How to Fix Sinking Legs Swimming: 6 Drills

A swimmer can be working hard, kicking fast, and still feel like their legs are dragging behind them. That is frustrating because it makes freestyle feel exhausting before the swimmer has even crossed the pool. Learning how to fix sinking legs swimming starts with a key truth: this is usually a body-position issue, not a problem solved by kicking harder.

For young swimmers, improving leg position can create an immediate change in confidence and speed. When the body rides higher, each stroke moves farther, breathing becomes calmer, and the swimmer has more energy left for learning real technique. The goal is not to force the legs to the surface. The goal is to create a long, balanced line from head to toes.

Why Legs Sink in Freestyle

Water supports the lungs more than the hips and legs. That means a swimmer’s natural tendency is to float with the chest high and the lower body lower. Good freestyle technique manages that tendency through balance, posture, core connection, and a steady kick.

The most common cause is a lifted head. When a swimmer looks forward instead of down, the head acts like one end of a seesaw. It rises, and the hips and legs drop. This can happen while swimming, but it is especially common during breathing. A swimmer who lifts their whole head to get air often loses their body line for several strokes afterward.

Tight shoulders, stiff ankles, and a weak or disconnected core can also contribute. So can pressing down on the water with the lead hand. When the front arm pushes downward rather than reaching forward, the chest rises and the hips fall. It is why a swimmer may appear to be kicking constantly but still go nowhere efficiently.

For some children, body shape and buoyancy play a role too. A swimmer with naturally dense legs may need more precise balance skills than a swimmer who floats easily. That does not mean they are not built for swimming. It means technique matters even more.

How to Fix Sinking Legs Swimming: Start With Balance

Before asking a swimmer to kick harder or take more strokes, check their head position. In freestyle, the eyes should look mostly down toward the bottom of the pool, with the neck relaxed. A useful cue is: "Let the water hold the back of your head." The swimmer does not need to tuck their chin tightly. They simply need to avoid looking ahead.

Next, ask the swimmer to press the chest slightly into the water. This can feel backward at first. Young swimmers often think they need to lift their chest to stay afloat, but a gentle chest press helps the hips rise behind them. Think of the body as a long teeter-totter: allowing the front of the body to settle into the water gives the back end room to come up.

The front arm should also extend forward with purpose. Reach forward, not down. The hand enters, the arm lengthens, and the swimmer stays tall through the side of the body. If the arm drops toward the pool floor, the body often follows.

Finally, connect the middle of the body. A swimmer does not need to squeeze every muscle or hold their breath. They should feel gently firm through the stomach, ribs, and hips, as if they are holding a strong streamline while moving forward. This connection keeps the kick from becoming separate from the rest of the stroke.

Fix the Breath Before Fixing the Kick

Many sinking-leg problems are really breathing problems. Watch what happens when the swimmer turns for air. If they lift their face forward, their legs will usually sink. If they rotate the body to the side while keeping one goggle in the water, their line stays much stronger.

Teach swimmers to breathe by rotating, not lifting. The head turns with the body, staying low and relaxed. One goggle remains in the water, and the mouth clears the surface just enough to inhale. Then the face returns down smoothly before the lead arm begins to drop.

Exhaling continuously underwater matters as well. A swimmer who holds their breath tends to rush the inhale, lift the head, and lose control of the stroke. Calm bubbles create calmer breathing. Calmer breathing protects body position.

This takes patience. A child may be able to hold a good line while swimming without breathing, then lose it the moment they turn for air. That is normal. Practice the skill in short repeats with plenty of feedback rather than asking them to fight through long, tired lengths.

Six Drills That Build a Higher Body Line

Use drills to help swimmers feel the right position before expecting them to maintain it in full freestyle. Quality matters more than distance. Stop a drill when form fades, reset, and repeat it well.

• Push-and-glide with eyes down: Push off the wall in a tight streamline, looking straight down. Hold the line for a few seconds and notice whether the heels stay near the surface. This teaches the feeling of balance before strokes are added.

• Superman float: With one arm extended and the other at the side, kick gently on the stomach with the face in the water. The extended arm should reach forward, not press down. Add a small side breath only after the swimmer can stay long and level.

• Side kick: Lie on one side with the bottom arm extended and the top arm resting at the side. Keep one goggle in the water and one goggle out. This drill teaches rotation, low breathing, and hip position all at once.

• Six-kick switch: Kick on one side for six controlled kicks, take one stroke, then rotate to the other side. The focus is a long body line during each side-kick position, not a fast switch.

• Freestyle with a snorkel: A center-mount snorkel removes the breathing interruption so swimmers can focus on looking down, pressing the chest slightly, and holding their hips high. It is an excellent tool when used with coaching, but it should support good habits rather than replace breathing practice.

• Short freestyle with a quiet kick: Swim 10 to 15 yards with a small, steady kick from the hips. The feet should stay relaxed, and the toes should point back. If the splash is huge, the knees may be bending too much or the swimmer may be trying to muscle the legs to the surface.

What a Productive Freestyle Kick Looks Like

A better kick is not always a bigger kick. In fact, an oversized kick can push the body up and down, burn energy, and make timing less stable. For most developing freestyle swimmers, the kick should be narrow, quick, and relaxed, beginning from the hips with a soft bend in the knees.

Ankle flexibility matters. Stiff feet act like brakes in the water, while relaxed ankles let the feet move more naturally. Swimmers can improve mobility with gentle ankle pointing and flexing on deck, but they should never force painful stretches. Consistent practice and proper kicking mechanics are more valuable than chasing extreme flexibility.

Kickboards have a place, especially for teaching basic propulsion and ankle movement. But they can also encourage some swimmers to lift the head and chest, which drops the hips. Use them intentionally and balance board kicking with streamline kicking, side kicking, and full-body drills.

Give Young Swimmers One Cue at a Time

Parents and coaches often see three or four things they want to correct at once. Resist that urge. A swimmer who hears "look down, kick smaller, tighten your core, reach farther, and breathe lower" may only feel overwhelmed.

Choose the correction that will make the biggest difference. For one swimmer, it may be eyes down. For another, it may be steady bubbles before the breath. Once that skill becomes more automatic, add the next piece. Visible progression comes from clear, repeatable coaching cues, not from piling on instructions.

At Alpha Swim Club, swimmers build these foundations in structured stages because body position affects everything that comes next: efficient freestyle, stronger backstroke, smoother turns, and the confidence to train with purpose. A high body line is not a trick. It is a skill developed through focused repetition.

The next time legs start to sink, do not tell the swimmer to simply kick harder. Reset the head, lengthen the front arm, let the chest settle, and make the breath quieter. A few well-executed lengths can give a young swimmer the feeling they need to keep moving forward with confidence.