Swimming
Backstroke with Fins
Backstroke with fins pairs alternating arm strokes with a fin-assisted flutter kick while you swim on your back. It trains swimming endurance and helps you practice body alignment and rotation.
- Intermediate
- Moderate injury risk
- Rest 30 sec
How to do it
- Put on snug-fitting swim fins while seated at the pool edge.
- Lower yourself into the water beside the wall.
- Push away from the wall on your back with your arms beside you.
- Start a small, continuous flutter kick from your hips.
- Sweep one arm over the water to enter above its shoulder, little finger first.
- Press water toward your feet with a bent elbow until your hand reaches your hip.
- Continue alternating arms through this stroke cycle for the prescribed distance.
- Take hold of the wall to finish your length.
Form cues
- Roll your shoulders and hips together
- Keep your ankles relaxed
- Let your head rest in the water
- Breathe regularly; don't hold your breath
Common mistakes
- Bicycle-style kickingKeep knee bend small so your fins sweep up and down rather than pedal through the water.
- Rushing the arm strokesUse a steady arm rhythm rather than chasing the extra speed your fins provide.
- Slapping the water on entryLet your hand slice into the water instead of striking it with a rigid arm.
Safety
Fins increase speed while you cannot see directly ahead, raising the chance of hitting a wall or another swimmer. Fatigue can compromise water safety, and forceful fin kicking can strain your ankles or calves.
- Use a lifeguarded pool and follow the lane's swimming direction.
- Establish your wall approach using backstroke flags or another reliable reference; slow down before reaching the wall.
- Start with short lengths at an easy pace before adding distance.
- Stop at the nearest safe support if you develop cramping, pain, or unusual breathlessness.
If you cannot comfortably float on your back and swim a pool length without fins, practice those skills in supervised shallow water first.
Muscles worked
Primary muscles
Secondary muscles
Equipment
- Backstroke Flags (optional)
- Pool Lane Line (optional)
- Swim Fins
Sets and reps
- Sets
- 4–6
- Target
- 25–50 meters
- Rest
- 30 sec
Choose a distance you can complete with controlled strokes rather than swimming for maximum speed.