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How to Improve Flexibility for Better Backstroke

Writer's picture: SG Sink Or SwimSG Sink Or Swim

Backstroke is a graceful yet technically demanding stroke that relies heavily on fluid body rotation, shoulder mobility, and core stability. While strength and endurance are vital, flexibility is often the missing piece that can transform your backstroke efficiency, reduce drag, and prevent injuries.


Improving flexibility enhances your stroke length, body position, and shoulder rotation, all while reducing muscle tension that could hinder your performance.This article will explore the key areas requiring flexibility for backstroke swimmers and provide specific stretching routines to elevate your stroke performance.


Why Flexibility Matters for Backstroke Swimmers

1. Enhances Shoulder Mobility

The arms drive propulsion in backstroke, with each arm rotating above and below the water in a continuous motion.Limited shoulder mobility can disrupt this movement, increasing resistance and causing shoulder discomfort.

Flexibility in the shoulders allows for:

  • A higher, more relaxed arm recovery over the water.

  • Deeper catch and pull phase, improving stroke length.

  • Reduced risk of shoulder strain.


2. Improves Body Rotation

Backstroke requires fluid body rotation around the spine.A rigid core and tight torso limit this rotation, forcing swimmers to rely more on their arms, leading to fatigue and slower speeds.

Improving flexibility in the core and hips enables:

  • Smoother body roll, reducing drag.

  • More efficient stroke extension and pull-through.

  • Better balance and water position.


3. Supports Streamlined Position

An optimal backstroke body position involves:

  • Hips high on the water’s surface.

  • Chest open, neck relaxed, and arms moving freely.


Tight hamstrings, hip flexors, or lower back muscles can cause the hips to sink, increasing drag and slowing you down.

Increased flexibility promotes a straighter, more hydrodynamic bodyline, allowing you to cut through the water with less resistance.


Key Areas to Focus on for Backstroke Flexibility

Body Area

Flexibility Benefits for Backstroke

Shoulders & Chest

Facilitates smooth arm recovery and prevents shoulder injury.

Thoracic Spine (Upper Back)

Supports body rotation and maintains streamlined posture.

Core (Obliques, Abdominals)

Enhances body roll and stability during the stroke.

Hips & Hip Flexors

Helps keep hips high and allows fluid rotation.

Hamstrings & Lower Back

Maintains straight leg position and prevents sinking hips.

Stretching Routine for Better Backstroke Flexibility

1. Shoulder Flexibility & Mobility

🏊‍♂️ Arm Across Chest Stretch

  • Targets: Rear deltoid, shoulder joint.

  • How to Do It:

    • Bring one arm across your chest.

    • Use the opposite hand to gently pull it toward your body.

    • Hold for 20-30 seconds, repeat both arms.

🏊‍♂️ Wall Shoulder Stretch

  • Targets: Shoulders, chest.

  • How to Do It:

    • Stand sideways near a wall.

    • Place your hand on the wall behind you with your arm straight.

    • Turn your body slightly away until you feel a stretch across your chest and shoulder.

    • Hold for 20-30 seconds, switch sides.

2. Thoracic Spine & Upper Back Flexibility

🏊‍♂️ Cat-Cow Stretch

  • Targets: Upper back, spine.

  • How to Do It:

    • Start on all fours.

    • Arch your back up (cat pose), then lower your belly while raising your head (cow pose).

    • Repeat slowly for 8-10 cycles.

🏊‍♂️ Thread the Needle Stretch

  • Targets: Thoracic spine, shoulders.

  • How to Do It:

    • Begin on all fours.

    • Slide your right arm under your left arm, twisting your torso, resting your right shoulder on the floor.

    • Hold for 20-30 seconds, switch sides.

3. Core & Side Body Flexibility

🏊‍♂️ Standing Side Bend

  • Targets: Obliques, core.

  • How to Do It:

    • Stand tall, reach your right arm overhead, lean to the left.

    • Feel the stretch along your right side.

    • Hold for 20-30 seconds, switch sides.

4. Hip Flexors & Lower Body Flexibility

🏊‍♂️ Lunge Hip Flexor Stretch

  • Targets: Hips, hip flexors.

  • How to Do It:

    • Step into a lunge position, with one knee on the floor.

    • Push hips forward until you feel a stretch in the hip of the back leg.

    • Hold for 20-30 seconds, switch sides.

🏊‍♂️ Hamstring Stretch

  • Targets: Hamstrings, lower back.

  • How to Do It:

    • Sit with one leg extended and the other foot placed against your inner thigh.

    • Reach toward your toes.

    • Hold for 20-30 seconds, switch sides.


When and How Often to Stretch

  • Stretch after every swim session as muscles are warm and more receptive to lengthening.

  • Aim for at least 3-4 flexibility sessions per week, even on rest days.

  • Hold each stretch for 20-30 seconds, repeat 2-3 times per muscle group.


Additional Tips for Backstroke Flexibility Progress

Combine Dynamic and Static Stretching:

  • Dynamic stretches before swimming (e.g., arm swings, shoulder circles).

  • Static stretches after swimming to lengthen muscles and improve flexibility.

Use Resistance Bands:

  • Resistance bands add gentle tension during shoulder and chest stretches, enhancing range of motion.

Foam Rolling:

  • Rolling through the upper back, shoulders, and hips releases tightness, improving mobility for better body rotation.

Be Consistent:

  • Flexibility gains take time.

  • Daily small efforts yield long-term improvements.


Final Takeaways: How Flexibility Unlocks a Faster, Smoother Backstroke

Shoulder Mobility Enhances Arm Recovery: Allows a smooth, wide recovery over water and reduces tension.

Core & Hip Flexibility Enables Rotation: Supports fluid body roll, improving stroke length and reducing drag.

Loose Hamstrings Keep Hips High: Maintains a streamlined body position, reducing resistance.

Regular Stretching Builds Longevity: Prevents injuries, improves stroke efficiency, and supports peak performance.


Flexibility is the hidden key to unlocking your backstroke potential.Combine consistent stretching with technical swim drills, and you’ll move through the water with greater ease, speed, and power.

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