Table 3 Description of Digital Goniometer Data Columns and Corresponding Units.
Column | Unit | Description |
|---|---|---|
Timestamp | Seconds (s) | Experiment runtime |
q0 | Quaternion | Imaginary number satisfying Hamilton’s equation24. |
q1 | Quaternion | Imaginary number satisfying Hamilton’s equation24. |
q2 | Quaternion | Imaginary number satisfying Hamilton’s equation24. |
q3 | Quaternion | Imaginary number satisfying Hamilton’s equation24. |
ROM | Degrees (°) | Limb segment angular motion. |
Roll | Degrees (°) | Rotation around the longitudinal axis. |
Pitch | Degrees (°) | Rotation around the transverse axis. |
Yaw | Degrees (°) | Rotation around the vertical axis. |
accX | Metres per second squared (m/s2) | Acceleration in the X axis provided by the accelerometer. |
accY | Metres per second squared (m/s2) | Acceleration in the Y axis provided by the accelerometer. |
accZ | Metres per second squared (m/s2) | Acceleration in the Z axis provided by the accelerometer. |
gyrX | Degrees per second (°/s) | Rotation measurement around the X axis as a scalar value. |
gyrY | Degrees per second (°/s) | Rotation measurement around the Y axis as a scalar value. |
gyrZ | Degrees per second (°/s) | Rotation measurement around the Z axis as a scalar value. |
magX | Miilitesla (mT) | Measurement of the magnetic field for the X axis. |
magY | Miilitesla (mT) | Measurement of the magnetic field for the Y axis. |
magZ | Miilitesla (mT) | Measurement of the magnetic field for the Z axis. |
