Video summary
[하늘쌤테니스팩폭] 제17편 포핸드 레깅 선수들의 감 끝판왕 그리고 손목을 펴고 있는 포핸드
Main summary
Key takeaways
Overview
This is an instructional tennis lesson (Episode 17) focused on forehand “lagging”—and why many players misunderstand it as something they should do intentionally.
What “Lag” Really Means
The instructor explains (quoting Quintilian’s idea of “describe instead of just label”) that:
- Players often think “lag” means intentionally throwing the racket backward.
- In reality, lag is a natural byproduct of moving the racket forward quickly.
- The backward-looking position seen in slow motion happens because of motion/reaction, not because the player is deliberately pulling the racket back first.
Modern Forehand Mechanics (Examples)
He describes forehand mechanics commonly seen in modern players, referencing:
- Tiafoe
- Khachanov
- Taro Daniel
Key observations he makes:
- Many use a semi-western grip.
- The wrist/forearm often stays more aligned, which can make the swing appear “flatter.”
- Some players extend the wrist slightly during setup—but he argues this is mainly to return to the ready position quickly, not to manufacture lag.
The Core Drills / Sensation
He outlines the principle of “lag” as a repeatable feeling:
- Keeping the racket in an extended / bent-ready position helps you feel and repeat the sensation.
- When you swing forward fast, the racket naturally shifts slightly backward—that is what looks like lag in slow motion.
- The action is described as spring-like:
- snap the racket head forward,
- then recover position—rather than “throwing back” first.
Strategies for Wrist Positioning
The instructor compares different approaches:
- If a player keeps the wrist bent slightly backward, it may help avoid wobble and stabilize timing.
- If a player struggles with timing (or experiences racket wobble), they may adjust wrist posture—e.g., choose something straighter vs. slightly bent—to keep the action smooth.
He emphasizes:
- There is no single universally “right” form.
- Players use what’s most comfortable and effective during matches, but the goal is always to reduce unnecessary delay, not to intentionally “lag.”
Word Choice: Don’t Get Stuck on “Lagging”
He discourages focusing obsessively on the term “lagging”, calling it a taboo/trigger word in his group chat.
Instead, he suggests understanding “lag” as:
- You must pull the racket forward quickly,
- because the backward-looking motion is simply a reaction that appears when you swing.
Extra Biomechanical Note (Elbow Pain)
He adds an additional point (he says it’s common in Korea):
- Some teachers overemphasize holding a fixed elbow angle.
- Pros tend to avoid getting trapped there, because impact happens under high force, which can contribute to elbow pain.
Presenters / Sources
- Quintilian (referenced)
- Tiafoe (example player)
- Khachanov (example player)
- Taro Daniel (example player)
- Djokovic (mentioned as an example of less extreme wrist bending)