T-REX Hand Straps | Stop the Swell The Problem: Gravity Always Wins. Ruck long enough with enough weight, and physics takes its toll. Blood pools in your hands, leading to sausage fingers and swollen hands. The Solution: The T-REX Position. The apex predator of all the dinosaurs naturally carried its arms high, increasing blood flow back to the heart. This is smart. The take-away for all of us is that elevating our hands keeps them working better longer so the hunt (for miles) continues strong.