The document discusses crutch walking and the proper use of crutches. It defines crutches as assisting patients to walk while providing support. Crutches increase base of support, maintain center of gravity, redistribute weight bearing, compensate for weak muscles, and decrease pain. Proper crutch use requires muscle strength, correct crutch selection, balance, proper gait patterns, and instructions. There are two main types of crutches: standard axillary crutches and forearm crutches. The document outlines correct stance and four different crutch walking gaits.