2. 1 * Charge sensors completely (couple of hours) * Do not recharge until charge is low Using sensors for the first few times

3. 2 * Sensors do not have to be fully charged (15 minutes enough for a few trials) * When fully charged, sensors can function for 3-4 h After using the sensors a few times When not connected, sensors will shut off after 5-30 min to save battery charge

4. 3

5. 4

6. 5 Pocket for the gyroscope Velcro straps 3M Dual Lock tape to hold the sensor

7. 6 To attach the head sensor 1- Place the head bumper

8. 7 2- Attach the sensor to the 3M Dual Lock tape To attach the head sensor

9. 8 Alternative for the head bumper Attach the sensor to the halter

10. 9

11. 10 To attach the pelvic sensor 1- Make the horse stand squarely find dorsal midline check for pelvic symmetry

12. 11 To attach the pelvic sensor 2- Locate the dorsal spinal processes

13. 12 To attach the pelvic sensor 3- Attach a piece of 3M Dual Lock tape over the sacral tuberosities

14. 13 To attach the pelvic sensor 4- Attach the sensor to the 3M Dual Lock tape

15. 14 To attach the pelvic sensor 5- Cover the sensor with tape

16. 15 To attach the sensor to the right front limb 1- Attach the pastern wrap

17. 16 How to attach the sensor to the right front limb 2- Attach the sensor to the pastern wrap

18. 17 How to attach the sensor to the right front limb 3- Cover half of the wrap with an elastic adhesive tape

19. 18 Long range Bluetooth receiver

20. 19 Ready to collect data