In PLAYERTEK+ there are 13 intensity metrics to choose from.

**Top Speed**

*Unit: Metres per second (m/s) or Milometers per hour (k/h) *

PLAYERTEK+ measures top speed as the maximum speed sustained for at least half a second.

For most players, 8.5 m/s (30.6 kmph) 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)*

Metres 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 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 moderate to slow walk for most of us).

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

**Accelerations/min**

The average number of acceleration efforts per minute of the session.

**Deceleration/min**

The average number of deceleration efforts per minute of the session.

**HR Load/min**

The average heart rate load per minute of the session.

**Sprint Dist/min**

The average sprint distance covered per minute of the session.

**Time in Red Zone**

The amount of time where heart rate was in zone 4 or zone 5.

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