A closer look
It looks a bit silly, but 'retro walking' is a powerful physical therapy secret. Walking backward engages the quadriceps in a completely different way, reducing the painful compressive forces on your knee caps. Just 10 minutes of backward walking on a treadmill at a slow incline pumps healing synovial fluid into the joint and radically improves your balance. It is a safe, low-impact hack to bulletproof your knees for longevity.






