What is the square on the back of rugby shirts?

Question: What is the square on the back of rugby shirts?

The square on the back of rugby shirts is a GPS tracker. It is used to track the players' movements and performance during matches and training. The data collected by the GPS trackers can be used to analyze the players' performance, identify areas for improvement, and prevent injuries.

GPS trackers are typically small and lightweight, and they are worn in a pocket on the back of the rugby shirt. They contain a GPS receiver, a battery, and a transmitter. The GPS receiver tracks the player's location, while the transmitter sends the data to a central receiver.

The data collected by the GPS trackers can be used to track a variety of metrics, including:

• Distance traveled
• Speed
• Acceleration
• Deceleration
• Impact forces
• Heart rate
• Workload

This data can be used to analyze the players' performance in a number of ways. For example, coaches can use the data to see how far the players are running, how fast they are sprinting, and how much impact they are absorbing. This information can be used to identify areas where the players need to improve, such as their speed, endurance, or tackling technique.

GPS trackers can also be used to prevent injuries. By tracking the players' movements and workload, coaches can identify players who are at risk of injury. This information can be used to develop training programs that help to reduce the risk of injury.

GPS trackers are becoming increasingly common in rugby and other sports. They provide valuable data that can help coaches to improve the performance of their players and reduce the risk of injury.

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