Cushions and seating are powered or non-powered devices placed on a wheelchair or other seating surfaces. They utilize air, fluid, foam, gel, water, wool or a combination of these components to distribute pressure and reduce friction and shear forces.
PNF stands for Proprioceptive Neuromuscular Facilitation. This type of stretching is often referred to as partner stretching because two people are needed to perform the movements. There are many forms of PNF, but most involve an isometric hold followed by a static stretch of the same muscle group.
Your quads and hamstrings are two of the most important muscles involved in the splits, so it's important to get them as flexible as possible. Here are two more useful stretches for these muscles: To stretch your quads, kneel down in a lunging position, using a pillow to support your back knee if necessary.