Check out the transcript of a message board discussion with Weather Expert, Ingrid Amberger. Dr. Jeffrey Masters, Director of Meteorology for the Weather Underground Web site, answered student weather and winter storm questions in the winter of 2001. Dr. Masters received his B.S. and M.S. degrees in Meteorology from the University of Michigan.
It is easier on the joints than running. It is non-impact and therefore safer and easier on the joints. Biking is an exercise that you can do even at an older age. It is a great aerobic exercise for losing weight and increasing cardio endurance.
Due to the reclined position, recumbent bikes are a poor choice for strengthening the upper body. To work your arm muscles on an upright or recumbent bike, get a set of hand weights and perform arm exercises as you ride. Cycling, whether indoors or out, helps strengthen your lower back muscles and can help ease certain types of low back pain.