Backwards treadmill walking (especially on an incline) is one of the most underrated warm-ups for strength, athleticism, and joint longevity. If you don't have a sled, this is the next best thing! 1. Bulletproofs the knees Pumps blood into the knee and patellar tendon without impact, strengthens quads near terminal knee extension, and makes the knees feel warmer and more stable before lifting or running. This is how you prevent and improve current injuries. This movement drives blood to areas of the lower quad that no other exercise can replicate. 2. Strengthens the lower-leg chain Builds tibialis, calves, ankles, and foot stabilizers most programs ignore. Improves shock absorption, knee tracking, and overall squat and running mechanics. 3. Trains deceleration with low joint stress Develops braking capacity, tendon durability, and knee control without pounding. Leads to safer landings, better change-of-direction, and more longevity with hard training. 5-10 minutes before lower body days will change your life after a week.