Which of the following is an example of an equipment advance in sports?

In the context of sports, an equipment advance refers specifically to innovations or improvements in the tools and materials used by athletes that enhance performance. High-tech fitness trackers exemplify this concept as they incorporate advanced technology to monitor and analyze various physical metrics, such as heart rate, distance, and calories burned. These devices allow athletes to gain valuable insights into their performance, enabling them to tailor their training programs more effectively.

The evolution of fast swimsuits, which emerged in the 2000s, also highlights how advancements in materials and design can lead to significant improvements in athletic performance. These swimsuits were crafted from innovative fabrics designed to reduce drag in the water, ultimately enhancing speed and efficiency for swimmers during competition.

While increased coach support and regular skill drills contribute greatly to an athlete's performance, they fall outside the category of equipment advancements. Instead, they relate more to training methods and support systems that improve skills and tactics rather than the physical tools athletes use during competition.