Hey! Everybody trains differently for different things. Bodybuilders are required to have a high level of physical fitness training and workouts. However, not everyone uses the same methods, and they may only be physically active when training, which would not give them a high level of total physical fitness. An aerobics instructor may only be doing a physical activity ( aerobics) when teaching, which would again not give them a high level of total physical fitness. So, no. This does not apply to everyone, as it is too broad-range. I wish you good health and positive energy! :) - Aspen