Table 1. Detailed listing of all engineered features in our experiments. |
| Category |
Variable |
Description |
| Heart
rate |
mean, median,
standard deviation, minimum, maximum |
Session statistics |
| HR zones
1-9 |
Zones (%
of HRmax): <30, 30-39, 40-49, 50-54, 55-71, 72-81, 82-87,
88-92, >92. Calculated per Zone: Time spend per zone (absolute and relative),
time spend period per zone (mean, standard deviation, minimum, maximum) |
| Acceleration |
mean,
median, standard deviation, minimum, maximum, mean/median/absolute difference
min/max, interquartile range, negative/positive count, values above mean,
physical energy, mean resultant, signal magnitude area, area under curve
positive/negative. |
|
| Speed |
mean, median,
standard deviation, minimum, maximum, mean/median/absolute difference min/max,
interquartile range, positive count, values above mean, physical energy,
mean resultant, signal magnitude area, area under curve positive. |
|
| Speed
zones 1-5 |
Zones
(km/h [time threshold in seconds]): 0-9[5], 10-13[5], 14-19[5], 20-24[2],
?25[1] (Gualtieri et al. [21]). Calculated per Zone: Time spend per zone
(absolute and relative), time spend period per zone (mean, standard deviation,
minimum, maximum), mean/median/standard deviation/min/max/sum distance covered |
| High Speed
Running (HIR) by Coutts et al. (2010) |
Time[sec]/distance/percentage/count |
| Distance
per minute |
mean/median/standard
deviation |
| Derived
metrics |
TRIMP |
Training
impulse which takes into consideration the intensity of exercise (corresponding
to the heart rate intensity zone number) as calculated by the heart rate
(HR) and the duration (expressed in minutes) of exercise. Calvert et al.
(1976) |
| TRIMP
heart rates zone >4 |
Equal
to TRIMP but only with HR zones >4 |
| TRIMP heart
rates zone <5 |
Equal to
TRIMP but only with HR zones <5 |
| Duration |
Session
duration |
| PlayerLoad™ |
Magnitude
of rate of change of acceleration by Barret et al. (2014) |
|
|