Reliability of novice and experienced physiotherapists using the normalized navicular height truncated and the foot posture index-6 for classifying static foot posture in adults.

Only 30 healthy asymptomatic young adults were tested, and 21 were female, so the results may not apply to males, children, older adults, or people with foot pain or pathology. The sample had few high-arched or extremely high-arched feet, so reliability for those categories is less certain. Only the right foot was measured, so the findings may not transfer to routine both-foot assessment. The novice received 3 hours of training and supervised practice on 30 other individuals; less training may not be reliable.

The authors declared no conflicts. The study was funded by Khon Kaen University's Research Center in Back, Neck, Other Joint Pain and Human Performance (BNOJPHC01/2561).

Do not conclude that any novice physiotherapist can reliably classify foot posture without training, or that these findings apply to patients with foot pain, older adults, or children; the study tested a novice after 3 hours of training and supervised practice in 30 healthy young adults, mostly female, and only the right foot.