Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 50 10 2021 10 04 Analysis of the Pain Relief Effect of Walking Backwards Down on a Steep Slope in Patients with Plantar Fasciitis 2139 2140 Sung-Bum Ju Department of Physical Education, Busan National University of Education, Busan, South Korea 2019 04 10 2019 04 27 No Abstract https://ijph.tums.ac.ir/index.php/ijph/article/view/16788 https://ijph.tums.ac.ir/index.php/ijph/article/download/16788/7392