Fig. 4
From: Footwear has a modifying effect on tibial loading during military weight carriage

Examples of unloaded (0 kg) and loaded (15 and 30 kg) conditions during walking. (A) barefoot-unloaded; (B) trainers-unloaded; (C) military boots-unloaded; (D) barefoot-loaded; (E) trainers-loaded; (F) military boots-loaded.