The Ministry of health of the United States recommends that healthy adults who exercise moderately fitness. At least 150 minutes a week (or swim) or 75 minutes a week heavy level (Sprint)
US Department of Health recommends that healthy adults, moderate aerobic exercise. At least 150 minutes per week (brisk walking or swimming) or a heavy week for 75 minutes (running).
The Ministry of health of the United States to introduce adult healthy aerobic exercise level, at least a week 150 minutes. (brisk walking or swimming), or in a week 75 level heavy minutes (running).