We never realize how important our legs are until we find it difficult to walk. It could be a fracture or a simple sprain, but it surely troubles us a lot. This is not just the case with one or two people, there are a million people out there who feel are not able to freely walk without external support. For them, it becomes increasingly important to have the right kind of assistance to lead a perfectly normal life. A walking aid also sometimes called mobility aid or ambulatory aid refers to all those devices that are designed to assist the mobility of people who find it difficult to do the same without help. Walking aids can be of various types – medical walkers, crutches, canes, ambulatory aids etc. The following gives a detailed description of these aids. Medical Walkers – Medical walkers or simply walkers are assistive devices made of lightweight metal tubing material that are used to aid the walking of those people who have some kind of a disability in walking. A walker usually has four strong legs that are widely placed. This waist high device is held by the patient, with both hands and moved slightly forward after taking a step forward with each of his/her foot. A walker can be broadly classified as jointed, wheeled or fixed. Jointed Walkers – These walkers consist of swivel joints which help the patient have a quicker mobility. The sides in these walkers move in alternation to each other. This makes it easier for the patient to move around. Wheeled Walkers – A walker with one pair of wheeled legs is a wheeled walker. These can further be subdivided into heavy- wheeled and front-wheeled walkers. Heavy-wheeled walkers are mainly for institutional purposes. They can be unsafe as they are cumbersome and heavy. Front-wheeled walkers, on the other hand are ones with wheels on its front legs. This increases the mobility of the patient because he does not need to pick up the walker with every step he takes.Fixed Walkers – it is the most widely used of all kinds of walkers with its joints fixed and no wheels. These walkers need to be picked up by the patient and placed forward in order to move further. Fixed walkers are also of three kinds- stair climbing walkers, forearm support walkers and standard pick up walkers. As these names suggest, the first one is mainly used for the purpose of climbing stairs. They are used by people with a stronger upper body. The second one is a heavier walker for those patients who suffer from upper arm deformity, pain or weakness. The last one is the most commonly used medical walker. Crutches – A crutch is a walking aid that is used to support a patient with a mobility impairment. There are various kinds of crutches available today. Underarm Crutch – These are also called auxiliary crutches. These are the most commonly used crutches by people with some temporary injury or disability. These have pads that are placed below the armpits against the rib cage. The patient uses these by holding the grip that is parallel to and below the pad. Platform Crutch – These crutches are not very common in use. They are mostly used by people with a weak hand grip which is caused due to cerebral palsy, arthritis etc. In these the arm is properly strapped and placed on a horizontal platform. The hand rests on a grip which can be designed so as to meet the patient’s personal requirement. Strutter – These are similar to underarm crutches except that they also have large soles that stay flat on the ground when the patient walks. They distribute the weight of the body and reduce the risk of nerve damage. Leg Support – These crutches do not require the usage of hands and are used by people with impairment in only one lower leg. The body weight is transferred to the thigh and knee, leaving the leg free. Forearm Crutch – Also called the Lofstrand Crutch, these have a cuff that goes around the forearm. These are suitable for people with a permanent disability. Canes – A cane or walking stick is simplest and oldest form of walking aid, held by the user in the hand. It is used to transmit the weight off the leg to the ground through the patient’s wrists and hands. Thus, ambulatory devices could be many; their usage varies from person to person depending on the disability they suffer.