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Normative Values Reference
These benchmarks support clinical comparison across range of motion, proprioception, and motor control tests.
Based on measurements of 35 asymptomatic subjects aged 18-50 years (female/male = 18/17, age = 34.2 ± 8.1 years).
Range of Motion Test
|
Movement |
Mean |
SD |
|---|---|---|
|
Flexion |
56.5° |
10.3° |
|
Extension |
69.5° |
11.8° |
|
Rotation Left |
71.9° |
7.4° |
|
Rotation Right |
74.3° |
8.8° |
|
Lateral Flexion Left |
42.9° |
7.4° |
|
Lateral Flexion Right |
43.0° |
7.1° |
Joint Position Error Test
Mean Error (all directions): 4.0° (SD: 2.0°)
The Butterfly Test - Deviation
|
Level |
Mean |
SD |
|---|---|---|
|
Easy |
0.8° |
0.2° |
|
Medium |
1.3° |
0.3° |
|
Hard |
2.0° |
0.4° |
The Butterfly Test - On Target Ratio
|
Level |
Mean |
SD |
|---|---|---|
|
Easy |
78% |
6% |
|
Medium |
48% |
12% |
|
Hard |
27% |
8% |
Contact neckcare@neckcare.com for further information.