Swimming

Freestyle Streamline Flutter Kick

The freestyle streamline flutter kick is a swimming drill with your arms extended overhead. It trains kick endurance and body alignment while you move through the water without arm strokes.

  • Intermediate
  • Moderate injury risk
  • Rest 30 sec
Video by U.S. Masters Swimming on YouTube

How to do it

  1. Place your feet against the pool wall with your knees bent.
  2. Extend your arms overhead with one hand over the other and your head between your upper arms.
  3. Push gently off the wall into a face-down glide at the surface.
  4. Alternate upward and downward kicks from your hips as you travel forward.
  5. Reach for the wall to finish the length.

Form cues

  • Keep your ankles loose.
  • Let your knees bend slightly.
  • Keep your ribs over your pelvis.
  • Exhale gently into the water.

Common mistakes

  • Bicycle-style kickingLet your knees follow your thighs rather than pulling them toward your belly.
  • Wide, splashy kicksUse a narrow kick with your feet staying close to the surface.
  • Looking forwardDirect your gaze toward the pool floor to keep your neck neutral and reduce hip sinking.

Safety

Fatigue or delaying a breath to preserve the streamline can lead to water inhalation and drowning. Forcing your arms overhead can also irritate your shoulders.

  • Practice in a lifeguarded pool with a clear lane.
  • Break streamline whenever you need air by rolling onto your back or standing in shallow water.
  • Never hyperventilate or turn the drill into a breath-holding challenge.
  • Stop at a secure support before fatigue makes it difficult to stay at the surface.

Choose a supported kick drill if you cannot comfortably float and recover for a breath, or an arms-at-sides version if the overhead position causes shoulder pain.

Muscles worked

Primary muscles

  • Hip Flexors

Secondary muscles

  • Calves
  • Core
  • Glutes
  • Hamstrings
  • Quadriceps

Equipment

  • Pool Lane Line (optional)

Sets and reps

Sets
4–6
Target
10–25 meters
Rest
30 sec

Start with a distance you can complete comfortably with breathing breaks as needed.

Variations