PMID: 16619101Apr 19, 2006Paper

Reliability of first ray position and mobility measurements in experienced and inexperienced examiners.

Journal of Athletic Training
Crystal ShirkMia Erickson

Abstract

Neither reliability nor validity data exist for the Root method of clinically assessing first ray position or mobility by experienced and inexperienced examiners. To determine intrarater and interrater reliability for first ray position and mobility measurements in experienced and inexperienced examiners. Single-blind prospective reliability study. Physical therapy clinic. Four examiners, 2 experienced and 2 inexperienced, obtained first ray position and mobility measurements. Both feet of 36 subjects (14 males, 22 females) were measured. Each examiner evaluated first ray position and mobility for each of the subjects' feet on 2 separate occasions using the manual assessment techniques described by Root. First ray position (normal, plantar flexed, dorsiflexed) and mobility (normal, hypermobile, hypomobile) decisions were made. We calculated kappa correlation coefficients for intrarater and interrater reliability. For position, intrarater and interrater reliability ranged from .03 to .27 for all examiners, experienced and inexperienced. For mobility, intrarater and interrater reliability ranged from .02 to .26 for experienced, inexperienced, and experienced/inexperienced. The percentage agreement (P(O)) values for all examiners ...Continue Reading

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