Vigorous Activity Significantly Outperforms Moderate Activity
A new study using objective measurements suggests that previous physical activity guidelines, which calculated the equivalence between vigorous and moderate intensity exercise based on caloric expenditure (a 1:2 ratio), dramatically underestimated the health benefits of vigorous activity. The research, which tracked outcomes such as all-cause mortality, cardiovascular disease, and cancer, found that vigorous intensity physical activity is anywhere from four to ten times more potent than moderate intensity activity in reducing disease risk.
The health equivalence ratios comparing the required time of moderate intensity physical activity (MOD) needed to match 1 minute of vigorous intensity physical activity (VIG) are substantial:
- 1 minute of VIG was equivalent to about 4 minutes of MOD for reducing the risk of all-cause mortality.
- 1 minute of VIG was equivalent to nearly 8 minutes (7.8 minutes) of MOD for reducing the risk of cardiovascular related mortality, which is especially important as cardiovascular disease is the leading cause of death in many developed nations.
- 1 minute of VIG was equivalent to approximately 9.4 minutes (nearly 10 times) of MOD for reducing the risk of developing type 2 diabetes.
- 1 minute of VIG was equivalent to 3.4 to 3.5 minutes of MOD for reducing cancer mortality.
The efficiency gap is even wider when comparing vigorous activity to light activity, where 1 minute of vigorous activity was equal to between 53 and 94 minutes of light activity for most outcomes, and up to 156 minutes (nearly 2.5 hours) for cancer mortality.
