Improving Bilateral Breathing in Swimming: A Progressive Plan for Bilateral Ventilation Training

Introduction

Ask Taiwanese swimming enthusiasts, “Which side do you habitually breathe on?” and over 90% will give a clear answer: “I’m used to breathing on the right” or “I can only breathe on the left.” While unilateral breathing has no immediate dangers, maintaining it long-term gradually leads to technical asymmetry, manifesting as: slight body rotation during swimming, uneven pulling force between the two sides, a tendency to drift off course in open water, and overuse of the shoulder on the habitual breathing side. Bilateral breathing training is the fundamental solution to these problems.

Why Is Bilateral Breathing So Important?

Technical Symmetry

Swimming is a highly symmetrical sport, and any asymmetry increases drag and reduces propulsion. Bilateral breathing forces swimmers to develop equal stroke technique on both sides, and after long-term training, technical symmetry improves significantly.

Straight-Line Swimming in Open Water

When swimming in open water such as Chengcing Lake in Taichung, Taitung’s Living Water Lake, or Liyu Lake, unilateral breathers tend to gradually drift toward their breathing side because the stroke on the non-breathing side is weaker. Bilateral breathers, with more symmetrical strokes on both sides, generally have better straight-line swimming ability.

Oxygen Management Flexibility

Bilateral breathers can flexibly switch their breathing side during races or training depending on the situation—for example, in open water swimming, they can choose to breathe away from the sun or adjust based on the direction of the current.

Key Technical Points of Bilateral Breathing

Bilateral breathing typically follows a “breathe every three strokes” standard (left-right-left-breathe, right-left-right-breathe), though some athletes use 5-stroke breathing or asymmetric 2-3 patterns.

Six-Week Progressive Bilateral Breathing Training Plan

Week 1: Building Awareness of the Weak-Side Breath

• During the 200-meter warm-up in each session, intersperse 25-meter “weak-side-only breathing” drills
• Slow down to 60% of normal speed, focusing on breathing technique quality rather than speed
• After each weak-side breath, feel whether the mouth clears the water smoothly; if water is swallowed, slow down immediately

Common Weak-Side Breathing Problems:

• Face cannot fully rotate out of the water → insufficient body rotation
• Mouth half-submerged during the breath → insufficient head rotation angle
• Unable to smoothly return to the entry position after breathing → arm timing needs adjustment

Week 2: 3-Stroke Breathing Practice

Begin attempting 3-stroke breathing on each length. If you feel significant breath-holding discomfort (more than 3 seconds of unpleasantness), switch to a 2-2-3 pattern (two lengths of unilateral breathing followed by one length of bilateral) to let the body gradually adapt.

Weeks 3 to 4: Stabilizing 3-Stroke Breathing

• Use 3-stroke breathing for 50% of training volume
• Count stroke counts and compare whether the distance per stroke on the strong and weak sides is similar (closer values indicate the technique is becoming more symmetrical)
• If the difference between the two sides exceeds 20%, add extra stroke technique drills for the weak side

Weeks 5 to 6: Integration and Application

• Use 3-stroke breathing throughout the main set, switching back to 2-stroke for sprint segments
• Attempt to maintain 3-stroke breathing continuously over longer distances (400–800 meters)
• During technique sets at pools across Taiwan, observe whether your swimming direction is straighter than before

Supplementary Drills for Improving Weak-Side Breathing

Method 1: Weak-Side-Only Technique Swimming

Swim an entire 25-meter length breathing only to the weak side, giving the weak-side movement ample stimulation. Do this 2–3 times per week, 100–200 meters per session.

Method 2: Weak Side with a Pull Buoy

Hold a pull buoy between your legs (eliminating kick interference) and focus on coordinating the weak-side arm pull and head rotation for breathing.

Method 3: Side Kicking with Breathing

When rotating the body toward the weak side, practice having the mouth just clear the water to breathe. This drill effectively improves the coordination between body rotation and breathing timing.

Practical Advice

• Your speed will inevitably drop in the early stages of bilateral breathing training; this is normal, and speed typically recovers or even surpasses original levels after 3–4 weeks
• When swimming in Taiwan’s open water (such as Chengcing Lake or Liyu Lake), pay special attention to whether you drift in a fixed direction—this is a good opportunity to assess breathing symmetry
• Bilateral breathing ability is crucial for triathletes maintaining direction in open water; it is recommended that all triathletes list bilateral breathing as an essential skill
• Try the “straight-line test”: swim 25 meters with your eyes closed and observe which side you drift toward—this visually reveals the degree of technical asymmetry

Conclusion

Bilateral breathing training is a technical improvement process that requires patience. Through a systematic six-week plan, most swimming enthusiasts can build basic bilateral breathing ability. Starting with today’s swim session, make weak-side breathing no longer your technical shortcoming, but rather the cornerstone of your swimming symmetry.

Related Reading

• Swimming Breathing Rhythm: Training Timing and Long-Term Benefits of Bilateral Breathing
• Freestyle Breathing Technique: Training Methods and Race Applications for Bilateral Breathing
• Learning Methods and Pros and Cons of Freestyle Bilateral Breathing
• Breathing Side Selection and Cervical Spine Protection: The Health Logic of Bilateral Breathing