How to Do Leg Lifts Properly: A Step-by-Step Guide

Note: This article is for general fitness education. If you have hip pain, lower back pain, are pregnant or postpartum, or are recovering from surgery or injury, check with a qualified healthcare professional before adding leg lifts to your routine.

Leg lifts look simple. You lie down, raise your legs, lower your legs, and suddenly your abs start writing strongly worded complaints. But here’s the catch: this move only works well when you do it with control, good core bracing, and a lower back that does not peel off the floor like a startled sticker.

Done properly, leg lifts can help strengthen your core, challenge your hip flexors, and improve the kind of trunk stability that matters in real life, not just in workouts. That means better support for walking, lifting, climbing stairs, and staying steady when life gets chaotic and your posture tries to clock out early.

In this guide, you’ll learn exactly how to do leg lifts properly, what muscles they work, the most common mistakes to avoid, beginner-friendly modifications, and how to progress without turning your lower back into the main character. There’s also a practical experience section at the end, because every exercise looks perfect in theory until your legs start shaking like two dramatic windshield wipers.

What Are Leg Lifts?

Leg lifts, also called leg raises, are core exercises where you lift one or both legs while keeping your trunk stable. The classic version is done lying on your back, but there are also bent-knee, single-leg, side-lying, and hanging versions.

The main goal is not just to move your legs up and down. The real mission is to keep your torso steady while your legs move. That is what makes leg lifts such an effective core exercise. Your abdominal muscles, deep trunk stabilizers, hip flexors, and even muscles that support your lower back all have to cooperate. When they do, the exercise feels smooth and strong. When they do not, your lower back usually sends a complaint immediately.

What Muscles Do Leg Lifts Work?

If you’ve ever wondered whether leg lifts are an ab exercise or a hip exercise, the answer is delightfully annoying: both.

Primary muscles involved

• Rectus abdominis: The front abdominal muscles that help resist excessive arching.
• Internal and external obliques: These help stabilize the trunk and control movement.
• Transverse abdominis: The deep abdominal “corset” that helps brace your core.
• Hip flexors: These lift the thighs toward the torso and do a lot of work during leg lifts.

Supporting muscles

• Inner thighs
• Glutes
• Lower back stabilizers
• Pelvic floor and diaphragm, as part of overall core control

That’s why proper form matters so much. A good leg lift is not about flinging your legs around and hoping your abs file the paperwork later. It is about coordination, position, and tension in the right places.

Why Leg Lifts Are Worth Doing

Leg lifts are popular because they require very little equipment and can be scaled for different fitness levels. They also train the core to resist unwanted movement, which is a huge part of what a strong core is supposed to do.

Benefits of doing leg lifts properly

• Improve core stability and trunk control
• Strengthen muscles that support posture and daily movement
• Challenge the hip flexors in a controlled way
• Build awareness of pelvic position and spinal alignment
• Offer easy progressions and regressions for beginners through advanced exercisers

That last point matters. Leg lifts are accessible, but they are not always easy. Many people discover this after rep three, when confidence leaves the building and the lower back starts negotiating.

How to Do Leg Lifts Properly: Step-by-Step

Here is the classic lying leg lift, broken down into simple steps.

Step 1: Set up on the floor

Lie flat on your back on a mat or towel. Keep your legs together and straight if possible. Place your arms by your sides. If you need more support, you can slide your hands under your hips or backside to make the move slightly easier.

Step 2: Brace your core

Before your legs move, tighten your abdominal muscles. Think about gently drawing your belly button toward your spine. Another useful cue: flatten your lower back into the floor. You do not need to jam yourself into the mat like you are trying to become one with the carpet, but you do want to avoid a big lower-back arch.

Step 3: Start with a small pelvic set

If you struggle to keep your lower back down, do a gentle pelvic tilt first. This helps position the pelvis and switches your core on before the movement begins. It is a small move, but it makes a big difference.

Step 4: Lift your legs slowly

Inhale as you raise your legs together. Keep them as straight as your mobility allows. Lift only as high as you can without losing control. Some people aim for vertical. Others should stop sooner. Both are fine. This is not a contest, and your hamstrings did not sign up for a hostage situation.

Step 5: Lower with control

Exhale as you lower your legs slowly. This is the part where people get overconfident, speed up, and accidentally recruit momentum, hip flexors, and chaos. Go slow. A useful rhythm is about two seconds up and two seconds down.

Step 6: Stop before your back arches

Lower your legs only as far as you can while keeping your lower back connected to the floor. The moment your spine starts popping off the mat, that is your stopping point. That point might be high at first. Totally normal.

Step 7: Repeat for controlled reps

Start with 6 to 10 controlled repetitions. If that feels good, do 2 to 3 sets with rest in between. Quality beats quantity here. Ten clean reps will do more for you than twenty sloppy ones performed in the spirit of gym-based optimism.

Breathing Tips That Make Leg Lifts Better

Breathing matters more than many people think. Holding your breath can increase tension where you do not want it and make it harder to maintain proper abdominal engagement.

• Inhale to prepare or during the lift if that helps you stay controlled
• Exhale during the most challenging part of the movement, especially the lowering phase
• Keep the breath steady rather than bracing like you’re trying to win a staring contest with gravity

When your breathing is smooth, your core tends to stay organized. When your breathing gets weird, your form usually follows.

Common Leg Lift Mistakes

1. Arching your lower back

This is the big one. If your lower back lifts off the floor, the exercise often becomes more about your back and hip flexors than your core. The fix is simple: reduce your range of motion, bend your knees, or try one leg at a time.

2. Moving too fast

Fast reps make it easier to use momentum and harder to maintain tension. Leg lifts work best when they are slow, controlled, and slightly rude to your ego.

