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APDS9960
Proximity + Light
Sport-Specific Performance Metrics
Distance Covered
Total distance per match — gold standard metric for midfielder vs. forward vs. defender load
Sprint Count
High-intensity sprint bouts logged — tracks anaerobic capacity over a 90-minute match
Sprint Top Speed
Peak velocity reached — compare to elite benchmarks (>21 mph for pros)
Player Load
Training-grade movement load context for coach and parent review
Direction Changes
Lateral cuts and pivots — agility signature for positional comparison
Effort / Work Rate
Session intensity as % of max — manages load across congested fixture schedules
Temperature
Environmental heat load — track Heat Stress Index for safe summer training
Elevation
Altitude gain during session — altitude training camps and hill-run quantification
■ FULL SENSOR READOUT
| Metric |
Source Sensor |
What It Tells You |
| Player Load |
LSM6DS3TR-C Accel |
Total mechanical work done |
| Sprint Count |
LSM6DS3TR-C Accel |
Explosive effort frequency |
| Sprint Top Speed |
LSM6DS3TR-C Accel+Gyro |
Peak velocity estimate |
| Jump Count |
LSM6DS3TR-C Accel |
Vertical effort frequency |
| Jump Height (cm) |
LSM6DS3TR-C Accel |
Vertical power output |
| Impact Events |
LSM6DS3TR-C Accel |
Contact load detection |
| Direction Changes |
LSM6DS3TR-C Accel+Gyro |
Agility / cut load |
| Rotation Speed (deg/s) |
LSM6DS3TR-C Gyro |
Rotational power |
| Effort / Work Rate % |
LSM6DS3TR-C Accel+Gyro |
Session intensity index |
| Distance (m) |
LSM6DS3TR-C Accel |
Estimated total movement |
| Temperature (°F) |
SHT31 |
Environmental heat load |
| Humidity % |
SHT31 |
Heat stress context |
| Altitude / Elevation (m) |
BMP280 |
Vertical displacement |
| Barometric Pressure |
BMP280 |
Environmental baseline |
| Compass Heading |
LIS3MDL Magnetometer |
Movement orientation |
| Ambient Light Level |
APDS9960 |
Indoor vs outdoor context |
| Worn Detection |
APDS9960 Proximity |
Auto session start/stop |
⚖ NFHS RULE STATUS
NFHS Soccer Rule 4-1 governs player equipment. BLE-only sensors with no display and no GPS are increasingly reviewed under protections. Approval from the referee and home state association required.