BACKGROUND: Plantar heel pain syndrome (PHPS) is a common foot disorder; however, there is limited clinical evidence on which to base treatment. Repeated clinical observations indicating heel pain during heel rise and minisquat on the affected leg, involving activation of posterior calf muscles, formed the basis of this study. OBJECTIVE: To compare deep massage therapy to posterior calf muscles and neural mobilization with a self-stretch exercise program (DMS) to a common treatment protocol of ultrasound therapy to the painful heel area with the same self-stretch exercises (USS). METHODS: Patients with PHPS were assigned to a program of 8 treatments over a period of 4 to 6 weeks in a single-blind randomized clinical trial. Functional status (FS) at admission and discharge from therapy as measured by the Foot and Ankle Computerized Adaptive Test was the main outcome measure. RESULTS: Sixty-nine patients were included in the trial (mean age 53, standard deviation (SD) 13, range 25 to 86, 57% women), 36 received DMS treatment and 33 with USS. The overall group-by-time interaction for the mixed-model analysis of variance (ANOVA) was found statistically significant (p = 0.034), with a change of (mean (confidence interval, CI)) 15 (9 to 21) and 6 (1 to 11) FS points for the DMS and USS groups, respectively. CONCLUSIONS: Data indicated that both treatment protocols resulted in an overall short-term improvement, however, DMS treatment was significantly more effective in treating PHPS than USS treatment.

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