3. Lowering too far

People often think a bigger range automatically means a better workout. Not true. Only go as low as you can while keeping your spine stable and your core engaged.

4. Letting the hip flexors do everything

If you feel only the front of your hips working, your core may not be contributing enough. Regress the move and focus on bracing before the lift.

5. Starting too advanced

Straight-leg double raises are not always the best place to begin. Bent-knee versions, heel taps, dead bugs, and single-leg raises are smarter starting points for many people.

Best Beginner Modifications

Bent-knee leg lifts

Bend your knees to 90 degrees and lower your heels toward the floor. This shortens the lever and reduces stress on the core and lower back.

Single-leg lifts

Lift one leg at a time while the other stays bent or extended. This gives you a chance to learn control on each side without overloading your trunk.

Heel taps

Lie on your back with knees bent at 90 degrees. Brace your core and tap one heel toward the floor at a time without letting your spine move.

Dead bug progressions

If leg lifts feel too intense, dead bugs are a fantastic stepping stone. They teach you how to move the legs while keeping the pelvis and spine stable.

How to Progress Once You Get Stronger

Once the basic version feels solid, you can increase the challenge in a smart way.

• Pause for one to two seconds at the bottom
• Slow the tempo even more
• Try flutter kicks while maintaining a stable trunk
• Add a hollow-body hold setup
• Move to hanging knee raises, then hanging leg raises if you have the strength and equipment

Just remember: progression should come from better control, not more wobbling. The goal is stronger movement, not dramatic suffering with decorative reps.

How Often Should You Do Leg Lifts?

For most people, 2 to 4 times per week is plenty when leg lifts are part of a balanced training plan. You do not need to do them every day unless your programming is specifically built that way and your recovery is good.

A simple approach could look like this:

• 2 to 3 sets
• 6 to 12 reps per set
• Rest 30 to 60 seconds between sets

If your form breaks down before that range, stop earlier. Better to finish strong than to finish like a folding lawn chair.

When to Skip or Modify Leg Lifts

Leg lifts are not ideal for everyone in every season of life. You may need to modify or avoid them if:

• You have current hip or lower back pain
• You are pregnant or recently postpartum
• You have diastasis recti or abdominal separation concerns
• You are recovering from abdominal, back, or hip surgery
• You feel sharp pain, pinching, or nerve-like symptoms during the move

In those situations, a physical therapist, physician, or certified trainer can help you choose a better regression. Sometimes the smartest version of an exercise is not the hardest one. It is the one your body can do well.

A Sample Leg Lift Mini Workout

Beginner version

• Pelvic tilts: 8 reps
• Heel taps: 10 per side
• Single-leg lifts: 8 per side
• Dead bug: 6 per side

Intermediate version

• Bent-knee double leg lifts: 10 reps
• Straight-leg lifts: 8 reps
• Flutter kicks: 20 seconds
• Hollow hold: 15 to 20 seconds

Rest briefly between exercises, and focus on smooth control over speed.

Real-World Experiences With Leg Lifts: What People Usually Notice

Now for the part that almost every beginner appreciates: what leg lifts actually feel like in real life, not just in polished fitness tutorials where everyone looks suspiciously calm.

At first, many people are surprised by how difficult leg lifts feel even though the movement looks basic. The usual expectation is, “I’m just lifting my legs. How hard can it be?” The answer, delivered by your core about five seconds later, is: harder than expected. That is especially true if you sit a lot, have tight hip flexors, or have never trained deep core control before.

A common first experience is feeling the front of the hips work more than the abs. This does not always mean you are doing the exercise wrong, but it usually means you need a better setup. Once people learn to brace the core first, slightly tilt the pelvis, and stop lowering the legs before the back arches, the exercise starts to feel very different. Suddenly the abs join the meeting, and the move feels more connected and less like a tug-of-war between the mat and your hip flexors.

Another very normal experience is discovering that smaller movement feels harder than bigger movement. That sounds backward, but it makes sense. A slower, shorter, controlled rep forces your trunk to stay engaged the entire time. Momentum cannot save you. Your legs cannot cheat. Your ego may object, but your body usually understands the assignment.

People also notice that single-leg versions are often more productive than jumping straight into double-leg raises. With one leg moving at a time, it is easier to keep the back flat and learn where your real control ends. This is where confidence starts to build. You stop guessing. You start feeling what “good form” actually means.

Over a few weeks, many exercisers report a nice crossover effect: everyday movements feel steadier. Getting out of bed, climbing stairs, carrying groceries, or holding a plank tends to feel more organized. That is the sneaky beauty of leg lifts. They are not just about one exercise. They teach your body how to control the middle while the limbs move, which is a useful skill in sports, strength training, and regular life.

There is also a psychological win here. Leg lifts reward patience. They teach you that modifying an exercise is not “doing the easy version.” It is doing the effective version for your current level. For a lot of people, that mindset shift is huge. Instead of chasing the most impressive-looking variation, they start chasing the cleanest one. That is where progress usually happens.

So if your first few sessions feel awkward, shaky, or humbling, congratulations. You are having the standard leg-lift experience. Stay with the basics, breathe, keep your lower back grounded, and let control lead the way. In time, the movement becomes smoother, stronger, and oddly satisfying. Your abs may still complain, but now they will be complaining for all the right reasons.

Conclusion

Leg lifts are one of those classic exercises that seem straightforward until you actually try to do them well. The difference between a random leg wave and an effective leg lift comes down to posture, core bracing, breathing, and control. Keep your lower back supported, move slowly, and choose a version that matches your current ability.

If you do that, leg lifts can become a valuable part of your workout routine, helping you build stronger core stability, better body awareness, and more confidence with movement. No fancy machine required. Just a mat, a little patience, and a willingness to stop pretending momentum is a training strategy.