
In badminton, repulsion refers to the speed at which the shuttle bounces off the racket after contact. It is influenced by the tension of the strings, with lower tension resulting in higher repulsion due to the softer string bed. The choice of string and tension is essential for players to achieve the desired level of repulsion, speed, and power in their shots. Repulsion is particularly crucial for beginners to generate the power needed for effective shots. Additionally, the softness of the string and shaft can impact repulsion by reducing energy loss during contact with the shuttle.
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What You'll Learn

Repulsion is the speed at which the shuttle bounces off the racket
Repulsion in badminton refers specifically to the speed at which the shuttle bounces off the racket. This is influenced by the tension of the strings, with lower tension resulting in higher repulsion. For example, a racket with lower string tension will allow the shuttle to bounce off the racket faster than a racket with higher string tension.
The relationship between string tension and repulsion is complex. While lower string tension generally increases repulsion, the specific characteristics of the strings themselves also come into play. Some strings have greater repulsion characteristics, but these can diminish with increased tension. Therefore, a string with high repulsion potential might perform better at a lower tension, allowing it to showcase its repulsion capabilities more effectively.
It's worth noting that the choice of strings and tension should be based on personal preference and playing style. While some players prioritise repulsion for more powerful shots, others might focus on control or other aspects of their game. Additionally, the level of skill and technique of the player also plays a significant role in their performance, and proper technique can often be more advantageous than solely relying on equipment with higher repulsion characteristics.
For beginners, it is generally recommended to start with lower string tension, typically in the range of 17 to 20 lbs. As players progress and improve their skills, they can gradually increase the string tension to fine-tune their performance. Advanced and professional players typically use higher string tensions, but it's important to build up to these levels to avoid injuries and ensure a player's technique is solid before introducing higher tension setups.
In conclusion, repulsion in badminton is a crucial factor that influences the speed and power of shots. By understanding the relationship between string tension and repulsion, players can make informed choices about their equipment setup to optimise their performance on the court.
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Lower string tension increases repulsion
In badminton, repulsion refers to the ability of the strings on a racket to absorb and return the energy of a shuttlecock impact. When a shuttlecock strikes the strings, the strings compress and then snap back, returning energy to the shuttlecock and propelling it forward. This phenomenon is crucial to the game as it affects the power and speed with which a player can hit the shuttlecock.
Lower string tension in a badminton racket increases repulsion. This is because lower string tension creates a more elastic and flexible string bed, allowing the strings to stretch further and store more potential energy upon impact with the shuttlecock. This increased elasticity results in a higher repulsion force, providing greater power and speed to your shots.
When the strings are at a lower tension, they can deform more easily when coming into contact with the shuttlecock. This deformation allows the strings to wrap around the shuttlecock momentarily, providing a larger sweet spot and increasing the duration of contact. As the strings snap back to their original position, they transfer more energy to the shuttlecock, resulting in increased repulsion and faster shot speeds.
Additionally, lower string tension can provide more grip on the shuttlecock during impact. This grip effect is due to the increased friction between the strings and the shuttlecock feathers or synthetic skirt. By gripping the shuttlecock for a fraction of a second longer, the strings can impart more spin and control, allowing players to execute deceptive shots and place the shuttlecock more accurately within the court boundaries.
It is important to note that while lower string tension increases repulsion, it also reduces control to some extent. Players seeking more power and speed in their shots often prefer lower string tensions, while those prioritizing control and precision may opt for slightly higher tensions. Finding the right balance between repulsion and control is essential for a player's performance and is often a matter of personal preference and playing style.
Players can benefit from understanding the relationship between string tension and repulsion to make informed decisions about their equipment setup. Experimenting with different string tensions within the recommended range for their racket can help players find the sweet spot that maximizes their power, control, and accuracy on the court. Regular string maintenance and replacement are also crucial to maintaining consistent performance and repulsion characteristics over time.
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High repulsion strings give more power to shots
The choice of badminton strings and their tension is a highly personal one, with many factors influencing an individual's decision. One of the key considerations is the level of repulsion, or the speed at which the shuttle bounces off the racket after contact. High repulsion strings enable the shuttle to bounce off the racket faster, thus giving more power to shots.
The relationship between string tension and repulsion is such that lower tension generally increases repulsion. This is because a softer string bed allows for better energy absorption and transfer into the shuttle. Therefore, a lower-tension string with high repulsion characteristics can give greater power to shots. However, it is important to note that the intrinsic elastic property of the string material also matters; a very soft string may not be able to effectively transfer energy and could result in a shaking feeling when hitting the shuttlecock, leading to energy loss and reduced power.
When choosing a string, it is recommended to consider both the string tension and its repulsion characteristics. While a string with high repulsion may be more powerful at lower tensions, this advantage can diminish as tension increases. For example, a string with high repulsion characteristics may perform optimally at a tension under 25 lbs, providing a larger sweet spot and allowing the string to showcase its full potential. Therefore, it is important to test different strings and tensions to find the combination that suits an individual's playing style and technique.
For beginners, it is generally recommended to start with a lower string tension, typically between 17-20 lbs, as this provides a good balance between power and control while reducing the risk of injury. As players progress and improve their technique, they can gradually increase the string tension to fine-tune their playing experience and further enhance the power of their shots.
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Repulsion is almost an antonym to hardness
The choice of badminton racket and string tension can greatly affect a player's performance. Repulsion is a term used to describe the speed at which a shuttle bounces off the racket after contact. A lower tension in the strings results in more repulsion due to the softer string bed. This means that the shuttle will bounce off the racket faster.
On the other hand, a softer string or shaft can better absorb the energy of the impact, reducing the shaking feeling and allowing for more control. This is why lower string tension, which results in a softer string bed, increases repulsion.
However, it is important to note that the intrinsic elastic property of the material also matters. For example, some strings with greater repulsion characteristics can diminish with increased tension. This is why it is crucial to consider both string choice and tension when setting up a badminton racket.
Additionally, the term "power" is often used interchangeably with "repulsion". However, some argue that power refers to momentum, while repulsion is about speed. This distinction may vary depending on the region and individual players' interpretations.
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Repulsion characteristics can diminish with increased tension
In badminton, repulsion refers to the speed at which the shuttle bounces off the racket after contact. It is the ability of the string to bounce the shuttle back. A lower string tension increases repulsion in the racquet, giving more power to make a shot.
However, it is important to note that increased tension does not always lead to better performance. While it is a common misconception that tighter strings lead to more powerful shots, this is not always the case. In fact, high string tension can increase the chances of injuries to the arm, elbow, and triceps muscle.
The appropriate string tension depends on the player's skill level and the type of shots they want to make. For beginners, a lower string tension is recommended as it provides more repulsion and makes it easier to generate power for good shots. As players progress to an intermediate level, they can gradually increase the string tension to fine-tune their control and power.
Additionally, the choice of string tension should consider the player's technique, including their contact point, grip, and swing. Involving the hips, abs, and fingers correctly can also impact the power and repulsion characteristics.
Therefore, while it is true that lower tension increases repulsion, it is a nuanced aspect of badminton racket setup, and players should carefully consider various factors to find the optimal tension for their specific needs.
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Frequently asked questions
Repulsion in badminton refers to how fast the shuttle bounces off the racket after contact.
Lower string tension increases repulsion, and higher tension diminishes it.
Power is how easy it is to generate power with a string or racket, while repulsion is the speed at which the shuttle bounces off.











































