Catapult One has 7 Intensity Metrics, here is a brief explanation on what they mean and how they are calculated:

**Top Speed**

*Unit: Metres per second (m/s), Kilometres per hour (km/h), Miles per hour (mph), Yards per minute (yd/min)*

Catapult One measures top speed as the maximum speed sustained for at least half a second.

For most players, 8.5 m/s (30.6 km/h) is considered fast. However, Arjen Robben

has exceeded 9.5 m/s while Usain Bolt regularly exceeds 11 m/s.

**Distance per Minute**

*Unit: Metres per minute (m/min), Miles per minute (miles/min), Yards per minute (yd/min)*

Meters per minute give an overall good representation of how hard and intensely you have worked.

Professional players will reach between 100-120 m/min in a typical game.

**Power Score**

*Unit: Watts per kilogram (w/kg)*

Power score measures the power output used per kilogram of your weight. It is a useful tool to gauge the intensity of training drills where a high work rate within a small area is evident.

Small-sided games (SSG) are considered intense when the Power Score is above 10 w/kg. In amateur football, values of 7 to 8 are more normal.

**Work Ratio**

*Unit: Percentage (%)*

This is defined as the percentage of total time during which the player was performing some work. Work is defined as walking or running at speeds higher than 1.5 m/s (that’s a moderate to slow walk for most of us).

The work ratio, therefore, indicates the amount of time a player is working compared to resting. For a standard game or a small-sided drill.

**Player Load**

Player Load measures the total load on a player’s body in a session or game. It is a total of the load through running activity and high-impact activity.

**Max Acceleration**

*Unit: Meters per second per second (m/s/s)*

Max Accelerations are the rate that tracks how quickly an athlete can accelerate greater than the acceleration threshold for at least 1 second.

**Max Deceleration**

*Unit: Meters per second per second (m/s/s)*

Max Decelerations are the rate that tracks how quickly an athlete can decelerate greater than the acceleration threshold for at least 1 second.