Ruth, S., & Kegerreis, S. (1992). Facilitating cervical flexion using the Feldenkrais Method: Awareness Through Movement. Journal of Sports and Physical Therapy, 16(1), 25-29

Abstract:
Feldenkrais methods appear to be gaining popularity and utilization by physical therapists. The need for scientific justification of their usage is indicated. The purpose of this study was to quantify the results of a Feldenkrais method -- Awareness Through Movement -- involving a neck flexion task. The study examined 30 normal subjects to determine if a Feldenkrais Awareness Through Movement sequence would result in an increase in neck flexion range of motion and if the subjects would indicate a significantly lower level of perceived effort posttest. Measurements of range of motion were taken using a gravity-based cervical range of motion goniometer. The subjects recorded their perceived efforts on a visual analogue scale. The range of motion data were analyzed using a one-way ANOVA. The visual analogue scale data were analyzed with a Mann-Whitney U test. The data supported both hypotheses. Based on these findings, further investigation of Feldenkrais methods in the treatment of patients appears warranted