Table 2. Descriptive statistics for gravity-based inclinometer and iPhone® app values.
| Instrument | Rater | Mean flexion ROMa ± SDb (Minimum value–Maximum value) | Mean extension ROMa ± SDb (Minimum value–Maximum value) |
|---|---|---|---|
| Gravity-based inclinometer | A | 52.30°± 5.82° (40.51°–68.32°) | 18.43°± 6.26° (5.20°–35.17°) |
| B | 51.90°± 4.07° (44.69°–60.21°) | 18.06° ± 6.16° (7.74°–33.18°) | |
| iPhone® app | A | 52.00° ± 6.21° (43.94°–70.12°) | 16.50° ± 5.97° (5.21°–34.14°) |
| B | 51.00° ± 6.18° (41.32°–66.11°) | 16.83° ± 5.87° (4.89°–35.07°) |
Notes.
a
ROM, Range of motion.
b
SD, Standard deviation.