Moderate physical activity is the activity that causes light sweating or slight increases in heart or breathing rates. Vigorous physical activity was defined as activity that causes heavy sweating or large increases in heart or breathing rates.
During mean follow-up of 10 years, 37,000 deaths occurred. One third of subjects reported no moderate or vigorous activity. Compared with no activity, any moderate or vigorous activity was associated with less risk of cardiovascular death.
Slight increase in vigorous activity was linked to oower all-cause mortality. For example, in adjusted analyses, participants with >50% vigorous activity had 17% lower risk for death than did participants with no vigorous activity, whereas those with <50% vigorous activity had 10% lower risk.
Participants with 150 to 300 minutes of moderate activity weekly that included at least 150 minutes of vigorous activity had the lowest risk for death.
Source: Medindia