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6 min read ยท Updated on July 17, 2026

Why you fight the water instead of gliding: the 3 most common body-position mistakes

Swimmer holding a flat, horizontal freestyle body position โ€“ underwater shot in a swimming pool.

You go full throttle and still barely move forward? Then it's almost never a lack of strength. The biggest brake in freestyle is drag โ€“ and your body position, meaning how flat and streamlined you lie in the water, largely determines it.

Drag grows with the square of your speed and with your frontal area. A sinking hip dramatically increases exactly that frontal area. The good news: the three most common body-position mistakes can be fixed with a few targeted corrections โ€“ no extra strength required.

Mistake 1: the head looks forward

The most common mistake starts at the head. Looking forward to see where you're going automatically lifts your head โ€“ and like a seesaw, your hips drop. Head and hips are directly coupled through the spine: head up means pelvis down.

The fix: look at the pool floor, keep the neck long, let the waterline cross roughly the crown of your head. You see the floor, not the wall โ€“ and your legs rise almost on their own.

Mistake 2: the hips sink

When the hips sink, you drag your legs through the water like an anchor. Besides the head, the causes are often an arched lower back, missing core tension and a kick that's too deep and driven from the knee.

The fix: lean lightly on your chest, engage your core as if lengthening your body, and kick loosely from the hip instead of the knee. A compact, small kick keeps the legs at the surface.

Mistake 3: breathing pulls you out of line

Lifting the head to breathe instead of rolling it to the side is the third classic. Every lift costs you the flat position โ€“ and your rhythm breaks.

The fix: turn your head with your body rotation, keep one eye underwater, let the lower cheek rest on the water. Exhale actively and continuously into the water so that inhaling only takes a short sip of air.

The root of all three mistakes: core tension

All three mistakes share one root: missing core tension. Without a stable trunk the body buckles in the middle, and no head or leg correction holds for long. That's why body position is always core training too.

Practise the flat position in isolation: push off the wall in a tight streamline, look down, body long and engaged โ€“ and glide as far as you can before your first stroke. That's how you feel what a true streamline position is like.

  • Look at the pool floor, neck long.
  • Lean lightly on the chest, engage the core.
  • Kick loosely from the hip, compact.
  • Roll the head to breathe, don't lift it.
  • Exhale continuously into the water.

Frequently asked questions

Why do my legs sink in freestyle?
Usually because the head is too high and core tension is missing. Head and hips are coupled โ€“ lower your gaze to the pool floor and engage the core, and the legs rise almost on their own. A deep kick from the knee makes the sinking worse.
How do I improve my body position when swimming?
Lower the head (look down), lean lightly on the chest, engage the core and kick loosely from the hip. Practise the flat position in isolation with streamline push-offs from the wall.
Is poor body position a strength or a technique issue?
Almost always technique. The largest part of swimming drag is form drag โ€“ your body position. More strength doesn't fix it; a flatter position does.
Should I look forward or down in freestyle?
Down to slightly forward-and-down. Looking straight ahead lifts the head and drops the hips. A gaze at the pool floor keeps the body flat and streamlined.