Over time, you may gradually increase the range as strength and control improve.
Performing one leg at a time is another useful option. Single-leg lifts allow the opposite leg to remain bent or supported, reducing the total load. This variation can be helpful when bilateral leg lifts feel too difficult or when you are trying to improve control on each side separately.
How to Make Leg Lifts Harder
Once standard leg lifts become comfortable, slowing the lowering phase can increase difficulty significantly. Try taking three to five seconds to lower your legs while keeping the abdomen engaged. This creates more muscular tension without changing the exercise or adding extra weight.
You can also add a brief pause near the bottom of the movement while maintaining proper back position. Holding the legs just above your comfortable stopping point makes the abdominal muscles work harder. Avoid pausing so low that your lower back arches or you lose control of the pelvis.
Advanced exercisers may progress to hanging leg raises, weighted variations, or more challenging core combinations. These versions require greater strength and body control, so there is no need to rush toward them. Mastering the basic movement first creates a stronger foundation for more demanding exercises later.
Leg Lifts and Lower Back Comfort
Some people feel discomfort in the lower back during leg lifts because the movement creates a strong demand on pelvic stability. When the abdominal muscles fatigue, the pelvis may tilt forward and increase the arch in the lower spine. Reducing the range or bending the knees can make the exercise more manageable.
Placing your hands beneath the hips can sometimes provide additional support, although it should not replace active core control. Focus on keeping the movement smooth and stopping before your back begins to lift excessively. If you repeatedly feel sharp or worsening pain, discontinue the exercise rather than forcing additional repetitions.
Lower-back discomfort can have many different causes, so one modification will not work for everyone. If pain continues during several exercises or everyday activities, professional assessment may be useful. The goal is to find movements that build strength without repeatedly producing significant pain.
Leg Lifts During Pregnancy or Hip Discomfort
Exercise needs can change during pregnancy, and certain positions may become uncomfortable as pregnancy progresses. Lying flat on the back for extended periods may not be appropriate for everyone later in pregnancy, so individualized guidance can be helpful. Exercise choices should be adjusted according to comfort, stage of pregnancy, and professional recommendations.
Hip discomfort may also affect how comfortable leg lifts feel because the hip flexors work strongly during the movement. If lifting the leg causes sharp pain, pinching, or increasing discomfort around the hip, stop rather than forcing through it. People dealing with hip pain should choose exercises that match their current symptoms and physical needs.
Pregnancy-related or persistent hip pain deserves more individualized consideration than a generic workout plan can provide. A healthcare professional or qualified prenatal exercise specialist can help determine which movements are appropriate. Comfortable strength and mobility work may still be possible, but the exercise should never be treated as mandatory.
Best Exercises to Pair With Leg Lifts
Planks can pair well with leg lifts because they challenge the core in a different way. Instead of moving the legs through a large range, planks require the body to maintain a stable position. Combining both exercises can train the abdominal muscles through different types of muscular demand.
Glute bridges are another useful addition because they target the hips from the opposite direction. While leg lifts emphasize hip flexion, bridges focus more on hip extension and the glute muscles. Training both movement patterns can contribute to a more balanced lower-body and core routine.
Dead bugs, bird dogs, squats, and walking can also complement leg lifts depending on your goals. There is no need to perform many core exercises in one session. A few well-chosen movements performed with good technique can be more useful than a long routine built around repeated fatigue.
How Often Should You Do Leg Lifts?
Leg lifts can be included in a core routine two or three times per week for many people. This schedule gives the muscles regular training while still allowing recovery between more demanding sessions. Beginners may need less volume until they become accustomed to the movement.
Training frequency depends on intensity and the total amount of exercise you perform. A few easy repetitions used during a warm-up create much less fatigue than several challenging sets performed close to muscular failure. Consider the entire workout rather than treating leg lifts as an isolated exercise.
You do not need to perform them every day to make progress. Strength generally improves when exercises become gradually more challenging while the body receives enough recovery. Consistency over weeks and months matters more than repeating the same movement as frequently as possible.
Tips for Getting Better Results
Move slowly enough that you can feel where tension is being created. If the legs suddenly drop during the lowering phase, reduce the range or bend your knees. Controlled repetitions help you maintain better technique and make it easier to notice when the abdominal muscles are becoming fatigued.
Keep your exercise progression gradual. Increase one variable at a time, such as repetitions, range, tempo, or exercise difficulty. Changing everything at once can make it difficult to determine whether your body is adapting well or whether the workout has simply become too demanding.
Finally, combine leg lifts with a balanced fitness routine rather than expecting one exercise to develop your entire core. Strength training, cardiovascular activity, mobility work, and sufficient recovery all contribute to overall fitness. Leg lifts are most useful when they support a broader program instead of becoming the only movement you perform.
Conclusion
Leg lifts are a simple bodyweight exercise that can strengthen the abdominal muscles, hip flexors, and surrounding stabilizers. They can be performed almost anywhere and adjusted for different fitness levels. The exercise becomes most effective when you focus on control rather than trying to complete as many repetitions as possible.
Keep your lower back stable, move the legs slowly, and stop the lowering phase before your pelvis loses control. Beginners can make the exercise easier by bending the knees or reducing the range. More advanced exercisers can increase difficulty through slower tempos, pauses, or more demanding variations.
Most importantly, exercise should feel challenging without producing sharp or worsening pain. Progress gradually and adjust the movement when necessary. When performed consistently as part of a balanced routine, leg lifts can be a practical way to improve core and hip strength.
FAQs
Are leg lifts good for your abs?
Yes. Leg lifts require the abdominal muscles to stabilize the pelvis while the legs move. They also involve the hip flexors, so they should be considered a combined core and hip exercise.
How many leg lifts should beginners do?
Beginners can start with about 6 to 10 controlled repetitions for one or two sets. Stop the set when your lower back begins arching or your movement becomes difficult to control.
Why do leg lifts hurt my lower back?
Lower-back discomfort can occur when your core loses control and the pelvis tilts forward. Reducing the lowering range, bending your knees, or choosing an easier variation may help.
Are bent-knee leg lifts easier?
Yes. Bending the knees shortens the lever created by the legs, reducing the load on the abdominal muscles and hip flexors. This makes bent-knee variations useful for beginners.
Can I do leg lifts every day?
Daily leg lifts are not necessary for most people. Two or three focused sessions per week can be enough, especially when the exercise is combined with other core and strength movements.
