Table 1.
Comparison of protocols used in TTDPM, JPR, and AMEDA proprioception tests.
| Variable | TTDPM | JPR | AMEDA |
|---|---|---|---|
| Movement type | Passive | Passive/active | Active |
| Movement velocity | Very slow | Slow/normal | Normal |
| Practice/familiarization trial number | Unfixed | Unfixed | Fixed, 15 trials |
| Testing trial number | 3–5 correct answers | Usually 3–5, up to 10 trials | 50 |
| Movement difference between familiarization and testing | No | Depends on the types of movement used in target joint position establishment and reproduction | No |
| Proprioceptive information | Largely movement information | Depends on whether a physical stop is used during target joint position establishment | Both movement and position information |
| General vision | Blocked | Blocked | Available |
| Audio | Blocked | Available | Available |
| Posture | Usually lying or sitting | Usually lying or sitting | Standing |
| Constrain | Usually constrained | Usually constrained | No constrains |
| Weight-bearing | Usually none or partial weight-bearing | None, partial or normal weight-bearing | Normal weight-bearing |
| Attention requirement | Very high | High | Medium-high |
| Memory requirement | Very low | High | Low (recall) |
| Measurement | Difference between the start position and responded position | Error between the target position and performed position | AUC score |
| Unit | Degree | Degree | AUC score |
| Testing duration | Up to 6 h | Depends on the number of trials used | 10 min |
Abbreviations: TTDPM = threshold to detection of passive motion; JPR = joint position reproduction; AMEDA = active movement extent discrimination apparatus; AUC = area under the curve.