Spring is traditionally a time for renewed interest in fitness activities.
But these days, our enthusiasm is often tempered by a growing uneasiness about the benefits of exercise. Increasingly, we are hearing concerns being voiced about the effectiveness of some fitness programs. These are a few of the many newspaper headlines that have appeared in recent years. For people like myself who grew up in America during the 1940 s and 1950 s, today s emphasis on fitness came as quite a surprise. In those days, most people hated exercising.