Effect sizes with 95% confidence intervals for improvements in ankle dorsiflexion range of motion immediate after therapeutic modalities in individuals with acute or subacute ankle sprain. Abbreviations: BMS, biomechanical muscle stimulation; CG, conventional treatment group; HVPS (–), negative-polarity high-voltage pulsed-current electrical stimulation; HVPS (+), positive-polarity high-voltage pulsed-current electrical stimulation; HBO, hyperbaric oxygen therapy; and RICE, rest, ice, compression, and elevation.