Catapult One has 5 Volume Metrics:
See also Intensity Metrics (Top Speed / Distance per Minute / Power Score / Work Ratio / Player Load / Max Acceleration / Max Deceleration)
Distance
Units: Metres (m), Kilometres (km), Yards (yds), Miles
Total distance provides a good global representation of the volume of exercise (walking, running) and is also a simple way to assess an individual’s contribution relative to a team effort.
Typically, during a 90-minute football match, a top-level athlete will cover between 9 and 11 km. Distances in rugby matches range from 5km to 8km and are strongly influenced by position. In GAA games of 60-minute duration, the distance covered can anywhere from 5 to 10km.
Sprint Distance
Unit: Metres (m), Yards (yds)
In Catapult One, by default sprinting is defined as running at speeds above 5 metres per second.
Sprint distance is the sum of the distance covered when in speed zones 4 and 5.
Greater amounts of sprinting typically signify a higher level of football fitness. During football (soccer) and GAA matches, players regularly exceed 1000 metres of sprinting.
Power Plays
Unit: A simple count
A power play is defined as a significant action (such as acceleration or a high speed running event) in which your power output is above 20 watts per kilogram for more than one second.
Counting power plays gives you an indication of the number of intense actions you were involved in, which are more physically demanding.
Energy
Unit: Calories (Kcal)
A measure of how much energy is expended during a game or training session. The calculation is based on the player’s weight and, typically this is 1,500 kcal per game for a professional footballer.
Impacts
Unit: A simple count
Accelerometer data measured at 400 times per second in each of the three-axis is used to
detect impacts that rate above 5g (49 m/s2). As such, impacts are considered significant
events that exclude footsteps during walking and running.
This impact count usually correlates to the number of large hits a player experiences during a contact game (typically collisions and tackles in rugby).