Early Vertical Forearm (EVF) Training Methods for the Catch Phase

Introduction

If high-elbow entry is the ticket to freestyle technique, then the Early Vertical Forearm (EVF) is the core code to advanced swimming efficiency. This technical concept, popularized by legendary coach Bob Bowman (Michael Phelps’ coach) and others, has gradually gained attention in swimming training circles across Taiwan in recent years. Simply put, EVF means getting the forearm into a vertical position as early as possible during the catch phase, so that the palm and forearm form a “large paddle surface” that applies maximum backward force to the water.

The Technical Principles of EVF

Traditional stroke instruction often focuses on “palm pulling,” while EVF technique emphasizes using the entire forearm (from elbow to fingertips) as a single propulsive surface.

Why is EVF more efficient?

When the forearm is perpendicular to the water surface, the propulsive area is 2–3 times greater than pulling with just the palm. According to fluid dynamics, propulsive force is proportional to contact area, so EVF generates greater propulsion with the same muscular effort.

The Key Role of the Elbow

The core of EVF technique lies in the high elbow catch: after the hand enters and extends, the elbow bends slightly outward and downward, the wrist presses down, and the forearm quickly rotates to a vertical position. This movement requires coordinated activation of the serratus anterior and the rotator cuff muscles, making it the most difficult technical element for many recreational swimmers to master.

EVF Phase-by-Phase Technical Breakdown

EVF Training Plan for Taiwanese Swimming Enthusiasts

Phase 1: Awareness Training (Recommended 2 weeks)

Sculling
This is the foundational EVF drill. Hold a pull buoy between your feet and scull your arms in a figure-8 pattern in front of your chest, feeling the water pressure on your palms and forearms. Many advanced swimming classes in Taiwan incorporate this drill; it is recommended to do 100–200 meters of sculling as a warm-up before each session.

Finger Paddles
Wear small finger paddles (smaller than regular paddles) to amplify the sensation of water on your palms. Be careful not to use oversized paddles, as they can lead to compensatory movement patterns.

Phase 2: Movement Building (Recommended 3–4 weeks)

Single-Arm Stroke with Kickboard
Hold a kickboard with one hand while performing a full freestyle stroke with the other, slowing down to 60% of normal speed, focusing on the feeling of the forearm “hanging” on the water.

Catch-Up Drill
The lead arm extends and waits for the trailing arm to enter the water before beginning its pull, forcing every stroke to fully execute a high-elbow catch. During open lane swim times at Taipei Municipal Swimming Pool or Kaohsiung Jhongjheng Swimming Pool, you can claim a lane for slow, focused practice.

Wall Push Simulation (Dry Land)
Push against a wall with both hands, simulating the EVF catch motion, and feel the activation sequence of the serratus anterior and latissimus dorsi.

Phase 3: Integration & Application (From Week 5 onward)

• Ratio Training: In every 200 meters, swim the first 50 meters at a slow technical pace (focusing on EVF), then the remaining 150 meters at normal speed, attempting to maintain the technique
• Visual Feedback: At Qingshui Swimming Pool (Taichung Qingshui Public Swimming Pool) or school outdoor pools with higher water clarity, have someone film an underwater side-view video to confirm your catch angle

Common EVF Myths Debunked

• “EVF requires a lot of strength”: False. EVF emphasizes efficiency—applying force in the right direction, not more force.
• “Only competitive athletes need EVF”: Anyone looking to improve swimming efficiency can benefit, especially triathletes, for whom EVF can significantly conserve energy in long-distance swimming.
• “EVF hurts the shoulders”: When performed correctly, EVF actually protects the shoulders; shoulder injuries are usually caused by improper technique (bending the elbow too early to pull).

Practical Tips

• Do 5 minutes of dry-land shoulder mobility warm-up before entering the water, including shoulder circles and external rotation exercises
• Record your technical sensations after each session and keep an improvement log
• Race footage of Taiwanese swimmers such as Huang Mei-Chien and Chang Ya-Ting can be found on YouTube; carefully observing their catch mechanics is excellent learning material
• Schedule underwater video recording every 2–4 weeks and compare progress against previous footage

Conclusion

Learning EVF technique is a gradual process—from awareness training to movement building, then to integration and application—requiring patience and sustained deliberate practice. Although Taiwan’s swimming environment is dominated by indoor pools, as long as you make purposeful use of every swim session for technical practice, mastering EVF is not out of reach. Remember, every correctly executed EVF stroke is an investment in efficiency.

Related Reading

• Early Vertical Forearm (EVF) Catch Technique: The Key to Freestyle Pull Trajectory
• Freestyle High-Elbow Catch (EVF) Fully Explained: How Early Vertical Forearm Lets You Advance 15% Further Per Stroke
• Freestyle High-Elbow Catch Fully Broken Down: The Mechanics Secrets from Entry to Push
• Freestyle High-Elbow Catch Technique: Muscle Activation Sequence and Common Error Analysis