IMG_2525 Published on June 5, 2017 in Mini Study: Loading Increased Caloric Burn for Uphill Movement 50+ PercentFull resolution (3456 × 5184) ← Previous Next → Subjects used pack frames and 5-gallon jugs of water as primary loading source for the loaded trials. A hanging digital scale was used to weigh. Cody had to supplement the water with weight to get to his 25% bodyweight load.