What is a peak expiratory flow rate test? The peak expiratory flow rate (PEFR) test measures how fast a person can exhale. The PEFR test is also called peak flow. This test is commonly performed at home with a handheld device called a peak flow monitor. For the PEFR test to be useful, you must keep continuous records of your flow rate.
Get more fiber in your diet. Soluble fiber (such as that found in apples, oats, and cherries) lowers insulin levels which can speed up the burning of visceral belly fat. 1  Add fiber to your diet slowly. 2  If you are currently getting 10g of fiber a day, don't jump to 35g of fiber the next day.
High in carbs, sweet spuds provide long-lasting energy for your run, says Lewin. One potato alone has 230 percent of your daily need for vitamin A, which is key for a strong immune system. The skin also contains soluble fiber, which, according to a study in Obesity, can help reduce belly fat when paired with exercise. But if you eat it, give yourself an hour or more to digest before running.