Najafian Najafabadi, M., H. Sadeghi, and P. Tehrani. “The Effect of Backpack Carriage on Myoelectric Variables of Selected Lower Extremity Muscles in Girls and Boys With 7-10 Years Age During Forward and Backward Walking”. Journal of Clinical Physiotherapy Research, vol. 6, no. 1, Jan. 2021, p. e28, doi:10.22037/jcpr.v6i1.32965.