1.Can effectively eliminate muscle fatigue,restore muscle strength, improve muscle tendon elasticity and hardness of physical properties. 2.Whether you're using it to develop flexibility and mobility in your lower legs or to rehab an injury, the benefits of regular slant board use are immeasurable. 3.Whether you've got patella tendonitis, Achilles tendonitis, plantar fasciitis, or really any sort of itis, the slant board is going to supercharge your recovery. 4.It's also useful for relieving the stress around muscles which tend to ache after exercise. 5.By doing regular calf, Achilles, and hamstring stretches for extended periods of time (more than 90 second holds), you can very quickly gain back the ankle mobility you've lost over years of neglect.