The fall is a wonderful time to begin or continue a fitness walking program. Fitness walking provides aerobic conditioning without risk of injury or undue stress on muscles and joints. In the beginning of a fitness walking program, it's best to concentrate on proper form first and work on increasing speed later. Begin each workout with a slow walk for 5 minutes to warm up your muscles. Continue at this pace for as long as possible eventually working up to 30-60 minutes and end with a slow walk for 5 minutes to cool down.
Repeat stretches to increase flexibility.