Stretching your foot should not cause discomfort, so if you experience pain or a burning sensation you may be experiencing plantar fasciitis, a heel spur or pain from an injury.

Tendinitis can affect just about every area of your foot. It most commonly affects your Achilles tendon as well as those that pass across the top of your foot -- the extensor hallucis longus and the extensor digitorum longus.

There can be many reasons why a person can feel weak and light-headed. Most of these can be treated quickly and aren't serious; however, sometimes these symptoms can signal a more serious condition. Treatment will depend on the reason for these symptoms. Always seek medical treatment if someone becomes unconscious.

The power and ability to move one's legs stems from the interaction of two processes. These are the nerve signal that is sent to the muscles from the brain and passes via the spinal cord, and the muscle's intrinsic power to contract. Any interruption in this pathway in the lower limb can result in leg weakness.

Walking is an aerobic exercise that can help you manage your weight, tone your lower-body muscles and help promote a healthier lifestyle. As with any type of exercise, you might feel your legs ache or get tired when you go for a walk.

Stretching is an important part of fitness and sports training. Stretching can improve your flexibility, reduce post-exercise muscle soreness, increase your sporting or exercise performance, reduce muscle tension, minimize your risk of injury and help you relax.