Introduction:
Sportsmen often use shoes with spikes to increase the friction between their feet and the ground. This allows them to have better traction and stability, which is crucial for performing well in various sports and activities. In this answer, we will explore why sportsmen use spiked shoes and how they help in increasing friction.

The Role of Friction:
Friction is a force that resists the relative motion between two surfaces in contact with each other. In sports, the grip or traction between the athlete's feet and the ground is essential for optimal performance. Friction plays a vital role in providing this grip, as it allows the athlete to push off the ground and change direction effectively.

Spikes and Friction:
Spiked shoes are designed with small metal or plastic spikes on the sole, strategically placed to maximize the contact area with the ground. These spikes increase the friction between the shoe and the ground, offering several benefits to the athletes:

1. Better Traction: The spikes dig into the ground, increasing the grip and preventing slippage. This is particularly useful in sports like sprinting, where athletes need to generate maximum force to propel themselves forward.

2. Enhanced Stability: The increased friction provided by the spikes improves stability, helping athletes maintain balance during quick turns, cuts, or jumps. This is crucial for sports such as soccer, basketball, or tennis, where sudden changes in direction are common.

3. Improved Acceleration: The enhanced grip allows athletes to generate more force against the ground, resulting in improved acceleration. This is beneficial in sprinting events or sports that require quick bursts of speed, such as track and field or football.

4. Reduced Injury Risk: Spiked shoes can also help reduce the risk of injuries, as they provide better stability and prevent slipping. This is particularly important in sports that involve running on various terrains or in adverse weather conditions.

Conclusion:
The use of spiked shoes by sportsmen is indeed true. These shoes with spikes increase the friction between the athlete's feet and the ground, offering better traction, stability, acceleration, and reducing the risk of injuries. By maximizing the grip, spiked shoes allow athletes to perform at their best and excel in their respective sports.