For adults with overweight or obesity, doing 30 minutes of cardio and 30 minutes of strength training three times a week for a year has the same effect on overall cardiovascular risk as doing 60 minutes of cardio alone.

In adults with overweight or obesity, doing resistance training for 60 minutes three times a week for a year does not lead to a meaningful improvement in overall cardiovascular risk markers, even though it reduces body fat and increases muscle strength.

Adults with overweight or obesity who engage in supervised aerobic exercise three times a week for one year show a measurable improvement in a combined measure of cardiovascular risk factors, including lower body fat, blood pressure, LDL cholesterol, and fasting glucose, compared to those who do not exercise.

If you're at very high risk for heart problems, doing just 42 minutes of intense exercise a week seems to give you the best heart health boost — doing more might not help as much and could even reduce the benefits.

In adults with obesity, doing both cardio and strength training for ten weeks leads to a measurable increase in muscle strength, while doing only cardio does not produce the same increase.

For inactive middle-aged men with overweight or obesity, doing aerobic exercise for 8 weeks lowers total cholesterol levels more than doing resistance training.